Engineered charge transport layers for improving indoor perovskite photovoltaic performance

IF 7 3区材料科学 Q1 ENERGY & FUELS

Journal of Physics-Energy Pub Date : 2024-03-21 DOI:10.1088/2515-7655/ad31bb

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

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引用次数: 0

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 (J _sc) (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.

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改善室内过氧化物光伏性能的工程电荷传输层

不断发展的物联网市场正吸引着室内光伏（IPV）成为必不可少的电源。在可溶液加工光伏技术中，包晶光伏（PPV）是 IPV 的理想候选材料。最近开发的 PPV 在室外（AM 1.5 G）的功率转换效率（PCE）可达 25%，在室内（1000 勒克斯）光照下可超过 40%。电荷传输层（CTL）的选择对提高 PPV 的室内性能起着至关重要的作用。本文制作了甲脒铯基混合阳离子（FACsPb(I,Br)3）PPV 器件，并通过改变不同的 CTL 组合（如 PTAA-PCBM 和 SAM-C60）评估了其室外和室内性能。基于 PTAA-PCBM 和 SAM-C60 的器件的室外 PCE 分别为 13.76% 和 15.27%。同时，在 LED（4000 K）1000 勒克斯条件下，基于 PTAA-PCBM 和 SAM-C60 的 PPV 的 PCE 分别为 26.32% 和 31.92%。短路电流（Jsc）（116.8-122.5 µA cm-2）和填充因子（FF）（0.724-0.817）是基于 SAM-C60 的器件在室内光照条件下改善的主要参数。这项研究指出了 CTL 组合的重要性，并表明了 SAM-C60 夹层在 PPV 室内应用中的巨大潜力。

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来源期刊

Journal of Physics-Energy Multiple-

CiteScore

10.90

自引率

1.40%

发文量

期刊介绍： The Journal of Physics-Energy is an interdisciplinary and fully open-access publication dedicated to setting the agenda for the identification and dissemination of the most exciting and significant advancements in all realms of energy-related research. Committed to the principles of open science, JPhys Energy is designed to maximize the exchange of knowledge between both established and emerging communities, thereby fostering a collaborative and inclusive environment for the advancement of energy research.