Plant-Derived l-Theanine for Ultraviolet/Ozone Resistant Perovskite Photovoltaics

Yong Li; Lidan Liu; Can ZhengZhike LiuLi ChenNingyi YuanJianning DingDapeng WangShengzhong (Frank) Liu

首页> 外文期刊>Advanced energy materials >Plant-Derived l-Theanine for Ultraviolet/Ozone Resistant Perovskite Photovoltaics

【24h】

Plant-Derived l-Theanine for Ultraviolet/Ozone Resistant Perovskite Photovoltaics

机译：Plant-Derived l-Theanine for Ultraviolet/Ozone Resistant Perovskite Photovoltaics

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

As the efficiency of perovskite solar cell has skyrocketed to as high as 25.7%, their stability has become the biggest obstacle to commercialization. Preliminary analyses suggest that additive engineering may be effective in improving both solar cell efficiency and its stability. Herein, the plant-derived natural green additive of l-Theanine (Thea) is selected to improve the crystal quality of the perovskite absorber and obtain high-performance perovskite solar cells (PSCs) with ultraviolet/ozone (UV/O_3) resistance. The characterization results reveal that the C=O group in Thea can effectively inhibit the precipitation of metal Pb~0, passivate undercoordinated Pb~(2+) ions, and promote the nucleation and crystallization of perovskite. In addition, the combination of the N-H group and I? in the form of a hydrogen bond cooperatively reduce the probability of nonradiative recombination of photogenerated carriers and effectively improves the extraction ability of carriers from perovskite absorber. With the cooperation of C=O and NH2 groups in Thea, the champion efficiency is improved from 22.29% in the control device to 24.58%. More importantly, Thea significantly alleviates the perovskite phase transition and film decomposition induced by UV/O_3 treatment. The study provides exploratory research for the application of plant-derived green additives in the UV/O_3 resistance field of perovskite photovoltaics.

著录项

来源
《Advanced energy materials》 |2023年第3期|2203190.1-2203190.11|共11页
作者
Yong Li; Lidan Liu; Can ZhengZhike LiuLi ChenNingyi YuanJianning DingDapeng WangShengzhong (Frank) Liu;
展开▼
作者单位

Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering Shaanxi Normal University X;

College of Food Engineering and Nutritional Science Shaanxi Normal University Xi’an 710119, P. R. China;

School of Materials Science and Engineering Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology Changzhou University Changzhou 21;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
L-Theanine; perovskite photovoltaics; plant-derived additives; solar cells;

Plant-Derived l-Theanine for Ultraviolet/Ozone Resistant Perovskite Photovoltaics

摘要

著录项

相关主题

期刊订阅