根据ISOS-L-3协议,用于运行稳定的矿太阳能电池的化离子的动态可逆氧化-减少
Xiaoyi Lu1,2, Kexuan Sun1, Yaohua Wang1
1Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
Advanced materials (Deerfield Beach, Fla.)
|April 5, 2024
概括
添加的mercaptoethylammonium iodide (ESAI) 可以使矿太阳能电池 (PSC) 稳定,防止光和热. 这种添加剂防止的形成和降解,保持高效率超过300小时.
科学领域:
- 材料科学 材料科学 材料科学
- 太阳能光伏发电是如何实现的
- 化学 化学 化学
背景情况:
- 矿太阳能电池 (PSC) 显示出高效率,但运行稳定性不佳.
- 光诱导的化物离子迁移和 (I2) 形成导致不可逆转的降解,特别是在高温下.
研究的目的:
- 为了提高PSC的运行稳定性,使用mercaptoethylammonium iodide (ESAI) 作为添加剂.
- 为了减轻因光诱导的离子迁移和热效应引起的降解.
主要方法:
- 将ESAI纳入矿层以抑制氧化和I2形成.
- 形成一个硫化/I-I2氧化还原对,用于动态的I2还原.
- 根据ISOS-L-3协议进行稳定性测试 (MPP跟踪,~50%的RH,~65°C300小时).
主要成果:
- 埃萨伊有效地抑制了FAPbI3.3的光诱导降解途径.
- 氧化还原对促进压力下I2的持续减少,治疗诱导的降解.
- 经过治疗的PSC在300小时后保留了97%的初始PCE,而控制装置显著退化.
结论:
- ESAI是一个有前途的添加剂,可显著提高PSC的运行稳定性,特别是在热应力下.
- 该战略解决了关键的稳定性挑战,为PSC技术的商业化铺平了道路.
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