Journal Article

FZJ-2020-01441

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Pitfalls and prospects of optical spectroscopy to characterize perovskite-transport layer interfaces

Hutter, E. M. ; Kirchartz, T. (Corresponding author)FZJ* ; Ehrler, B. ; Cahen, D. ; von Hauff, E.

2020
American Inst. of Physics Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/25205  doi:10.1063/1.5143121

Abstract: Perovskite photovoltaics has witnessed an unprecedented increase in power conversion efficiency over the last decade. The choice of transport layers, through which photo-generated electrons and holes are transported to electrodes, is a crucial factor for further improving both the device performance and stability. In this perspective, we critically examine the application of optical spectroscopy to characterize the quality of the transport layer-perovskite interface. We highlight the power of complementary studies that use both continuous wave and time-resolved photoluminescence to understand non-radiative losses and additional transient spectroscopies for characterizing the potential for loss-less carrier extraction at the solar cell interfaces. Based on this discussion, we make recommendations on how to extrapolate results from optical measurements to assess the quality of a transport layer and its impact on solar cell efficiency.The work of E.M.H. and B.E. is part of the Dutch Research Council (NWO) and was performed at the research institute AMOLF. T.K. acknowledges the Helmholtz Association for funding via the PEROSEED project. D.C acknowledges funding from the Yotam project and the CNRS-Weizmann collaboration.

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Contributing Institute(s):

1. Photovoltaik (IEK-5)

Research Program(s):

1. 121 - Solar cells of the next generation (POF3-121) (POF3-121)

Appears in the scientific report 2020

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; PubMed Central ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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