Characterizing the Influence of Charge Extraction Layers on the Performance of Triple‐Cation Perovskite Solar Cells

Author:

Siekmann Johanna1,Kulkarni Ashish2ORCID,Akel Samah1,Klingebiel Benjamin1,Saliba Michael23,Rau Uwe1,Kirchartz Thomas14ORCID

Affiliation:

1. IEK5‐Photovoltaik IEK5‐Photovoltaik Forschungszentrum Jülich GmbH Wilhelm‐Johnen‐Straße 52428 Jülich Germany

2. Helmholtz Young Investigator Group FRONTRUNNER IEK5‐Photovoltaik Forschungszentrum Jülich 52425 Jülich Germany

3. Institute for Photovoltaics University of Stuttgart Pfaffenwaldring 47 70569 Stuttgart Germany

4. Faculty of Engineering and CENIDE University of Duisburg‐Essen Carl‐Benz‐Str. 199 47057 Duisburg Germany

Abstract

AbstractSelecting suitable charge transport layers and suppressing non‐radiative recombination at interfaces with the absorber layer is vital for maximizing the efficiency of halide perovskite solar cells. In this study, high‐quality perovskite thin films and devices are fabricated with different fullerene‐based electron transport layers and different self‐assembled monolayers as hole transport layers. Then, a comparative study of a significant variety of different electrical, optical, and photoemission‐based characterization techniques is performed to quantify the properties of the solar cells, individual layers, and, importantly, the interfaces between them. In addition, the limitations and problems of the different measurements, the insights gained by combining different methods, and the different strategies for extracting information from the experimental raw data, are highlighted.

Funder

Helmholtz-Gemeinschaft

Albert Ellis Institute

Bundesministerium für Wirtschaft und Energie

European Commission

European Research Council

Publisher

Wiley

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment

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