通过矿和电子输送层之间的离子交换反应来实现自发的组成-接口共同修改工程,以实现光伏的特殊长期稳定性
Wenxuan Lv1, Ming Feng1, Zijie Wei1
1Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
Small (Weinheim an der Bergstrasse, Germany)
|April 27, 2024
概括
研究人员开发了一种新方法,通过引入六酸 (NH4PF6) 来提高矿太阳能电池 (PSC) 的稳定性. 这一战略显著提高了矿薄膜的寿命,解决了商业化的一个关键挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 太阳能光伏发电是如何实现的
背景情况:
- 矿太阳能电池 (PSC) 的长期稳定性是其商业化的一个关键障碍.
- 矿膜的使用寿命与设备降解密切相关.
- 现有的方法难以提供足够的保护,防止环境压力因素和内部降解途径.
研究的目的:
- 开发一种新的战略,以提高矿膜的长期稳定性.
- 研究一种新引入的化合物对矿结构和性能的保护机制.
- 在标准化的老化条件下评估未封装矿太阳能电池的稳定性.
主要方法:
- 使用了一步溶剂工程技术,将六酸 (NH4PF6) 引入抗溶剂中.
- 这一过程通过离子交换反应诱导了自发的组成-接口共同修饰,形成梯度结构.
- 经过修改的矿薄膜和未封装设备的稳定性使用国际有机光伏稳定性峰会 (ISOS) 协议进行了评估.
主要成果:
- 纳入NH4PF6导致了多功能保护层,增强了疏水性,并通过键抑制了通过键的离子迁移.
- 矿缺陷减少,有助于改善内在膜质量.
- 未封装的设备保留了超过94% (14016小时,N2),81% (2500小时,空气) 和83% (1248小时,85°C) 的初始功率转换效率.
结论:
- 使用NH4PF6开发的组合-接口联合修改策略为矿太阳能电池提供了特殊的长期稳定性.
- 该方法有效地减轻了水分,离子迁移和内在缺陷的降解.
- 取得的稳定性表现与最先进的倒置PSC具有竞争力,为商业应用铺平了道路.
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