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Engineered charge transport layers for improving indoor perovskite photovoltaic performance

Ram Datt Orcid Logo, Pietro Caprioglio Orcid Logo, Saqlain Choudhary Orcid Logo, Weixia Lan Orcid Logo, Henry Snaith Orcid Logo, Wing Chung Tsoi Orcid Logo

Journal of Physics: Energy, Volume: 6, Issue: 2, Start page: 025014

Swansea University Authors: Ram Datt Orcid Logo, Wing Chung Tsoi Orcid Logo

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Abstract

The developing Internet of Things market is attracting the indoor photovoltaic (IPV) as an essential power source. Perovskite photovoltaics (PPVs) are a fascinating candidate for IPV in solution-processable photovoltaics. Recent developments in PPVs can deliver power conversion efficiency (PCE) up t...

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Published in: Journal of Physics: Energy
ISSN: 2515-7655
Published: IOP Publishing 2024
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa66415
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Abstract: The developing Internet of Things market is attracting the indoor photovoltaic (IPV) as an essential power source. Perovskite photovoltaics (PPVs) are a fascinating candidate for IPV in solution-processable photovoltaics. Recent developments in PPVs can deliver power conversion efficiency (PCE) up to 25% outdoor (AM 1.5 G) and over 40% under indoor (1000 lux) light. The selection of charge transport layers (CTLs) has played an essential role in improving PPVs indoor performance. Herein, formamidinium-caesium-based mixed-cation (FACsPb(I,Br)3) PPV devices are fabricated, and evaluated their outdoor and indoor performances by changing the different CTL combinations such as PTAA-PCBM and SAM-C60. Outdoor PCEs were 13.76% and 15.27% achieved for PTAA-PCBM and SAM-C60-based devices, respectively. Meanwhile, under LED (4000 K) 1000 lux, the PCEs were 26.32% and 31.92% for PTAA-PCBM and SAM-C60-based PPV, respectively. The short circuit current (Jsc) (116.8–122.5 µA cm−2) and fill factor (FF) (0.724–0.817) were the main parameters which improved for SAM-C60-based devices under indoor light. This study points to the importance of CTL combination and indicates the promising potential of SAM-C60 interlayers in PPV indoor applications.
Keywords: perovskite solar cells, indoor photovoltaic, self-assembled monolayer, charge transport layers
College: Faculty of Science and Engineering
Funders: R D sincerely acknowledges the SPECIFIC Innovation and Knowledge Centre (EP/N020863/1). W C T, H S, R D and P C acknowledged Engineering and Physics Science Research Council (EPSRC) Application Targeted And Integrated Photovoltaics (ATIP) (EP/T028513/1) Grant for providing financial support. W C T and W L would like to acknowledge the Foreign Expert Foundation of China funding (G2023013014L).
Issue: 2
Start Page: 025014