DataVXACS Energy LettersPaper
journal article·2024-03-08

MAPbCl3 Light Absorber for Highest Voltage Perovskite Solar Cells

Waqas Zia, Mahdi Malekshahi Byranvand, Toby Rudolph, Monika Rai, Małgorzata Kot, Chittaranjan Das, Mayank Kedia, Mohammadreza Zohdi, Weiwei Zuo, Vishal Yeddu, Makhsud I. Saidaminov, Jan Ingo Flege, Thomas Kirchartz, Michael Saliba

ACS Energy Letters· Volume 9· Issue 3
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Source abstract

Abstract

Perovskite solar cells (PSCs) excel in achieving high open-circuit voltages ( V OC ) for narrow bandgaps (∼1.6 eV) but face challenges with wide-bandgap perovskites, like methylammonium lead trichloride (MAPbCl 3 ) with a 3.03 eV bandgap. These materials are transparent in visible absorbing ultraviolet (UV) light. However, achieving uniform film crystallization remains a hurdle. Here, we enhance MAPbCl 3 crystallization by manipulating annealing atmospheres (nitrogen, air, and MACl vapor). Excess MACl vapor improves surface coverage, which is crucial for film stability. We demonstrate that the microstructure of the perovskite film, including surface morphology, grain boundaries, and interfaces, can affect the photovoltaic properties. The subsequently obtained V OC of 1.78 V is the highest recorded for single-junction PSCs to the best of our knowledge. Surprisingly, the conventional hole-transport layer spiro-OMeTAD, optimized for narrow bandgaps, sustains such high voltages. Photoluminescence measurements reveal a trap-assisted recombination peak at 1.65 eV, indicating deep traps as significant to voltage loss in MAPbCl 3 .
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materialsMaterials processing

OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute for Photovoltaics (ipv), University of Stuttgart, 70569 Stuttgart, Germany

Helmholtz Young Investigator Group FRONTRUNNER, IEK-5 Photovoltaics, Forschungszentrum Jülich, 52425 Jülich, Germany

IEK-5 Photovoltaics, Forschungszentrum Jülich, 52425 Jülich, Germany

Chair of Applied Physics and Semiconductor Spectroscopy, Brandenburg University of Technology Cottbus-Senftenberg, Konrad-Zuse-Straße 1, 03046 Cottbus, Germany

Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada

Department of Electrical & Computer Engineering and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada

Faculty of Engineering and CENIDE, University of Duisburg-Essen, Carl-Benz-Str. 199, 47057 Duisburg, Germany

Funding

H2020 Energy · Bundesministerium f?r Wirtschaft und Energie · Canada Research Chairs · Ministry of Energy, Israel · Bundesministerium f?r Bildung und Forschung · Ministerio de Ciencia, Innovaci?n y Universidades · Helmholtz-Gemeinschaft · Canada Foundation for Innovation · Deutsche Forschungsgemeinschaft · Natural Sciences and Engineering Research Council of Canada · British Columbia Knowledge Development Fund · H2020 European Research Council · Centro para el Desarrollo Tecnol?gico Industrial

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