Kostiantyn Sopiha

Functional off-stoichiometry in Cu(In,Ga)Se₂. Part I: topotactic continuum of ordered defect compounds

Sopiha, Kostiantyn; Keller, Jan; Persson, Clas; Scragg, Jonathan J. et al.

Part of Journal of Materials Chemistry A, p. 8072-8087, 2026

• DOI for Functional off-stoichiometry in Cu(In,Ga)Se₂. Part I: topotactic continuum of ordered defect compounds
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Functional off-stoichiometry in Cu(In,Ga)Se₂. Part II: electronic properties in a wide range of compositions

Sopiha, Kostiantyn; Keller, Jan; Persson, Clas; Scragg, Jonathan J. et al.

Part of Journal of Materials Chemistry A, p. 8088-8099, 2026

• DOI for Functional off-stoichiometry in Cu(In,Ga)Se₂. Part II: electronic properties in a wide range of compositions
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Thermodynamic insights into the Ba–S system for the formation of BaZrS₃ perovskites and other Ba sulfides

Comparotto, Corrado; Whalley, Lucy; Sopiha, Kostiantyn; Frost, Robert J. W. et al.

Part of Journal of Materials Chemistry A, p. 9983-9991, 2025

• DOI for Thermodynamic insights into the Ba–S system for the formation of BaZrS₃ perovskites and other Ba sulfides
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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.

Part of Progress in Photovoltaics, p. 735-746, 2025

• DOI for Light-Soaking Effects in High-Efficiency Cu(In,Ga)Se₂ and (Ag,Cu)(In,Ga)Se₂ Solar Cells
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Neutral supercells for charged impurities by explicit acceptor/donor compensation - Defects in diamond

Löfgren, Robin; Sopiha, Kostiantyn; Öberg, Sven; Larsson, J. Andreas

Part of Computational materials science, 2025

• DOI for Neutral supercells for charged impurities by explicit acceptor/donor compensation - Defects in diamond
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Functional off-stoichiometry in Cu(In,Ga)Se₂. Part I: topotactic continuum of ordered defect compounds

Sopiha, Kostiantyn; Keller, Jan; Persson, Clas; Scragg, Jonathan J. et al.

Part of Journal of Materials Chemistry A, p. 8072-8087, 2026

• DOI for Functional off-stoichiometry in Cu(In,Ga)Se₂. Part I: topotactic continuum of ordered defect compounds
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Functional off-stoichiometry in Cu(In,Ga)Se₂. Part II: electronic properties in a wide range of compositions

Sopiha, Kostiantyn; Keller, Jan; Persson, Clas; Scragg, Jonathan J. et al.

Part of Journal of Materials Chemistry A, p. 8088-8099, 2026

• DOI for Functional off-stoichiometry in Cu(In,Ga)Se₂. Part II: electronic properties in a wide range of compositions
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Thermodynamic insights into the Ba–S system for the formation of BaZrS₃ perovskites and other Ba sulfides

Comparotto, Corrado; Whalley, Lucy; Sopiha, Kostiantyn; Frost, Robert J. W. et al.

Part of Journal of Materials Chemistry A, p. 9983-9991, 2025

• DOI for Thermodynamic insights into the Ba–S system for the formation of BaZrS₃ perovskites and other Ba sulfides
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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.

Part of Progress in Photovoltaics, p. 735-746, 2025

• DOI for Light-Soaking Effects in High-Efficiency Cu(In,Ga)Se₂ and (Ag,Cu)(In,Ga)Se₂ Solar Cells
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Neutral supercells for charged impurities by explicit acceptor/donor compensation - Defects in diamond

Löfgren, Robin; Sopiha, Kostiantyn; Öberg, Sven; Larsson, J. Andreas

Part of Computational materials science, 2025

• DOI for Neutral supercells for charged impurities by explicit acceptor/donor compensation - Defects in diamond
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Post‐deposition sulfurization of CuInSe₂ solar absorbers by employing sacrificial CuInS₂ precursor layers

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

Part of Physica Status Solidi (A), 2022

• DOI for Post‐deposition sulfurization of CuInSe₂ solar absorbers by employing sacrificial CuInS₂ precursor layers
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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.

Part of Faraday discussions, p. 357-374, 2022

• DOI for Off-stoichiometry in I-III-VI2 chalcopyrite absorbers: a comparative analysis of structures and stabilities
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Chalcogenide Perovskites: Tantalizing Prospects, Challenging Materials

Sopiha, Kostiantyn; Comparotto, Corrado; Márquez, José A.; Scragg, Jonathan J.

Part of Advanced Optical Materials, 2022

• DOI for Chalcogenide Perovskites: Tantalizing Prospects, Challenging Materials
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Experimental and Theoretical Study of Stable and Metastable Phases in Sputtered CuInS₂

Larsen, Jes K.; Sopiha, Kostiantyn V.; Persson, Clas; Platzer Björkman, Charlotte et al.

Part of Advanced Science, 2022

• DOI for Experimental and Theoretical Study of Stable and Metastable Phases in Sputtered CuInS₂
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Investigation of AgGaSe₂ as a Wide Gap Solar Cell Absorber

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

Part of ACS Applied Energy Materials, p. 1805-1814, 2021

• DOI for Investigation of AgGaSe₂ as a Wide Gap Solar Cell Absorber
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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.

Part of ACS Applied Materials and Interfaces, p. 7188-7199, 2021

• DOI for Alkali Dispersion in (Ag,Cu)(In,Ga)Se-2 Thin Film Solar Cells-Insight from Theory and Experiment
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Chemistry of Oxygen Ionosorption on SnO2 Surfaces

Sopiha, Kostiantyn; Malyi, Oleksandr; Persson, Clas; Wu, Ping

Part of ACS Applied Materials and Interfaces, p. 33664-33676, 2021

• DOI for Chemistry of Oxygen Ionosorption on SnO2 Surfaces
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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.

Part of Physica Status Solidi (A), 2020

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

Part of Progress in Photovoltaics, p. 237-250, 2020

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

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.

Part of Solar RRL, 2020

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

Part of Journal of Materials Chemistry A, p. 8740-8751, 2020

• DOI for Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorbers
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Germanium Incorporation in Cu₂ZnSnS₄ and Formation of a Sn–Ge Gradient

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

Part of Physica Status Solidi (A), 2019

• DOI for Germanium Incorporation in Cu₂ZnSnS₄ and Formation of a Sn–Ge Gradient
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Noble gas as a functional dopant in ZnO

Malyi, Oleksandr; Sopiha, Kostiantyn; Persson, Clas

Part of npj Computational Materials, 2019

• DOI for Noble gas as a functional dopant in ZnO
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Strong Interplay between Sodium and Oxygen in Kesterite Absorbers: Complex Formation, Incorporation, and Tailoring Depth Distributions

Grini, Sigbjörn; Sopiha, Kostiantyn; Ross, Nils; Liu, Xin et al.

Part of Advanced Energy Materials, 2019

• DOI for Strong Interplay between Sodium and Oxygen in Kesterite Absorbers: Complex Formation, Incorporation, and Tailoring Depth Distributions
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First-Principles Mapping of the Electronic Properties of Two-Dimensional Materials for Strain-Tunable Nanoelectronics

Sopiha, Kostiantyn V; Malyi, Oleksandr; Persson, Clas

Part of ACS APPLIED NANO MATERIALS, p. 5614-5624, 2019

• DOI for First-Principles Mapping of the Electronic Properties of Two-Dimensional Materials for Strain-Tunable Nanoelectronics

Energy, Phonon, and Dynamic Stability Criteria of Two-Dimensional Materials

Malyi, Oleksandr I.; Sopiha, Kostiantyn; Persson, Clas

Part of ACS Applied Materials and Interfaces, p. 24876-24884, 2019

• DOI for Energy, Phonon, and Dynamic Stability Criteria of Two-Dimensional Materials