Kerem Artuk

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A Universal Perovskite/C60 Interface Modification via Atomic Layer Deposited Aluminum Oxide for Perovskite Solar Cells and Perovskite-Silicon Tandems

Christophe Ballif, Aïcha Hessler-Wyser, Mounir Driss Mensi, Christian Michael Wolff, Mostafa Rabie Shlaly Bahr Othman, Deniz Türkay, Kerem Artuk

The primary performance limitation in inverted perovskite-based solar cells is the interface between the fullerene-based electron transport layers and the perovskite. Atomic layer deposited thin aluminum oxide (AlOX) interlayers that reduce nonradiative re ...

Wiley-V C H Verlag Gmbh2024

Perovskite/Silicon Tandem Solar Cells Above 30% Conversion Efficiency on Submicron-Sized Textured Czochralski-Silicon Bottom Cells with Improved Hole-Transport Layers

Christophe Ballif, Christian Michael Wolff, Kerem Artuk

In perovskite/silicon tandem solar cells, the utilization of silicon heterojunction (SHJ) solar cells as bottom cells is one of the most promising concepts. Here, we present optimization strategies for the top cell processing and their integration into SHJ ...

2024

Interface passivation for 31.25%-efficient perovskite/silicon tandem solar cells

Christophe Ballif, Quentin Thomas Jeangros, Mounir Driss Mensi, Christian Michael Wolff, Daniel Anthony Jacobs, Deniz Türkay, Kerem Artuk, Mathieu Gérard Boccard, Peter Joseph Fiala, Quentin Jean-Marie Armand Guesnay

Silicon solar cells are approaching their theoretical efficiency limit of 29%. This limitation can be exceeded with advanced device architectures, where two or more solar cells are stacked to improve the harvesting of solar energy. In this work, we devise ...

American Association for the Advancement of Science2023

Laser Patterned Flexible 4T Perovskite-Cu(In,Ga)Se-2 Tandem Mini-module with Over 18% Efficiency

Christian Michael Wolff, Kerem Artuk

Perovskite-Cu(In,Ga)Se-2 (CIGS) thin-film tandem technology provides an exciting prospect to achieve low-cost high-efficiency photovoltaic devices by high throughput roll-to-roll processing on flexible substrates. However, no report on flexible perovskite- ...

WILEY-V C H VERLAG GMBH2022

Lateral ion migration accelerates degradation in halide perovskite devices

Christophe Ballif, Quentin Thomas Jeangros, Kerem Artuk, Christian Michael Wolff, Daniel Anthony Jacobs, Xin Yu Chin

The migration of mobile ions has long been considered a source of performance degradation in devices based on halide perovskites, but details regarding the mechanisms and extent of this problem remain scarce. Here we report the finding that differences in ...

ROYAL SOC CHEMISTRY2022

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