Ute Cappel
Senior Lecturer/Associate Professor at Department of Physics and Astronomy; X-ray Photon Science; Condensed Matter Physics of Energy Materials
- Mobile phone:
- +46 70 335 91 55
- E-mail:
- ute.cappel@physics.uu.se
- Visiting address:
- Ångströmlaboratoriet, Regementsvägen 10
752 37 Uppsala - Postal address:
- Box 524
751 20 UPPSALA
Senior Lecturer/Associate Professor at Department of Physics and Astronomy; X-ray Photon Science
- Mobile phone:
- +46 70 335 91 55
- E-mail:
- ute.cappel@physics.uu.se
- Visiting address:
- Ångströmlaboratoriet, Regementsvägen 10
752 37 Uppsala - Postal address:
- Box 524
751 20 UPPSALA
Short presentation
I'm a fellow of the Wallenberg Initiative Materials Science for Sustainability (WISE) at the research program Condensed Matter Physics of Energy Materials in the division of X-ray Photon Science.
Opportunities
If you are interested in doing a bachelor/master project in my group, please email me!
See more information about my research group below.
Biography
Short CV
Master in Science (MSci) in Chemical Physics, University of Bristol, United Kingdom, 2007
PhD in Chemistry with a Specialisation in Physical Chemistry, Uppsala University, Sweden, 2011, Characterisation of Organic Dyes for Solid State Dye-Sensitized Solar Cells
Docent in Chemistry with specialization in Inorganic Materials Chemistry, KTH, Sweden, 2018
Intra-European Marie Curie fellow, Department of Chemistry, Imperial College, United Kingdom, 2012-2014
Postdoctoral Researcher at the Division of Molecular and Condensed Matter Physics, Department of Physics and Astronomy, Uppsala University, Sweden, 2014-2017
Assistant Professor at the Division of Applied Physical Chemistry, Department of Chemistry, KTH - Royal Institute of Technology, Sweden, 2017-2020
Associate Professor at the Division of Applied Physical Chemistry, Department of Chemistry, KTH - Royal Institute of Technology, Sweden, from 2020-2023
Current Position: Associate Professor and WISE (Wallenberg Initiative Materials Science for Sustainability) fellow at the Division of X-ray Photon Science, Department of Physics and Astronomy, Uppsala University, Sweden, from 2023
Publications: A complete and updated list of my publications can be found on Google Scholar.
Research
Research Interests
My research focuses on characterising materials and processes in solar cells and other optoelectronic devices. I am particularly interested in developing and using time‑resolved and operando photoelectron spectroscopy to observe how the electronic structure changes during the energy conversion process.
Opportunities
If you are interested in doing a master/bachelor project in my group, please email me!
Group Members
Karen Radetzky (PhD student)
Brian Rydgren (PhD student)
Julia Prumbs (PhD student)
Trupthi Chonamada (postdoc)
Alberto García-Fernández (visiting researcher)
Former PhD students
Sebastian Svanström (PhD thesis)
Tamara Sloboda (PhD thesis)
Birgit Kammlander (PhD thesis)

Publications
Recent publications
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Part of Inorganic Chemistry Frontiers, p. 7282-7293, 2025
- DOI for Tuning multifunctional stimuli-responsive behaviour through halogen exchange in hybrid ionic [(CH3CH2)3N(CH2X)]2[MnCl4] (X = Cl, Br)
- Download full text (pdf) of Tuning multifunctional stimuli-responsive behaviour through halogen exchange in hybrid ionic [(CH3CH2)3N(CH2X)]2[MnCl4] (X = Cl, Br)
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Part of ACS Energy Letters, p. 3533-3543, 2025
- DOI for Interfacial Chemistry Limits the Stability of Deep Blue Perovskite LEDs Revealed by Operando Characterization
- Download full text (pdf) of Interfacial Chemistry Limits the Stability of Deep Blue Perovskite LEDs Revealed by Operando Characterization
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Part of ACS Applied Energy Materials, p. 8467-8478, 2025
- DOI for Interfacial Chemistry between Formamidinium Lead Trihalide Perovskites and Atomic-Layer-Deposited Tin Oxide
- Download full text (pdf) of Interfacial Chemistry between Formamidinium Lead Trihalide Perovskites and Atomic-Layer-Deposited Tin Oxide
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Part of RSC Advances, p. 16894-16900, 2025
- DOI for Ultrafast charge transfer dynamics in lead sulfide quantum dots probed with resonant Auger spectroscopy at the lead M-edge
- Download full text (pdf) of Ultrafast charge transfer dynamics in lead sulfide quantum dots probed with resonant Auger spectroscopy at the lead M-edge
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Investigating charge dynamics at lead halide perovskite single crystal surfaces
Part of Journal of Physics, 2025
- DOI for Investigating charge dynamics at lead halide perovskite single crystal surfaces
- Download full text (pdf) of Investigating charge dynamics at lead halide perovskite single crystal surfaces
All publications
Articles in journal
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Part of Inorganic Chemistry Frontiers, p. 7282-7293, 2025
- DOI for Tuning multifunctional stimuli-responsive behaviour through halogen exchange in hybrid ionic [(CH3CH2)3N(CH2X)]2[MnCl4] (X = Cl, Br)
- Download full text (pdf) of Tuning multifunctional stimuli-responsive behaviour through halogen exchange in hybrid ionic [(CH3CH2)3N(CH2X)]2[MnCl4] (X = Cl, Br)
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Part of ACS Energy Letters, p. 3533-3543, 2025
- DOI for Interfacial Chemistry Limits the Stability of Deep Blue Perovskite LEDs Revealed by Operando Characterization
- Download full text (pdf) of Interfacial Chemistry Limits the Stability of Deep Blue Perovskite LEDs Revealed by Operando Characterization
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Part of ACS Applied Energy Materials, p. 8467-8478, 2025
- DOI for Interfacial Chemistry between Formamidinium Lead Trihalide Perovskites and Atomic-Layer-Deposited Tin Oxide
- Download full text (pdf) of Interfacial Chemistry between Formamidinium Lead Trihalide Perovskites and Atomic-Layer-Deposited Tin Oxide
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Part of RSC Advances, p. 16894-16900, 2025
- DOI for Ultrafast charge transfer dynamics in lead sulfide quantum dots probed with resonant Auger spectroscopy at the lead M-edge
- Download full text (pdf) of Ultrafast charge transfer dynamics in lead sulfide quantum dots probed with resonant Auger spectroscopy at the lead M-edge
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Investigating charge dynamics at lead halide perovskite single crystal surfaces
Part of Journal of Physics, 2025
- DOI for Investigating charge dynamics at lead halide perovskite single crystal surfaces
- Download full text (pdf) of Investigating charge dynamics at lead halide perovskite single crystal surfaces
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Part of Journal of Materials Chemistry A, p. 31432-31444, 2024
- DOI for Effect of different halide-based ligands on the passivation and charge carrier dynamics in AgBiS2 nanocrystal solar cells
- Download full text (pdf) of Effect of different halide-based ligands on the passivation and charge carrier dynamics in AgBiS2 nanocrystal solar cells
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Part of Nanoscale, p. 21002-21010, 2024
- DOI for Interface-resolved photovoltage generation dynamics and band structure evolution in a PbS quantum dot solar cell
- Download full text (pdf) of Interface-resolved photovoltage generation dynamics and band structure evolution in a PbS quantum dot solar cell
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Part of Energy & Environmental Science, p. 4714-4724, 2024
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Part of Physical Chemistry, Chemical Physics - PCCP, p. 1000-1010, 2024
- DOI for Composition dependence of X-ray stability and degradation mechanisms at lead halide perovskite single crystal surfaces
- Download full text (pdf) of Composition dependence of X-ray stability and degradation mechanisms at lead halide perovskite single crystal surfaces
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Interface Energy Alignment between Lead Halide Perovskite Single Crystals and TIPS-Pentacene
Part of Inorganic Chemistry, p. 15412-15420, 2023
- DOI for Interface Energy Alignment between Lead Halide Perovskite Single Crystals and TIPS-Pentacene
- Download full text (pdf) of Interface Energy Alignment between Lead Halide Perovskite Single Crystals and TIPS-Pentacene
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Part of The Journal of Physical Chemistry C, p. 23733-23742, 2023
- DOI for Charge Transfer in the P(g42T-T):BBL Organic Polymer Heterojunction Measured with Core-Hole Clock Spectroscopy
- Download full text (pdf) of Charge Transfer in the P(g42T-T):BBL Organic Polymer Heterojunction Measured with Core-Hole Clock Spectroscopy
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Part of ACS Applied Materials and Interfaces, p. 12485-12494, 2023
- DOI for Direct measurements of interfacial photovoltage and band alignment in perovskite solar cells using hard X-ray photoelectron spectroscopy
- Download full text (pdf) of Direct measurements of interfacial photovoltage and band alignment in perovskite solar cells using hard X-ray photoelectron spectroscopy
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The Complex Degradation Mechanism of Copper Electrodes on Lead Halide Perovskites
Part of ACS Materials Science Au, p. 301-312, 2022
- DOI for The Complex Degradation Mechanism of Copper Electrodes on Lead Halide Perovskites
- Download full text (pdf) of The Complex Degradation Mechanism of Copper Electrodes on Lead Halide Perovskites
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Part of RSC Advances, p. 31671-31679, 2022
- DOI for Unravelling the ultrafast charge dynamics in PbS quantum dots through resonant Auger mapping of the sulfur K-edge
- Download full text (pdf) of Unravelling the ultrafast charge dynamics in PbS quantum dots through resonant Auger mapping of the sulfur K-edge
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Thermal degradation of lead halide perovskite surfaces
Part of Chemical Communications, p. 13523-13526, 2022
- DOI for Thermal degradation of lead halide perovskite surfaces
- Download full text (pdf) of Thermal degradation of lead halide perovskite surfaces
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Part of Physical Chemistry, Chemical Physics - PCCP, p. 12645-12657, 2022
- DOI for The impact of chemical composition of halide surface ligands on the electronic structure and stability of lead sulfide quantum dot materials
- Download full text (pdf) of The impact of chemical composition of halide surface ligands on the electronic structure and stability of lead sulfide quantum dot materials
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Spatial microheterogeneity in the valence band of mixed halide hybrid perovskite materials
Part of Chemical Science, p. 9285-9294, 2022
- DOI for Spatial microheterogeneity in the valence band of mixed halide hybrid perovskite materials
- Download full text (pdf) of Spatial microheterogeneity in the valence band of mixed halide hybrid perovskite materials
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Part of ACS Applied Energy Materials, p. 1460-1470, 2022
- DOI for Effect of the Ancillary Ligand on the Performance of Heteroleptic Cu(I) Diimine Complexes as Dyes in Dye-Sensitized Solar Cells
- Download full text (pdf) of Effect of the Ancillary Ligand on the Performance of Heteroleptic Cu(I) Diimine Complexes as Dyes in Dye-Sensitized Solar Cells
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X-ray stability and degradation mechanism of lead halide perovskites and lead halides.
Part of Physical Chemistry, Chemical Physics - PCCP, p. 12479-12489, 2021
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Part of The Journal of Physical Chemistry C, p. 8360-8368, 2021
- DOI for Sensitivity of Nitrogen K-Edge X-ray Absorption to Halide Substitution and Thermal Fluctuations in Methylammonium Lead-Halide Perovskites
- Download full text (pdf) of Sensitivity of Nitrogen K-Edge X-ray Absorption to Halide Substitution and Thermal Fluctuations in Methylammonium Lead-Halide Perovskites
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Part of ACS Applied Energy Materials, p. 510-522, 2021
- DOI for SnOx Atomic Layer Deposition on Bare Perovskite: An Investigation of Initial Growth Dynamics, Interface Chemistry, and Solar Cell Performance
- Download full text (pdf) of SnOx Atomic Layer Deposition on Bare Perovskite: An Investigation of Initial Growth Dynamics, Interface Chemistry, and Solar Cell Performance
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Part of Scientific Reports, 2020
- DOI for A method for studying pico to microsecond time-resolved core-level spectroscopy used to investigate electron dynamics in quantum dots
- Download full text (pdf) of A method for studying pico to microsecond time-resolved core-level spectroscopy used to investigate electron dynamics in quantum dots
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2-Terminal CIGS-perovskite tandem cells: A layer by layer exploration
Part of Solar Energy, p. 270-288, 2020
- DOI for 2-Terminal CIGS-perovskite tandem cells: A layer by layer exploration
- Download full text (pdf) of 2-Terminal CIGS-perovskite tandem cells: A layer by layer exploration
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Elucidating and Mitigating Degradation Processes in Perovskite Light-Emitting Diodes
Part of Advanced Energy Materials, 2020
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Part of ACS Applied Energy Materials, p. 4331-4337, 2020
- DOI for Simple Method for Efficient Slot-Die Coating of MAPbI(3) Perovskite Thin Films in Ambient Air Conditions
- Download full text (pdf) of Simple Method for Efficient Slot-Die Coating of MAPbI(3) Perovskite Thin Films in Ambient Air Conditions
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Tailoring Ultra-fast Charge Transfer in MoS2
Part of Physical Chemistry, Chemical Physics - PCCP, p. 10335-10342, 2020
- DOI for Tailoring Ultra-fast Charge Transfer in MoS2
- Download full text (pdf) of Tailoring Ultra-fast Charge Transfer in MoS2
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Part of Journal of Materials Chemistry A, p. 10729-10738, 2019
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Part of Chemistry of Materials, p. 4081-4091, 2019
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Extending the Compositional Space of Mixed Lead Halide Perovskites by Cs, Rb, K, and Na Doping
Part of The Journal of Physical Chemistry C, p. 13548-13557, 2018
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Effect of halide ratio and Cs+ addition on the photochemical stability of lead halide perovskites
Part of Journal of Materials Chemistry A, p. 22134-22144, 2018
- DOI for Effect of halide ratio and Cs+ addition on the photochemical stability of lead halide perovskites
- Download full text (pdf) of Effect of halide ratio and Cs+ addition on the photochemical stability of lead halide perovskites
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Part of Sustainable Energy & Fuels, p. 606-615, 2018
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Part of Advanced Energy Materials, 2018
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Femtosecond and Attosecond Electron-Transfer Dynamics in PCPDTBT: PCBM Bulk Heterojunctions
Part of The Journal of Physical Chemistry C, p. 12605-12614, 2018
- DOI for Femtosecond and Attosecond Electron-Transfer Dynamics in PCPDTBT: PCBM Bulk Heterojunctions
- Download full text (pdf) of Femtosecond and Attosecond Electron-Transfer Dynamics in PCPDTBT: PCBM Bulk Heterojunctions
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Part of Journal of Power Sources, p. 70-79, 2018
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Defect-Induced Water Bilayer Growth on Anatase TiO2(101)
Part of Langmuir, p. 10856-10864, 2018
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First layer water phases on anatase TiO2(101)
Part of Surface Science, p. 25-31, 2018
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Electronic Structure Characterization of Cross-Linked Sulfur Polymers
Part of ChemPhysChem, p. 1041-1047, 2018
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Low Dose Photoelectron Spectroscopy at BESSY II: Electronic structure of matter in its native state
Part of Journal of Electron Spectroscopy and Related Phenomena, p. 68-78, 2018
- DOI for Low Dose Photoelectron Spectroscopy at BESSY II: Electronic structure of matter in its native state
- Download full text (pdf) of Low Dose Photoelectron Spectroscopy at BESSY II: Electronic structure of matter in its native state
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Part of ACS Applied Materials and Interfaces, p. 34970-34978, 2017
- DOI for Partially Reversible Photoinduced Chemical Changes in a Mixed-Ion Perovskite Material for Solar Cells
- Download full text (pdf) of Partially Reversible Photoinduced Chemical Changes in a Mixed-Ion Perovskite Material for Solar Cells
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Part of The Journal of Physical Chemistry C, p. 26655-26666, 2017
- DOI for Valence Level Character in a Mixed Perovskite Material and Determination of the Valence Band Maximum from Photoelectron Spectroscopy: Variation with Photon Energy
- Download full text (pdf) of Valence Level Character in a Mixed Perovskite Material and Determination of the Valence Band Maximum from Photoelectron Spectroscopy: Variation with Photon Energy
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Part of ACS Applied Materials and Interfaces, p. 33470-33477, 2017
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Part of Chemistry of Materials, p. 3589-3596, 2017
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Part of Scientific Reports, 2016
- DOI for Evidence for photo-induced charge separation between dye molecules adsorbed to aluminium oxide surfaces
- Download full text (pdf) of Evidence for photo-induced charge separation between dye molecules adsorbed to aluminium oxide surfaces
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Part of Physical Chemistry, Chemical Physics - PCCP, p. 21921-21929, 2016
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Part of Review of Scientific Instruments, 2015
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Energy level alignment in TiO2/metal sulfide/polymer interfaces for solar cell applications
Part of Physical Chemistry, Chemical Physics - PCCP, p. 17099-17107, 2014
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Part of Angewandte Chemie International Edition, p. 12047-12051, 2013
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Comparing spiro-OMeTAD and P3HT hole conductors in efficient solid state dye-sensitized solar cells
Part of Physical Chemistry, Chemical Physics - PCCP, p. 779-789, 2012
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Part of The Journal of Physical Chemistry C, p. 4345-4358, 2011
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Energy Alignment and Surface Dipoles of Rylene Dyes adsorbed to TiO2 nanoparticles
Part of Physical Chemistry, Chemical Physics - PCCP, p. 14767-14774, 2011
- DOI for Energy Alignment and Surface Dipoles of Rylene Dyes adsorbed to TiO2 nanoparticles
- Download full text (pdf) of Energy Alignment and Surface Dipoles of Rylene Dyes adsorbed to TiO2 nanoparticles
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Part of The Journal of Physical Chemistry C, p. 10551-10558, 2010
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The influence of local electric fields on photoinduced absorption in dye-sensitized solar cells.
Part of Journal of the American Chemical Society, p. 9096-9101, 2010
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Part of The Journal of Physical Chemistry C, p. 6275-6281, 2009
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A broadly absorbing perylene dye for solid-state dye-sensitized solar cells.
Part of The Journal of Physical Chemistry C, p. 14595-14597, 2009
Articles, review/survey
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Characterization techniques for dye-sensitized solar cells
Part of Energy & Environmental Science, p. 672-709, 2017