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张海波

副教授

基本信息 / Basic Information

  • 教师英文名称: Haibo Zhang
  • 教师拼音名称: Zhang Haibo
  • 所在单位: 化学与分子科学学院
  • 职务: 化学国家级实验教学示范中心(武汉大学)副主任
  • 学历: 研究生毕业
  • 性别: 男
  • 在职信息: 在职
  • 毕业院校: 武汉大学
  • 学科: 应用化学 、 化学其他专业

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论文成果

当前位置: 武汉大学张海波 - 科学研究 - 论文成果

Efficient Targeted Regulation of the Interfaces and Bulk in Inverted Perovskite Solar Cells with a [closo-B12H12]2--based Derivative

发布时间:2024-12-06
点击次数:
发表刊物:
Advanced Materials
摘要:
The performance and stability of inverted perovskite solar cells (PSCs) is adversely affected by the recombination loss, ion migration, and residual stress arising from issues within the bulk and at the cathode interface. Using simple post-treatment with a novel solution-processable derivative of the dodecahydro-closo-dodecaborate anion ([closo-B12H12]2-)—(TBA)2[B12H11(OCH2CH2)2OH] (TBA2B)—we simultaneously address these issues. In inverted PSCs, the cationic and anionic components of TBA2B uniquely self-separate by positioning themselves precisely to perform their specific modification functions. The majority of BOH2- ions reside at the PCBM/Ag interface, which enhances the electrical and physical contact. Additionally, a substantial fraction of TBA+ cations diffuse into the perovskite/PCBM heterojunction, enabling comprehensive control over the trap passivation, stress release, ion migration elimination, and grain boundary reinforcement through the in-situ formation of one-dimensional TBAPbI3 on the surface of the perovskite crystals. The TBA2B devices exhibit high power conversion efficiency (PCE) of 25.59% and Voc of 1.199 V, performance that is among the highest achieved with a solution-processed perovskite/PCBM heterojunction. Furthermore, TBA2B significantly enhances the device's stability. This study provides crucial insights into the design of efficient and solution processable [closo-B12H12]2--based interface materials, and offers a comprehensive understanding of the underlying modification mechanisms.
论文类型:
期刊论文
论文编号:
10.1002/adma.202414155
卷号:
2414155
是否译文:
发表时间:
2024-12-09
发布期刊链接:
https://doi.org/10.1002/adma.202414155