有机盐基稳定添加剂对三阳离子矿太阳能电池中电荷载体动态的影响
Patrick Dörflinger1, Yong Ding2, Valentin Schmid1
1Experimental Physics 6, Julius Maximilian University of Würzburg, 97074, Würzburg, Germany.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 9, 2023
概括
添加N,N-二甲基甲基化 ([Dmmim]Cl) 通过提高电荷载体的移动性和限制在热应力下离子迁移来增强矿太阳能电池 (PSC) 的稳定性. 这种添加剂对于耐用和高效的PSC设备至关重要.
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.
- 固态物理 固态物理
背景情况:
- 矿太阳能电池 (PSC) 显示出高功率转换效率 (PCE),但存在长期稳定性问题.
- 有机与化物对抗离子是增强PSC性能和耐久性的有希望的添加剂.
研究的目的:
- 为了研究N,N-二甲基甲基化 ([Dmmim]Cl) 对三阳矿 (Cs$_{0.05}$ MA$_{0.05}$ FA$_{0.90}$ PbI_{3}$) 薄膜的稳定作用.
- 了解限制电荷载体移动性的基本机制及其对热稳定性的影响.
主要方法:
- 在矿薄膜上进行了温度依赖的微波导电性测量.
- 在热应力下分析电荷载体的移动性和寿命.
- 化 ([Dmmim]Cl) 和未化矿薄膜的比较.
主要成果:
- 观察到两个不同的温度依赖的电荷载体移动性行为 (Tm功率定律),表明不同的散射机制.
- 低温的移动性受到极光学声子的限制;高温的移动性受到动态障碍的减少.
- [Dmmim]Cl兴奋剂与未兴奋剂样品相比,显著提高了膜和装置的稳定性.
结论:
- [Dmmim]Cl作为稳定添加剂,通过限制温度激活的移动离子和减缓矿的降解而起作用.
- 该添加剂增强了电荷载体的移动性和寿命,有助于提高在热应力下设备的稳定性.
- 了解散射机制为设计更稳定的矿太阳能电池提供了洞察力.
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