大面积钙钛矿薄膜的全方位热处理工艺研究

成波; 王栋; 楚倩倩; 楚亮

doi:10.1007/s12613-021-2405-0

Volume 29 Issue 8

Aug. 2022

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文章导航 > 矿物冶金与材料学报（英文） > 2022 > 29(8): 1491-1492

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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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

1)
兰州理工大学材料学院省部共建有色金属先进加工与再利用国家重点实验室, 兰州 730050, 中国
2)
杭州电子科技大学碳中和新能源研究院&电子信息学院, 杭州 310018, 中国

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%）。

中文摘要

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%。

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Omnidirectional annealing process for scalable perovskite films

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Abstract

Abstract

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.
- halide perovskite;
- scalable and reproducible fabrication;
- liquid medium annealing

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References

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