Buried interface management toward high-performance perovskite solar cells†

IF 7.6 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Bin Du, Yuexin Lin, Jintao Ma, Weidan Gu, Fei Liu, Yijun Yao and Lin Song
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引用次数: 0

Abstract

The interface between the perovskite layer and the electron transport layer is an extremely important factor that cannot be ignored in achieving high-performance perovskite photovoltaic technology. However, the void defects of the interface pose a serious challenge for high performance perovskite solar cells (PSCs). To address this, we report a polydentate ligand reinforced chelating strategy to strengthen the stability of the buried interface by managing interfacial defects and stress. Gelatin-coupled cellulose (GCC) is employed to manipulate the buried interface. The unique functional groups in GCC synergistically passivate the defects from the surface of SnO2 and the bottom surface of the perovskite layer. Our work demonstrates that by implementing GCC as a buried interface strategy, it is possible to prepare devices with reduced vacancy states, non-radiative recombination suppression, and excellent optoelectronic performance. At the same time, this work improves the efficiency and stability of PSCs and provides greater space for device manufacturing.

Abstract Image

高性能钙钛矿太阳能电池的埋藏界面管理
钙钛矿层与电子传输层之间的界面是实现高性能钙钛矿光伏技术中不可忽视的极其重要的因素。然而,界面的空洞缺陷对高性能钙钛矿太阳能电池(PSCs)提出了严峻的挑战。为了解决这个问题,我们报道了一种多齿配体增强螯合策略,通过控制界面缺陷和应力来增强埋藏界面的稳定性。明胶偶联纤维素(GCC)被用来操纵埋藏界面。GCC中独特的官能团协同钝化了SnO2表面和钙钛矿层底表面的缺陷。我们的工作表明,通过将GCC作为埋藏界面策略实施,可以制备具有减少空位态,非辐射复合抑制和优异光电性能的器件。同时,这项工作提高了psc的效率和稳定性,为器件制造提供了更大的空间。
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来源期刊
Chemical Science
Chemical Science CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
14.40
自引率
4.80%
发文量
1352
审稿时长
2.1 months
期刊介绍: Chemical Science is a journal that encompasses various disciplines within the chemical sciences. Its scope includes publishing ground-breaking research with significant implications for its respective field, as well as appealing to a wider audience in related areas. To be considered for publication, articles must showcase innovative and original advances in their field of study and be presented in a manner that is understandable to scientists from diverse backgrounds. However, the journal generally does not publish highly specialized research.
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