Dorothee Menzel
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View article: Minimizing Recombination at the Perovskite/C<sub>60</sub> Interface through a Volatile Highly Dense Molecular Interlayer
Minimizing Recombination at the Perovskite/C<sub>60</sub> Interface through a Volatile Highly Dense Molecular Interlayer Open
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View article: Unveiling the Impact of C<sub>60</sub>–O<sub>2</sub> Interaction on the Performance and Characterization of Perovskite Solar Cells
Unveiling the Impact of C<sub>60</sub>–O<sub>2</sub> Interaction on the Performance and Characterization of Perovskite Solar Cells Open
C 60 is the prevalent electron‐transport layer (ETL) in high‐efficiency p‐i‐n perovskite single‐junction and multi‐junction solar cells. Here, it is demonstrated that the exposure of the C 60 ETL to ambient O 2 results in significantly inc…
View article: Toward Understanding the Built-in Field in Perovskite Solar Cells through Layer-by-Layer Surface Photovoltage Measurements
Toward Understanding the Built-in Field in Perovskite Solar Cells through Layer-by-Layer Surface Photovoltage Measurements Open
The built-in voltage (VBI) is a key parameter for solar cell operation, yet in perovskite solar cells the distribution, magnitude, and origin of the VBI remains poorly understood. In this work, we systematically studied the VBI in pin-type…
View article: Correlation of Band Bending and Ionic Losses in 1.68 eV Wide Band Gap Perovskite Solar Cells
Correlation of Band Bending and Ionic Losses in 1.68 eV Wide Band Gap Perovskite Solar Cells Open
Perovskite solar cells (PSCs) are promising for high‐efficiency tandem applications, but their long‐term stability, particularly due to ion migration, remains a challenge. Despite progress in stabilizing PSCs, they still fall short compare…
View article: Revisiting Sub-Band Gap Emission Mechanism in 2D Halide Perovskites: The Role of Defect States
Revisiting Sub-Band Gap Emission Mechanism in 2D Halide Perovskites: The Role of Defect States Open
Understanding the sub-band gap luminescence in Ruddlesden-Popper 2D metal halide hybrid perovskites (2D HaPs) is essential for efficient charge injection and collection in optoelectronic devices. Still, its origins are still under debate w…
View article: Minimizing Interfacial Recombination in 1.8 eV Triple‐Halide Perovskites for 27.5% Efficient All‐Perovskite Tandems
Minimizing Interfacial Recombination in 1.8 eV Triple‐Halide Perovskites for 27.5% Efficient All‐Perovskite Tandems Open
All‐perovskite tandem solar cells show great potential to enable the highest performance at reasonable costs for a viable market entry in the near future. In particular, wide‐bandgap (WBG) perovskites with higher open‐circuit voltage ( V O…
View article: Rubidium Iodide Reduces Recombination Losses in Methylammonium‐Free Tin‐Lead Perovskite Solar Cells
Rubidium Iodide Reduces Recombination Losses in Methylammonium‐Free Tin‐Lead Perovskite Solar Cells Open
Outstanding optoelectronic properties of mixed tin‐lead perovskites are the cornerstone for the development of high‐efficiency all‐perovskite tandems. However, recombination losses in Sn‐Pb perovskites still limit the performance of these …
View article: Efficiency Potential and Voltage Loss of Inorganic CsPbI<sub>2</sub>Br Perovskite Solar Cells
Efficiency Potential and Voltage Loss of Inorganic CsPbI<sub>2</sub>Br Perovskite Solar Cells Open
Inorganic perovskite solar cells show excellent thermal stability, but the reported power conversion efficiencies are still lower than for organic–inorganic perovskites. This is mainly caused by lower open‐circuit voltages ( V OC s). Herei…
View article: Field Effect Passivation in Perovskite Solar Cells by a LiF Interlayer
Field Effect Passivation in Perovskite Solar Cells by a LiF Interlayer Open
The fullerene C 60 is commonly applied as the electron transport layer in high‐efficiency metal halide perovskite solar cells and has been found to limit their open circuit voltage. Through ultra‐sensitive near‐UV photoelectron spectroscop…
View article: Charge transfer rates and electron trapping at buried interfaces of perovskite solar cells
Charge transfer rates and electron trapping at buried interfaces of perovskite solar cells Open
Identification of electronic processes at buried interfaces of charge-selective contacts is crucial for photovoltaic and photocatalysis research. Here, transient surface photovoltage (SPV) is used to study the passivation of different hole…
View article: Evolution of Optical, Electrical, and Structural Properties of Indium Tungsten Oxide upon High Temperature Annealing
Evolution of Optical, Electrical, and Structural Properties of Indium Tungsten Oxide upon High Temperature Annealing Open
Optical, structural and electrical properties of thermally co‐evaporated indium tungsten oxide (IWO x ) thin films with varied stoichiometry, from pure tungsten oxide to pure indium oxide (InO x ) are investigated upon stepwise annealing, …