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Volume 29 Issue 8
Aug.  2022

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  • 文章访问数:  241
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  • 被引次数: 0
Bo Cheng, Dong Wang, Qianqian Chu, and Liang Chu, Omnidirectional annealing process for scalable perovskite films, Int. J. Miner. Metall. Mater., 29(2022), No. 8, pp. 1491-1492. https://doi.org/10.1007/s12613-021-2405-0
Cite this article as:
Bo Cheng, Dong Wang, Qianqian Chu, and Liang Chu, Omnidirectional annealing process for scalable perovskite films, Int. J. Miner. Metall. Mater., 29(2022), No. 8, pp. 1491-1492. https://doi.org/10.1007/s12613-021-2405-0
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研究亮点

大面积钙钛矿薄膜的全方位热处理工艺研究

  • 通讯作者:

    楚倩倩    E-mail: cqqonly@163.com

    楚亮    E-mail: chuliang@hdu.edu.cn

文章亮点

  • (1) 介绍了一种有机无机杂化钙钛矿薄膜的液态介质热处理工艺。
  • (2) 实现了大晶粒,严格化学计量比钙钛矿薄膜制备。
  • (3) 成功制备大面积高效稳定钙钛矿太阳能电池(0.08 cm2 :24.04%,1 cm2 :23.15%)。
  • 卤化物钙钛矿因为优异的光电性能和溶液法低成本的制备工艺获得了广泛的关注,并取得了飞速的发展。然而,钙钛矿薄膜仍然存在着大面积、高复现性和精准化学计量比制备难以实现等问题,阻碍了其商业化。本文介绍了一种液体介质退火(liquid medium annealing, LMA)方法。该方法选取高热导率、低黏度的苯甲醚制备了一个稳定的热处理液体环境,可实现钙钛矿薄膜的全方位加热,进而调节钙钛矿薄膜的生长。苯甲醚液体介质可轻易萃取钙钛矿薄膜中的残余溶剂(例如DMSO等),抑制钙钛矿中有机组分和卤族元素的挥发,避免周围环境中水、氧等在热处理过程中对钙钛矿薄膜的破坏;进而形成低缺陷密度、理想化学计量比、高均匀性、高复现性和较少的环境影响的高质量钙钛矿薄膜。采用该方案制备钙钛矿太阳能电池展现了良好的光电性能和复现性,当面积为0.08 cm2时电池的光电转换效率超过24.04%,当面积为1 cm2时电池的光电转换效率超过23.15%,并且平均效率大于23%。
  • Highlight

    Omnidirectional annealing process for scalable perovskite films

    + Author Affiliations
    • Halide perovskites are promising photovoltaic materials due to the outstanding photoelectric properties and low-cost solution process; however, the low scalability and reproducibility of perovskite films hinder the commercialization. Liquid medium annealing (LMA) method has provided a robust liquid environment and an omnidirectional heating field to modulate the growth of perovskite films for high quality with low defect density, desirable stoichiometry, high homogeneity, and less environmental influence. The fabricated perovskite solar cells exhibited excellent reproducibility and power conversion efficiencies exceeding 24.04% with 0.08 cm2 area and 23.15% with 1 cm2 area.
    • loading
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