超快激光辐照诱导无掺杂的螺铂-OMeTAD 氧化,以提高过氧化物太阳能电池的性能

IF 13 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Energy & Environmental Materials Pub Date : 2024-08-12 DOI:10.1002/eem2.12818
Jiaqi Meng, Xiangyu Chen, Weihan Li, Nianyao Chai, Zhongle Zeng, Yunfan Yue, Fengyi Zhao, Xuewen Wang
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引用次数: 0

摘要

透镜材料具有优异的光电性能和高兼容性,因此透镜太阳能电池极具广泛开发前景,备受关注。在包光体太阳能电池中,空穴传输层起着至关重要的作用。对于常用的有机小分子空穴传输材料 Spiro-OMeTAD,需要经过一段时间的氧化处理才能达到完全的传输性能。然而,这种后处理氧化工艺通常依赖于环境氧化,这给精确控制带来了挑战,并导致过氧化物光吸收层降解。这种方法无法满足实际应用中对高效率和稳定性的要求。本文研究了超快激光在 Spiro-OMeTAD 上的作用机理以及激光诱导其氧化的反应过程。在超快激光照射下,Perovskite/Spiro-OMeTAD界面上的PbI2分解产生I2,I2促进了氧化过程。通过激光辐照氧化处理,实现了更高稳定性的透辉石太阳能电池。这项工作为斯派罗-OMeTAD 的氧化处理提供了一种新方法。
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Ultrafast Laser Irradiation Induced Oxidation of Dopant-Free Spiro-OMeTAD for Improving the Perovskite Solar Cells Performance
The exceptional photoelectric performance and high compatibility of perovskite materials render perovskite solar cells highly promising for extensive development, thus garnering significant attention. In perovskite solar cells, the hole transport layer plays a crucial role. For the commonly employed organic small molecule hole transport material Spiro-OMeTAD, a certain period of oxidation treatment is required to achieve complete transport performance. However, this posttreatment oxidation processes typically rely on ambient oxidation, which poses challenges in terms of precise control and leads to degradation of the perovskite light absorption layer. This approach fails to meet the demands for high efficiency and stability in practical application. Herein, the mechanism of ultrafast laser on Spiro-OMeTAD and the reaction process for laser-induced oxidation of it are investigated. PbI2 at Perovskite/Spiro-OMeTAD interface breaks down to produce I2 upon ultrafast laser irradiation and I2 promote the oxidation process. Through the laser irradiation oxidation processing, a higher stability of perovskite solar cells is achieved. This work establishes a new approach toward oxidation treatment of Spiro-OMeTAD.
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来源期刊
Energy & Environmental Materials
Energy & Environmental Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
17.60
自引率
6.00%
发文量
66
期刊介绍: Energy & Environmental Materials (EEM) is an international journal published by Zhengzhou University in collaboration with John Wiley & Sons, Inc. The journal aims to publish high quality research related to materials for energy harvesting, conversion, storage, and transport, as well as for creating a cleaner environment. EEM welcomes research work of significant general interest that has a high impact on society-relevant technological advances. The scope of the journal is intentionally broad, recognizing the complexity of issues and challenges related to energy and environmental materials. Therefore, interdisciplinary work across basic science and engineering disciplines is particularly encouraged. The areas covered by the journal include, but are not limited to, materials and composites for photovoltaics and photoelectrochemistry, bioprocessing, batteries, fuel cells, supercapacitors, clean air, and devices with multifunctionality. The readership of the journal includes chemical, physical, biological, materials, and environmental scientists and engineers from academia, industry, and policy-making.
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