Jan Keller

High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiency

Keller, Jan; Kiselman, Klara; Donzel-Gargand, Olivier; Martin, Natalia M. et al.

Ingår i Nature Energy, s. 467-478, 2024

• DOI för High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiency
• Ladda ner fulltext (pdf) av High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiency

Silver Alloying in Highly Efficient CuGaSe₂ Solar Cells with Different Buffer Layers

Keller, Jan; Stolt, Lars; Törndahl, Tobias; Edoff, Marika

Ingår i Solar RRL, 2023

• DOI för Silver Alloying in Highly Efficient CuGaSe₂ Solar Cells with Different Buffer Layers
• Ladda ner fulltext (pdf) av Silver Alloying in Highly Efficient CuGaSe₂ Solar Cells with Different Buffer Layers

Wide-Gap Chalcopyrite Solar Cells with Indium Oxide-Based Transparent Back Contacts

Keller, Jan; Stolt, Lars; Donzel-Gargand, Olivier; Kubart, Tomas et al.

Ingår i Solar RRL, 2022

• DOI för Wide-Gap Chalcopyrite Solar Cells with Indium Oxide-Based Transparent Back Contacts
• Ladda ner fulltext (pdf) av Wide-Gap Chalcopyrite Solar Cells with Indium Oxide-Based Transparent Back Contacts

Rubidium Fluoride Absorber Treatment for Wide-Gap (Ag,Cu)(In,Ga)Se-2 Solar Cells

Keller, Jan; Aboulfadl, Hisham; Stolt, Lars; Donzel-Gargand, Olivier et al.

Ingår i Solar RRL, 2022

• DOI för Rubidium Fluoride Absorber Treatment for Wide-Gap (Ag,Cu)(In,Ga)Se-2 Solar Cells
• Ladda ner fulltext (pdf) av Rubidium Fluoride Absorber Treatment for Wide-Gap (Ag,Cu)(In,Ga)Se-2 Solar Cells

Wide‐gap (Ag,Cu)(In,Ga)Se₂ solar cells with different buffer materials—A path to a better heterojunction

Keller, Jan; Sopiha, Kostiantyn V.; Stolt, Olof; Stolt, Lars et al.

Ingår i Progress in Photovoltaics, s. 237-250, 2020

• DOI för Wide‐gap (Ag,Cu)(In,Ga)Se₂ solar cells with different buffer materials—A path to a better heterojunction

Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorbers

Sopiha, Kostiantyn; Larsen, Jes K; Donzel-Gargand, Olivier; Khavari, Faraz et al.

Ingår i Journal of Materials Chemistry A, s. 8740-8751, 2020

• DOI för Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorbers
• Ladda ner fulltext (pdf) av Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorbers

Bifacial Cu(In,Ga)Se₂ solar cells using hydrogen‐doped In₂O₃ films as a transparent back contact

Keller, Jan; Chen, Wei-Chao; Riekehr, Lars; Kubart, Tomas et al.

Ingår i Progress in Photovoltaics, s. 846-858, 2018

• DOI för Bifacial Cu(In,Ga)Se₂ solar cells using hydrogen‐doped In₂O₃ films as a transparent back contact

Record 1.0 V open-circuit voltage in wide band gap chalcopyrite solar cells

Larsson, Fredrik; Shariati, M. Nina; Keller, Jan; Frisk, Christopher et al.

Ingår i Progress in Photovoltaics, s. 755-763, 2017

• DOI för Record 1.0 V open-circuit voltage in wide band gap chalcopyrite solar cells

Titanium-Doped In₂O₃: A High-Mobility, Thermally Stable Back Contact for Bifacial Chalcopyrite Solar Cells

Keller, Jan; Mudgal, Sapna; Jurado-Estrada, Ana; Togay, Mustafa et al.

Ingår i Solar RRL, 2026

• DOI för Titanium-Doped In₂O₃: A High-Mobility, Thermally Stable Back Contact for Bifacial Chalcopyrite Solar Cells
• Ladda ner fulltext (pdf) av Titanium-Doped In₂O₃: A High-Mobility, Thermally Stable Back Contact for Bifacial Chalcopyrite Solar Cells

How ALD Settings May Affect the Chemical Structure of the (Zn_1–xSn_x)O_y/Wide-Gap (Ag,Cu)GaSe₂ Thin-Film Solar Cell Interface

Demling, Angelika; Keller, Jan; Wilks, Regan G.; Hägglund, Carl et al.

Ingår i ACS Applied Materials and Interfaces, s. 6180-6190, 2026

• DOI för How ALD Settings May Affect the Chemical Structure of the (Zn_1–xSn_x)O_y/Wide-Gap (Ag,Cu)GaSe₂ Thin-Film Solar Cell Interface
• Ladda ner fulltext (pdf) av How ALD Settings May Affect the Chemical Structure of the (Zn_1–xSn_x)O_y/Wide-Gap (Ag,Cu)GaSe₂ Thin-Film Solar Cell Interface

Zn_1-xSn_xO_y Buffer Layer Deposited by Chemical Bath Deposition for Low and Wide Bandgap Cu(In, Ga)Se₂ Solar Cells

Garzon, Diego A.; Cerqueira, Rafael; Almeida Alves, Cristiana F.; Moura, Ana Margarida et al.

Ingår i Advanced Energy & Sustainability Research, 2026

• DOI för Zn_1-xSn_xO_y Buffer Layer Deposited by Chemical Bath Deposition for Low and Wide Bandgap Cu(In, Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Zn_1-xSn_xO_y Buffer Layer Deposited by Chemical Bath Deposition for Low and Wide Bandgap Cu(In, Ga)Se₂ Solar Cells

Enhancing photocurrent collection in wide-gap ACIGS solar cells

Diethelm, Matthias; Mitmit, Ceren; Hägglund, Carl; Dimitrievska, Mirjana et al.

Ingår i Journal of Physics, 2026

• DOI för Enhancing photocurrent collection in wide-gap ACIGS solar cells
• Ladda ner fulltext (pdf) av Enhancing photocurrent collection in wide-gap ACIGS solar cells

Studying the Impact of Impurities on the Performance of Cadmium‐Free all Sputtered CIGS Solar Cells Using Titanium–Tungsten Barrier

Upreti, Tanvi; Keller, Jan; Vines, Lasse; Israr‐Qadir, Muhammad et al.

Ingår i Solar RRL, 2025

• DOI för Studying the Impact of Impurities on the Performance of Cadmium‐Free all Sputtered CIGS Solar Cells Using Titanium–Tungsten Barrier
• Ladda ner fulltext (pdf) av Studying the Impact of Impurities on the Performance of Cadmium‐Free all Sputtered CIGS Solar Cells Using Titanium–Tungsten Barrier

Titanium-Doped In₂O₃: A High-Mobility, Thermally Stable Back Contact for Bifacial Chalcopyrite Solar Cells

Keller, Jan; Mudgal, Sapna; Jurado-Estrada, Ana; Togay, Mustafa et al.

Ingår i Solar RRL, 2026

• DOI för Titanium-Doped In₂O₃: A High-Mobility, Thermally Stable Back Contact for Bifacial Chalcopyrite Solar Cells
• Ladda ner fulltext (pdf) av Titanium-Doped In₂O₃: A High-Mobility, Thermally Stable Back Contact for Bifacial Chalcopyrite Solar Cells

How ALD Settings May Affect the Chemical Structure of the (Zn_1–xSn_x)O_y/Wide-Gap (Ag,Cu)GaSe₂ Thin-Film Solar Cell Interface

Demling, Angelika; Keller, Jan; Wilks, Regan G.; Hägglund, Carl et al.

Ingår i ACS Applied Materials and Interfaces, s. 6180-6190, 2026

• DOI för How ALD Settings May Affect the Chemical Structure of the (Zn_1–xSn_x)O_y/Wide-Gap (Ag,Cu)GaSe₂ Thin-Film Solar Cell Interface
• Ladda ner fulltext (pdf) av How ALD Settings May Affect the Chemical Structure of the (Zn_1–xSn_x)O_y/Wide-Gap (Ag,Cu)GaSe₂ Thin-Film Solar Cell Interface

Zn_1-xSn_xO_y Buffer Layer Deposited by Chemical Bath Deposition for Low and Wide Bandgap Cu(In, Ga)Se₂ Solar Cells

Garzon, Diego A.; Cerqueira, Rafael; Almeida Alves, Cristiana F.; Moura, Ana Margarida et al.

Ingår i Advanced Energy & Sustainability Research, 2026

• DOI för Zn_1-xSn_xO_y Buffer Layer Deposited by Chemical Bath Deposition for Low and Wide Bandgap Cu(In, Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Zn_1-xSn_xO_y Buffer Layer Deposited by Chemical Bath Deposition for Low and Wide Bandgap Cu(In, Ga)Se₂ Solar Cells

Enhancing photocurrent collection in wide-gap ACIGS solar cells

Diethelm, Matthias; Mitmit, Ceren; Hägglund, Carl; Dimitrievska, Mirjana et al.

Ingår i Journal of Physics, 2026

• DOI för Enhancing photocurrent collection in wide-gap ACIGS solar cells
• Ladda ner fulltext (pdf) av Enhancing photocurrent collection in wide-gap ACIGS solar cells

Studying the Impact of Impurities on the Performance of Cadmium‐Free all Sputtered CIGS Solar Cells Using Titanium–Tungsten Barrier

Upreti, Tanvi; Keller, Jan; Vines, Lasse; Israr‐Qadir, Muhammad et al.

Ingår i Solar RRL, 2025

• DOI för Studying the Impact of Impurities on the Performance of Cadmium‐Free all Sputtered CIGS Solar Cells Using Titanium–Tungsten Barrier
• Ladda ner fulltext (pdf) av Studying the Impact of Impurities on the Performance of Cadmium‐Free all Sputtered CIGS Solar Cells Using Titanium–Tungsten Barrier

Rubidium Fluoride Absorber Treatment for Wide‐Gap and Bifacial Ag(In,Ga)Se₂ Solar Cells

Keller, Jan; Mudgal, Sapna; Martin, Natalia M.; Donzel-Gargand, Olivier et al.

Ingår i Solar RRL, 2025

• DOI för Rubidium Fluoride Absorber Treatment for Wide‐Gap and Bifacial Ag(In,Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Rubidium Fluoride Absorber Treatment for Wide‐Gap and Bifacial Ag(In,Ga)Se₂ Solar Cells

Ultrathin AlO_x Films for Back Contact Passivation in Bifacial Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells

Keller, Jan; Mudgal, Sapna; Hägglund, Carl; Kiselman, Klara et al.

Ingår i Solar RRL, 2025

• DOI för Ultrathin AlO_x Films for Back Contact Passivation in Bifacial Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Ultrathin AlO_x Films for Back Contact Passivation in Bifacial Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells

Light-Soaking Effects in High-Efficiency Cu(In,Ga)Se₂ and (Ag,Cu)(In,Ga)Se₂ Solar Cells

Kiselman, Klara; Keller, Jan; Pearson, Patrick; Sopiha, Kostiantyn et al.

Ingår i Progress in Photovoltaics, s. 735-746, 2025

• DOI för Light-Soaking Effects in High-Efficiency Cu(In,Ga)Se₂ and (Ag,Cu)(In,Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Light-Soaking Effects in High-Efficiency Cu(In,Ga)Se₂ and (Ag,Cu)(In,Ga)Se₂ Solar Cells

Extended thermal admittance spectroscopy for the investigation of composition-dependent meta-stability behaviours in wide-gap (Ag,Cu)(In,Ga)Se₂ solar cells

Pearson, Patrick; Keller, Jan; Carron, Romain; Platzer Björkman, Charlotte

Ingår i Journal of Physics, 2025

• DOI för Extended thermal admittance spectroscopy for the investigation of composition-dependent meta-stability behaviours in wide-gap (Ag,Cu)(In,Ga)Se₂ solar cells
• Ladda ner fulltext (pdf) av Extended thermal admittance spectroscopy for the investigation of composition-dependent meta-stability behaviours in wide-gap (Ag,Cu)(In,Ga)Se₂ solar cells

Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Sawa, Hezekiah B.; Babucci, Melike; Keller, Jan; Platzer Björkman, Charlotte et al.

Ingår i Physica Status Solidi (B), 2024

• DOI för Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Bifacial Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cell with 13.6% Efficiency Using In₂O₃:W as a Back Contact Material

Keller, Jan; Stolt, Lars; Donzel-Gargand, Olivier; Violas, André F. et al.

Ingår i Solar RRL, 2024

• DOI för Bifacial Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cell with 13.6% Efficiency Using In₂O₃:W as a Back Contact Material
• Ladda ner fulltext (pdf) av Bifacial Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cell with 13.6% Efficiency Using In₂O₃:W as a Back Contact Material

Ag-Dependent Behavior Threshold and Metastability in Wide-Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells

Pearson, Patrick; Keller, Jan; Stolt, Lars; Donzel-Gargand, Olivier et al.

Ingår i Solar RRL, 2024

• DOI för Ag-Dependent Behavior Threshold and Metastability in Wide-Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Ag-Dependent Behavior Threshold and Metastability in Wide-Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells

High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiency

Keller, Jan; Kiselman, Klara; Donzel-Gargand, Olivier; Martin, Natalia M. et al.

Ingår i Nature Energy, s. 467-478, 2024

• DOI för High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiency
• Ladda ner fulltext (pdf) av High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiency

Effect of Ordered Vacancy Compounds on the Carrier Collection in Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells

Keller, Jan; Martin, Natalia M.; Donzel-Gargand, Olivier; Kiselman, Klara et al.

Ingår i Solar RRL, 2024

• DOI för Effect of Ordered Vacancy Compounds on the Carrier Collection in Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Effect of Ordered Vacancy Compounds on the Carrier Collection in Wide‐Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells

Enhanced performance of Cu₂ZnSnS₄ based bifacial solar cells with FTO and W/FTO back contacts through absorber air annealing and Na incorporation

Sawa, Hezekiah B.; Babucci, Melike; Donzel-Gargand, Olivier; Pearson, Patrick et al.

Ingår i Solar Energy Materials and Solar Cells, 2024

• DOI för Enhanced performance of Cu₂ZnSnS₄ based bifacial solar cells with FTO and W/FTO back contacts through absorber air annealing and Na incorporation

Toward improving the performance of Cu₂ZnSnS₄-based solar cells with Zr, W or sulfurized layers at the SnO₂:F/Cu₂ZnSnS₄ rear interface

Sawa, Hezekiah B.; Babucci, Melike; Keller, Jan; Platzer Björkman, Charlotte et al.

Ingår i Thin Solid Films, 2024

• DOI för Toward improving the performance of Cu₂ZnSnS₄-based solar cells with Zr, W or sulfurized layers at the SnO₂:F/Cu₂ZnSnS₄ rear interface

Investigating the Role of Ag and Ga Content in the Stability of Wide-Gap (Ag,Cu)(In,Ga)Se-2 Thin-Film Solar Cells

Pearson, Patrick; Keller, Jan; Stolt, Lars; Platzer Björkman, Charlotte

Ingår i Physica Status Solidi (B), 2023

• DOI för Investigating the Role of Ag and Ga Content in the Stability of Wide-Gap (Ag,Cu)(In,Ga)Se-2 Thin-Film Solar Cells
• Ladda ner fulltext (pdf) av Investigating the Role of Ag and Ga Content in the Stability of Wide-Gap (Ag,Cu)(In,Ga)Se-2 Thin-Film Solar Cells

Sn_1-xGe_xO_y and Zn_1-xGe_xO_y by Atomic Layer Deposition-Growth Dynamics, Film Properties, and Compositional Tuning for Charge Selective Transport in (Ag,Cu)(In,Ga)Se₂ Solar Cells

Hultqvist, Adam; Keller, Jan; Martin, Natalia M.; Larsson, Fredrik et al.

Ingår i ACS Applied Energy Materials, s. 9824-9836, 2023

• DOI för Sn_1-xGe_xO_y and Zn_1-xGe_xO_y by Atomic Layer Deposition-Growth Dynamics, Film Properties, and Compositional Tuning for Charge Selective Transport in (Ag,Cu)(In,Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av Sn_1-xGe_xO_y and Zn_1-xGe_xO_y by Atomic Layer Deposition-Growth Dynamics, Film Properties, and Compositional Tuning for Charge Selective Transport in (Ag,Cu)(In,Ga)Se₂ Solar Cells

Depth-Dependent Atomic-Scale Structural Changes in (Ag,Cu)(In,Ga)Se₂ Absorbers Relevant for Thin-Film Solar Cells

Babucci, Melike; Meira, Debora M.; Wallin, Erik; Keller, Jan et al.

Ingår i ACS Applied Energy Materials, s. 9264-9275, 2023

• DOI för Depth-Dependent Atomic-Scale Structural Changes in (Ag,Cu)(In,Ga)Se₂ Absorbers Relevant for Thin-Film Solar Cells

Silver Alloying in Highly Efficient CuGaSe₂ Solar Cells with Different Buffer Layers

Keller, Jan; Stolt, Lars; Törndahl, Tobias; Edoff, Marika

Ingår i Solar RRL, 2023

• DOI för Silver Alloying in Highly Efficient CuGaSe₂ Solar Cells with Different Buffer Layers
• Ladda ner fulltext (pdf) av Silver Alloying in Highly Efficient CuGaSe₂ Solar Cells with Different Buffer Layers

Post‐deposition sulfurization of CuInSe₂ solar absorbers by employing sacrificial CuInS₂ precursor layers

Khavari, Faraz; Saini, Nishant; Keller, Jan; Larsen, Jes K. et al.

Ingår i Physica Status Solidi (A), 2022

• DOI för Post‐deposition sulfurization of CuInSe₂ solar absorbers by employing sacrificial CuInS₂ precursor layers
• Ladda ner fulltext (pdf) av Post‐deposition sulfurization of CuInSe₂ solar absorbers by employing sacrificial CuInS₂ precursor layers

The Effect of Absorber Stoichiometry on the Stability of Widegap (Ag,Cu)(In,Ga)Se₂ Solar Cells

Pearson, Patrick; Keller, Jan; Stolt, Lars; Edoff, Marika et al.

Ingår i Physica Status Solidi (B), 2022

• DOI för The Effect of Absorber Stoichiometry on the Stability of Widegap (Ag,Cu)(In,Ga)Se₂ Solar Cells
• Ladda ner fulltext (pdf) av The Effect of Absorber Stoichiometry on the Stability of Widegap (Ag,Cu)(In,Ga)Se₂ Solar Cells

Off-stoichiometry in I-III-VI2 chalcopyrite absorbers: a comparative analysis of structures and stabilities

Sopiha, Kostiantyn; Larsen, Jes K.; Keller, Jan; Edoff, Marika et al.

Ingår i Faraday discussions, s. 357-374, 2022

• DOI för Off-stoichiometry in I-III-VI2 chalcopyrite absorbers: a comparative analysis of structures and stabilities
• Ladda ner fulltext (pdf) av Off-stoichiometry in I-III-VI2 chalcopyrite absorbers: a comparative analysis of structures and stabilities

Long term stability and recovery of 3 MeV proton irradiated Cu(In,Ga)Se₂ and Cu₂ (Zn,Sn)(S,Se)₄ thin film solar cells

Pearson, Patrick; Keller, Jan; Larsen, Jes; Kosyak, Volodymyr et al.

Ingår i Thin Solid Films, 2022

• DOI för Long term stability and recovery of 3 MeV proton irradiated Cu(In,Ga)Se₂ and Cu₂ (Zn,Sn)(S,Se)₄ thin film solar cells
• Ladda ner fulltext (pdf) av Long term stability and recovery of 3 MeV proton irradiated Cu(In,Ga)Se₂ and Cu₂ (Zn,Sn)(S,Se)₄ thin film solar cells

Wide-Gap Chalcopyrite Solar Cells with Indium Oxide-Based Transparent Back Contacts

Keller, Jan; Stolt, Lars; Donzel-Gargand, Olivier; Kubart, Tomas et al.

Ingår i Solar RRL, 2022

• DOI för Wide-Gap Chalcopyrite Solar Cells with Indium Oxide-Based Transparent Back Contacts
• Ladda ner fulltext (pdf) av Wide-Gap Chalcopyrite Solar Cells with Indium Oxide-Based Transparent Back Contacts

Rubidium Fluoride Absorber Treatment for Wide-Gap (Ag,Cu)(In,Ga)Se-2 Solar Cells

Keller, Jan; Aboulfadl, Hisham; Stolt, Lars; Donzel-Gargand, Olivier et al.

Ingår i Solar RRL, 2022

• DOI för Rubidium Fluoride Absorber Treatment for Wide-Gap (Ag,Cu)(In,Ga)Se-2 Solar Cells
• Ladda ner fulltext (pdf) av Rubidium Fluoride Absorber Treatment for Wide-Gap (Ag,Cu)(In,Ga)Se-2 Solar Cells

Effects of material properties of band-gap-graded Cu(In,Ga)Se-2 thin films on the onset of the quantum efficiency spectra of corresponding solar cells

Thomas, Sinju; Bertram, Tobias; Kaufmann, Christian; Kodalle, Tim et al.

Ingår i Progress in Photovoltaics, s. 1238-1246, 2022

• DOI för Effects of material properties of band-gap-graded Cu(In,Ga)Se-2 thin films on the onset of the quantum efficiency spectra of corresponding solar cells
• Ladda ner fulltext (pdf) av Effects of material properties of band-gap-graded Cu(In,Ga)Se-2 thin films on the onset of the quantum efficiency spectra of corresponding solar cells

Investigation of AgGaSe₂ as a Wide Gap Solar Cell Absorber

Larsen, Jes Kipkoech; Donzel-Gargand, Olivier; Sopiha, Kostiantyn V.; Keller, Jan et al.

Ingår i ACS Applied Energy Materials, s. 1805-1814, 2021

• DOI för Investigation of AgGaSe₂ as a Wide Gap Solar Cell Absorber
• Ladda ner fulltext (pdf) av Investigation of AgGaSe₂ as a Wide Gap Solar Cell Absorber

Alkali Dispersion in (Ag,Cu)(In,Ga)Se-2 Thin Film Solar Cells-Insight from Theory and Experiment

Aboulfadl, Hisham; Sopiha, Kostiantyn; Keller, Jan; Larsen, Jes K et al.

Ingår i ACS Applied Materials and Interfaces, s. 7188-7199, 2021

• DOI för Alkali Dispersion in (Ag,Cu)(In,Ga)Se-2 Thin Film Solar Cells-Insight from Theory and Experiment
• Ladda ner fulltext (pdf) av Alkali Dispersion in (Ag,Cu)(In,Ga)Se-2 Thin Film Solar Cells-Insight from Theory and Experiment

Ultrathin Solar Cells Based on Atomic Layer Deposition of Cubic versus Orthorhombic Tin Monosulfide

Voznyi, Andrii A.; Bilousov, Oleksandr V.; Landeke-Wilsmark, Björn; Keller, Jan et al.

Ingår i ACS Applied Energy Materials, s. 8085-8097, 2021

• DOI för Ultrathin Solar Cells Based on Atomic Layer Deposition of Cubic versus Orthorhombic Tin Monosulfide
• Ladda ner fulltext (pdf) av Ultrathin Solar Cells Based on Atomic Layer Deposition of Cubic versus Orthorhombic Tin Monosulfide

Interface engineering of ultrathin Cu(In,Ga)Se₂ solar cells on reflective back contacts

Gouillart, Louis; Cattoni, Andrea; Chen, Wei-Chao; Goffard, Julie et al.

Ingår i Progress in Photovoltaics, s. 212-221, 2021

• DOI för Interface engineering of ultrathin Cu(In,Ga)Se₂ solar cells on reflective back contacts

Performance Limitations of Wide-Gap (Ag,Cu)(In,Ga)Se₂ Thin-Film Solar Cells

Keller, Jan; Pearson, Patrick; Shariati Nilsson, Nina; Stolt, Olof et al.

Ingår i Solar RRL, 2021

• DOI för Performance Limitations of Wide-Gap (Ag,Cu)(In,Ga)Se₂ Thin-Film Solar Cells
• Ladda ner fulltext (pdf) av Performance Limitations of Wide-Gap (Ag,Cu)(In,Ga)Se₂ Thin-Film Solar Cells

Comparison of Sulfur Incorporation into CuInSe(2)and CuGaSe(2)Thin-Film Solar Absorbers

Khavari, Faraz; Keller, Jan; Larsen, Jes K; Sopiha, Kostiantyn et al.

Ingår i Physica Status Solidi (A), 2020

• DOI för Comparison of Sulfur Incorporation into CuInSe(2)and CuGaSe(2)Thin-Film Solar Absorbers
• Ladda ner fulltext (pdf) av Comparison of Sulfur Incorporation into CuInSe(2)and CuGaSe(2)Thin-Film Solar Absorbers

Wide‐gap (Ag,Cu)(In,Ga)Se₂ solar cells with different buffer materials—A path to a better heterojunction

Keller, Jan; Sopiha, Kostiantyn V.; Stolt, Olof; Stolt, Lars et al.

Ingår i Progress in Photovoltaics, s. 237-250, 2020

• DOI för Wide‐gap (Ag,Cu)(In,Ga)Se₂ solar cells with different buffer materials—A path to a better heterojunction

Heavy Alkali Treatment of Post‐Sulfurized Cu(In,Ga)Se₂ Layers: Effect on Absorber Properties and Solar Cell Performance

Keller, Jan; Bilousov, Oleksandr. V.; Neerken, Janet; Wallin, Erik et al.

Ingår i Solar RRL, 2020

• DOI för Heavy Alkali Treatment of Post‐Sulfurized Cu(In,Ga)Se₂ Layers: Effect on Absorber Properties and Solar Cell Performance
• Ladda ner fulltext (pdf) av Heavy Alkali Treatment of Post‐Sulfurized Cu(In,Ga)Se₂ Layers: Effect on Absorber Properties and Solar Cell Performance

On the Paramount Role of Absorber Stoichiometry in (Ag,Cu)(In,Ga)Se₂ Wide‐Gap Solar Cells

Keller, Jan; Stolt, Lars; Sopiha, Kostiantyn; Larsen, Jes K et al.

Ingår i Solar RRL, 2020

• DOI för On the Paramount Role of Absorber Stoichiometry in (Ag,Cu)(In,Ga)Se₂ Wide‐Gap Solar Cells
• Ladda ner fulltext (pdf) av On the Paramount Role of Absorber Stoichiometry in (Ag,Cu)(In,Ga)Se₂ Wide‐Gap Solar Cells

Atomic Layer Deposition of Ternary Compounds on Cu(In,Ga)Se₂: An In Situ Quartz Crystal Microbalance Study

Larsson, Fredrik; Stolt, Lars; Hultqvist, Adam; Edoff, Marika et al.

Ingår i ACS Applied Energy Materials, s. 7208-7215, 2020

• DOI för Atomic Layer Deposition of Ternary Compounds on Cu(In,Ga)Se₂: An In Situ Quartz Crystal Microbalance Study

Amorphous tin-gallium oxide buffer layers in (Ag,Cu)(In,Ga)Se₂ solar cells

Larsson, Fredrik; Keller, Jan; Olsson, Jörgen; Donzel-Gargand, Olivier et al.

Ingår i Solar Energy Materials and Solar Cells, 2020

• DOI för Amorphous tin-gallium oxide buffer layers in (Ag,Cu)(In,Ga)Se₂ solar cells
• Ladda ner fulltext (pdf) av Amorphous tin-gallium oxide buffer layers in (Ag,Cu)(In,Ga)Se₂ solar cells

Close-spaced sublimation of SnS absorber layers and SnS/CdS heterojunction solar cells with Mo and Ti back metal contacts

Voznyi, Andrii; Kosyak, Volodymyr; Yeromenko, Yurii; Keller, Jan et al.

Ingår i Thin Solid Films, 2020

• DOI för Close-spaced sublimation of SnS absorber layers and SnS/CdS heterojunction solar cells with Mo and Ti back metal contacts

Reflective Back Contacts for Ultrathin Cu(In,Ga)Se₂-Based Solar Cells

Gouillart, Louis; Chen, Wei-Chao; Cattoni, Andrea; Goffard, Julie et al.

Ingår i IEEE Journal of Photovoltaics, s. 250-254, 2020

• DOI för Reflective Back Contacts for Ultrathin Cu(In,Ga)Se₂-Based Solar Cells

Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorbers

Sopiha, Kostiantyn; Larsen, Jes K; Donzel-Gargand, Olivier; Khavari, Faraz et al.

Ingår i Journal of Materials Chemistry A, s. 8740-8751, 2020

• DOI för Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorbers
• Ladda ner fulltext (pdf) av Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorbers

Antimony-Doped Tin Oxide as Transparent Back Contact in Cu₂ZnSnS₄ Thin-Film Solar Cells

Englund, Sven; Kubart, Tomas; Keller, Jan; Moro, Marcos V. et al.

Ingår i Physica Status Solidi (A), 2019

• DOI för Antimony-Doped Tin Oxide as Transparent Back Contact in Cu₂ZnSnS₄ Thin-Film Solar Cells
• Ladda ner fulltext (pdf) av Antimony-Doped Tin Oxide as Transparent Back Contact in Cu₂ZnSnS₄ Thin-Film Solar Cells

Germanium Incorporation in Cu₂ZnSnS₄ and Formation of a Sn–Ge Gradient

Saini, Nishant; Larsen, Jes K.; Sopiha, Kostiantyn V.; Keller, Jan et al.

Ingår i Physica Status Solidi (A), 2019

• DOI för Germanium Incorporation in Cu₂ZnSnS₄ and Formation of a Sn–Ge Gradient
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Effect of Cu content on post‐sulfurization of Cu(In,Ga)Se₂ films and corresponding solar cell performance

Keller, Jan; Bilousov, Oleksandr V.; Wallin, Erik; Lundberg, Olle et al.

Ingår i Physica Status Solidi (A), 2019

• DOI för Effect of Cu content on post‐sulfurization of Cu(In,Ga)Se₂ films and corresponding solar cell performance

Atomic layer deposition of amorphous tin-gallium oxide films

Larsson, Fredrik; Keller, Jan; Primetzhofer, Daniel; Riekehr, Lars et al.

Ingår i Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films, 2019

• DOI för Atomic layer deposition of amorphous tin-gallium oxide films
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Effect of NaF pre-cursor on alumina and hafnia rear contact passivation layers in ultra-thin Cu(In,Ga)Se₂ solar cells

Ledinek, Dorothea; Keller, Jan; Hägglund, Carl; Chen, Wei-Chao et al.

Ingår i Thin Solid Films, s. 156-164, 2019

• DOI för Effect of NaF pre-cursor on alumina and hafnia rear contact passivation layers in ultra-thin Cu(In,Ga)Se₂ solar cells

Microstructural Characterization of Sulfurization Effects in Cu(In,Ga)Se-2 Thin Film Solar Cells

Aboulfadl, Hisham; Keller, Jan; Larsen, Jes K; Thuvander, Mattias et al.

Ingår i Microscopy and Microanalysis, s. 532-538, 2019

• DOI för Microstructural Characterization of Sulfurization Effects in Cu(In,Ga)Se-2 Thin Film Solar Cells

Effect of different Na supply methods on thin Cu(In,Ga)Se₂ solar cells with Al₂O₃ rear passivation layers

Ledinek, Dorothea; Donzel-Gargand, Olivier; Sköld, Markus; Keller, Jan et al.

Ingår i Solar Energy Materials and Solar Cells, s. 160-169, 2018

• DOI för Effect of different Na supply methods on thin Cu(In,Ga)Se₂ solar cells with Al₂O₃ rear passivation layers
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Atomic layer deposition of Zn(O,S) buffer layers for Cu(In,Ga)Se₂ solar cells with KF post-deposition treatment

Larsson, Fredrik; Donzel-Gargand, Olivier; Keller, Jan; Edoff, Marika et al.

Ingår i Solar Energy Materials and Solar Cells, s. 8-15, 2018

• DOI för Atomic layer deposition of Zn(O,S) buffer layers for Cu(In,Ga)Se₂ solar cells with KF post-deposition treatment

Using hydrogen‐doped In₂O₃ films as a transparent back contact in (Ag,Cu)(In,Ga)Se₂ solar cells

Keller, Jan; Shariati, Masumeh-Nina; Aijaz, Asim; Riekehr, Lars et al.

Ingår i Progress in Photovoltaics, s. 159-170, 2018

• DOI för Using hydrogen‐doped In₂O₃ films as a transparent back contact in (Ag,Cu)(In,Ga)Se₂ solar cells

Deep surface Cu depletion induced by K in high-efficiency Cu(In,Ga)Se2 solar cell absorbers

Donzel-Gargand, Olivier; Thersleff, Thomas; Keller, Jan; Törndahl, Tobias et al.

Ingår i Progress in Photovoltaics, s. 730-739, 2018

• DOI för Deep surface Cu depletion induced by K in high-efficiency Cu(In,Ga)Se2 solar cell absorbers
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Bifacial Cu(In,Ga)Se₂ solar cells using hydrogen‐doped In₂O₃ films as a transparent back contact

Keller, Jan; Chen, Wei-Chao; Riekehr, Lars; Kubart, Tomas et al.

Ingår i Progress in Photovoltaics, s. 846-858, 2018

• DOI för Bifacial Cu(In,Ga)Se₂ solar cells using hydrogen‐doped In₂O₃ films as a transparent back contact

Sulfurization of Co-Evaporated Cu(In,Ga)Se-2 as a Postdeposition Treatment

Larsen, Jes K; Keller, Jan; Lundberg, Olle; Jarmar, Tobias et al.

Ingår i IEEE Journal of Photovoltaics, s. 604-610, 2018

• DOI för Sulfurization of Co-Evaporated Cu(In,Ga)Se-2 as a Postdeposition Treatment
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Effect of KF absorber treatment on the functionality of different transparent conductive oxide layers in CIGSe solar cells

Keller, Jan; Chalvet, Francis; Joel, Jonathan; Aijaz, Asim et al.

Ingår i Progress in Photovoltaics, s. 13-23, 2018

• DOI för Effect of KF absorber treatment on the functionality of different transparent conductive oxide layers in CIGSe solar cells

Light-induced changes in the minority carrier diffusion length of Cu(In,Ga) Se-2 absorber material

Heise, S. J.; Gerliz, V.; Hammer, M. S.; Ohland, J. et al.

Ingår i Solar Energy Materials and Solar Cells, s. 270-276, 2017

• DOI för Light-induced changes in the minority carrier diffusion length of Cu(In,Ga) Se-2 absorber material

Investigation of the SnS/Cu₂ZnSnS₄ interfaces in Kesterite Thin-Film Solar Cells

Ren, Yi; Richter, Michael; Keller, Jan; Redinger, Alex et al.

Ingår i ACS Energy Letters, s. 976-981, 2017

• DOI för Investigation of the SnS/Cu₂ZnSnS₄ interfaces in Kesterite Thin-Film Solar Cells

Record 1.0 V open-circuit voltage in wide band gap chalcopyrite solar cells

Larsson, Fredrik; Shariati, M. Nina; Keller, Jan; Frisk, Christopher et al.

Ingår i Progress in Photovoltaics, s. 755-763, 2017

• DOI för Record 1.0 V open-circuit voltage in wide band gap chalcopyrite solar cells

Evaluation of different intrinsic ZnO and transparent conducting oxide layer combinations in Cu(In,Ga)Se₂ solar cells

Larsson, Fredrik; Keller, Jan; Edoff, Marika; Törndahl, Tobias

Ingår i Thin Solid Films, s. 235-238, 2017

• DOI för Evaluation of different intrinsic ZnO and transparent conducting oxide layer combinations in Cu(In,Ga)Se₂ solar cells

CdS and Zn1-xSnxOy buffer layers for CIGS solar cells

Salome, P. M. P.; Keller, Jan; Törndahl, Tobias; Teixeira, J. P. et al.

Ingår i Solar Energy Materials and Solar Cells, s. 272-281, 2017

• DOI för CdS and Zn1-xSnxOy buffer layers for CIGS solar cells

On the beneficial effect of Al₂O₃ front contact passivation in Cu(In,Ga)Se₂ solar cells

Keller, Jan; Gustavsson, Fredrik; Stolt, Lars; Edoff, Marika et al.

Ingår i Solar Energy Materials and Solar Cells, s. 189-196, 2017

• DOI för On the beneficial effect of Al₂O₃ front contact passivation in Cu(In,Ga)Se₂ solar cells

Cd and Cu Interdiffusion in Cu(In, Ga) Se-2/CdS Hetero-Interfaces

Salome, Pedro M. P.; Ribeiro-Andrade, Rodrigo; Teixeira, Jennifer P.; Keller, Jan et al.

Ingår i IEEE Journal of Photovoltaics, s. 858-863, 2017

• DOI för Cd and Cu Interdiffusion in Cu(In, Ga) Se-2/CdS Hetero-Interfaces

Influence of CdS and ZnSnO Buffer Layers on the Photoluminescence of Cu(In,Ga)Se-2 Thin Films

Salome, Pedro M. P.; Teixeira, Jennifer P.; Keller, Jan; Törndahl, Tobias et al.

Ingår i IEEE Journal of Photovoltaics, s. 670-675, 2017

• DOI för Influence of CdS and ZnSnO Buffer Layers on the Photoluminescence of Cu(In,Ga)Se-2 Thin Films

Atomic layer deposition of In₂O₃ transparent conductive oxide layers for application in Cu(In,Ga)Se₂ solar cells with different buffer layers

Keller, Jan; Stolt, Lars; Edoff, Marika; Törndahl, Tobias

Ingår i Physica Status Solidi (A), s. 1541-1552, 2016

• DOI för Atomic layer deposition of In₂O₃ transparent conductive oxide layers for application in Cu(In,Ga)Se₂ solar cells with different buffer layers

Direct comparison of atomic layer deposition and sputtering of In2O3:H used as transparent conductive oxide layer in CuIn1-xGaxSe2 thin film solar cells

Keller, Jan; Aijaz, Asim; Gustavsson, Fredrik; Kubart, Tomas et al.

Ingår i Solar Energy Materials and Solar Cells, s. 757-764, 2016

• DOI för Direct comparison of atomic layer deposition and sputtering of In2O3:H used as transparent conductive oxide layer in CuIn1-xGaxSe2 thin film solar cells

Deposition temperature induced conduction band changes in zinc tin oxide buffer layers for Cu(In,Ga)Se₂ solar cells

Lindahl, Johan; Keller, Jan; Donzel-Gargand, Olivier; Szaniawski, Piotr et al.

Ingår i Solar Energy Materials and Solar Cells, s. 684-690, 2016

• DOI för Deposition temperature induced conduction band changes in zinc tin oxide buffer layers for Cu(In,Ga)Se₂ solar cells
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Potential gain in photocurrent generation for Cu(In,Ga)Se2 solar cells by using In2O3 as a transparent conductive oxide layer

Keller, Jan; Lindahl, Johan; Edoff, Marika; Stolt, Lars et al.

Ingår i Progress in Photovoltaics, s. 102-107, 2016

• DOI för Potential gain in photocurrent generation for Cu(In,Ga)Se2 solar cells by using In2O3 as a transparent conductive oxide layer

Reduced interface recombination in Cu2ZnSnS4 solar cells with atomic layer deposition Zn1-xSnxO buffer layers

Platzer-Björkman, Charlotte; Frisk, Christoper; Larsen, Jes; Ericson, Tove et al.

Ingår i Applied Physics Letters, 2015

• DOI för Reduced interface recombination in Cu2ZnSnS4 solar cells with atomic layer deposition Zn1-xSnxO buffer layers
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Wide band-gap Cu-chalcopyrite/In-based transparent conductive oxide interfaces: What affects the gallium oxide formation and its properties?

Wilks, Regan G.; Demling, Angelika; Efimenko, Anna; Gorgoi, Mihaela et al.

Ingår i 2025 IEEE 53rd Photovoltaic Specialists Conference (PVSC), s. 1133-1133, 2025

• DOI för Wide band-gap Cu-chalcopyrite/In-based transparent conductive oxide interfaces: What affects the gallium oxide formation and its properties?

Investigating the Role of Ag and Ga Content in the Stability of Wide-Gap (Ag,Cu)(In,Ga)Se2 Thin Film Solar Cells

Pearson, Patrick; Keller, Jan; Platzer-Björkman, Charlotte

Ingår i 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 2023

• DOI för Investigating the Role of Ag and Ga Content in the Stability of Wide-Gap (Ag,Cu)(In,Ga)Se2 Thin Film Solar Cells

Ultrathin Cu(In,Ga)Se2 solar cells with Ag-based reflective back contacts

Gouillart, Louis; Cattoni, Andrea; Chen, Wei-Chao; Zeitouny, Joya et al.

Ingår i 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), s. 1481-1484, 2020

• DOI för Ultrathin Cu(In,Ga)Se2 solar cells with Ag-based reflective back contacts

ALD of Zn(O,S) buffer layers in KF post-deposition treated CIGS solar cells

Larsson, Fredrik; Keller, Jan; Edoff, Marika; Törndahl, Tobias

2017

Cu-depleted patches induced by presence of K during growth of CIGS absorbers

Donzel-Gargand, Olivier; Thersleff, T.; Keller, Jan; Törndahl, Tobias et al.

2017

• Ladda ner fulltext (pdf) av Cu-depleted patches induced by presence of K during growth of CIGS absorbers

Influence of CdS and Zn_xSn_1-xO_y Buffer Layers on the Photoluminescence of Cu(In,Ga)Se₂ Thin Films

Leitao, J. P.; Teixeira, J. P.; Keller, Jan; Törndahl, Tobias et al.

Ingår i 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), s. 3068-3071, 2016

• DOI för Influence of CdS and Zn_xSn_1-xO_y Buffer Layers on the Photoluminescence of Cu(In,Ga)Se₂ Thin Films