氢键调节的添加剂工程制备高效稳定的钙钛矿太阳能电池

Additive Engineering Modulated by Hydrogen Bonding for Highly Efficient and Stable Perovskite Solar Cells

范芳芳 ¹文丽荣 ¹周忠敏¹

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作者信息

1. 青岛科技大学化学与分子工程学院,山东青岛 266042
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摘要

为了制备高性能的钙钛矿太阳能电池,甘氨酸盐酸盐(Gly+)被用来钝化薄膜缺陷.Gly+作为添加剂被引入钙钛矿前驱体溶液.Gly+和钙钛矿之间存在分子间相互作用,可以有效地控制结晶过程.引入 Gly+之后,钙钛矿薄膜的晶粒尺寸变大,结晶度提高.稳态荧光(PL)以及暗电流测试表明添加剂减少了器件的非辐射复合.与原始器件(20.13%)相比,添加剂的加入大大提升了器件效率,其最高值为 22.35%;同时,器件的空气稳定性和热稳定性都得到改善.

Abstract

In order to prepare high-performance perovskite solar cells,glycine hydrochloride(Gly+)was used to passivate thin films defects.The additive of Gly+ was introduced into the perovskite precursor solution.The intermolecular interaction between Gly+ and perovs-kite can effectively control the crystallization dynamic.Gly+ enlarges the grain size of per-ovskite films and improves the crystallinity.Dark current and steady-state luminescence(PL)measurements indicate that the additive reduces the nonradiative recombination of the device.Compared with the control device of 20.13%,the device based on perovskite film with Gly+ improves the efficiency up to 22.35%.Additionally,Gly+-based devices show improved air stability and thermal stability.

关键词

钙钛矿太阳能电池/甘氨酸盐酸盐/添加剂/氢键

Key words

perovskite solar cells/glycine hydrochloride/additive/hydrogen bonding

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基金项目

山东省泰山学者项目(201909121)

出版年

2024

青岛科技大学学报(自然科学版)

青岛科技大学

青岛科技大学学报(自然科学版)

CSTPCD

影响因子：0.297

ISSN：1672-6987

参考文献量20

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