基于自组装二氧化钛空穴阻挡层的高效钙钛矿太阳能电池

却中保; 楚亮; 翟帅博; 冯奕霏; 陈晨; 刘维; 胡瑞媛; 胡静; 李兴鳌

doi:10.1007/s12613-021-2361-8

Volume 29 Issue 6

Jun. 2022

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文章导航 > 矿物冶金与材料学报（英文） > 2022 > 29(6): 1280-1285

Zhongbao Que, Liang Chu, Shuaibo Zhai, Yifei Feng, Chen Chen, Wei Liu, Ruiyuan Hu, Jing Hu, and Xing’ao Li, Self-assembled TiO₂ hole-blocking layers for efﬁcient perovskite solar cells, Int. J. Miner. Metall. Mater., 29(2022), No. 6, pp. 1280-1285. https://doi.org/10.1007/s12613-021-2361-8

Cite this article as:

Zhongbao Que, Liang Chu, Shuaibo Zhai, Yifei Feng, Chen Chen, Wei Liu, Ruiyuan Hu, Jing Hu, and Xing’ao Li, Self-assembled TiO2 hole-blocking layers for efﬁcient perovskite solar cells, Int. J. Miner. Metall. Mater., 29(2022), No. 6, pp. 1280-1285. https://doi.org/10.1007/s12613-021-2361-8

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研究论文

基于自组装二氧化钛空穴阻挡层的高效钙钛矿太阳能电池

南京邮电大学江苏省新能源技术工程实验室 & 理学院 & 材料科学与工程学院& 电子与光学工程学院，南京 210023，中国

通讯作者:
楚亮 E-mail: chuliang@njupt.edu.cn

文章亮点

(1) 开发了免退火的自组装室温工艺制备TiO₂致密层并应用于钙钛矿太阳能电池。

(2) 阐述了室温沉积TiO₂的机理。

(3) 基于自组装TiO₂的全低温钙钛矿太阳能电池的能力转化效率为16.41%。

中文摘要

器件兼容功能层的自组装工艺是一种简单、可行和节能的策略。在介孔钙钛矿太阳能电池(perovskite solar cells, PSCs)中，致密的TiO₂膜起到空穴阻挡层的作用，而介孔的TiO₂膜起到电子传输层的作用。然而，这两层通常都要通过高温退火法获得。在此，我们通过室温自组装工艺沉积了致密的TiO₂薄膜，以作为PSCs有效的空穴阻挡层。通过沉积时间控制致密TiO₂薄膜的厚度。优化致密TiO₂薄膜的厚度(80 nm)，有无空穴传输层的介孔PSCs的能量转化效率分别为17.95%和10.66%。值得注意的是，基于自组装TiO₂的全低温PSCs显示出16.41%的能量转化效率。

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Research Article

Self-assembled TiO₂ hole-blocking layers for efﬁcient perovskite solar cells

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Abstract

Abstract

The self-assembly process for compatible functional layers of devices is a simple, feasible, and energy-saving strategy. In mesoporous perovskite solar cells (PSCs), compact and scaffold TiO₂ films generally function as the hole-blocking and electron-transporting layers, respectively. However, both of these layers are usually generated through a high-temperature annealing process. Here, we deposited TiO₂ compact films through a room-temperature self-assembly process as effective hole-blocking layers for PSCs. The thickness of TiO₂ compact films can be easily controlled by the deposition time. Through the optimization of TiO₂ compact films (80 nm), the power conversion efficiency (PCE) of mesoporous PSCs without and with hole conductor layers increases up to 10.66% and 17.95%, respectively. Notably, an all-low-temperature planar PSC with the self-assembled TiO₂ layer exhibits a PCE of 16.41%.
- perovskite solar cells;
- titanium dioxide;
- self-assembly;
- power conversion efficiency

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