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Volume 29 Issue 6
Jun.  2022

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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

  • 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%。
  • 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。
  • Research Article

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

    + Author Affiliations
    • 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%.
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