在增材工程中保存宽带间隔佩罗夫斯基特的固态度的重要性
Nick R M Schipper1, Guus J W Aalbers1, Laura Bellini1
1Molecular Materials and Nanosystems & Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands.
概括
矿太阳能电池中的添加剂可能会破坏静态度,降低性能. 添加多余的formamidinium iodide (FAI) 恢复了固态度和设备效率,这对于稳定的矿太阳能电池至关重要.
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.
- 固态化学 固态化学
背景情况:
- 增材工程是提高矿太阳能电池 (PSC) 性能和稳定性的关键.
- 之前的研究集中在结晶和薄膜形成上,忽视了对吸收器固体测量的添加效应.
- 缺乏对添加剂如何影响PSC固体测量的基本理解.
研究的目的:
- 为了研究常见添加剂对矿吸收器的ABX3固态度的影响.
- 阐明PSC中改变的静电量和光伏特性之间的关系.
- 为PSCs的合理增材工程提供见解.
主要方法:
- 制造宽带间隙 (1.77 eV) Cs0.2FA0.8Pb(I0.6Br0.4) 3 矿太阳能电池.
- 在前体溶液中加入硫酸和化添加剂.
- 添加多余的formamidinium化物 (FAI) 来恢复立体几何学.
- 控制FAI和化度的改变,以研究静脉测量偏差.
主要成果:
- 硫酸和化添加剂通过扰乱矿固体测量来降低太阳能电池的性能.
- 过量的FAI添加成功地恢复了最初的ABX3静脉测量,并恢复了设备的性能.
- 恢复所需的FAI量取决于添加剂是化物还是伪化物.
- 偏离理想体度,无论是FAI或化的过量或不足,设备性能迅速降低.
结论:
- 添加剂的加入显著影响矿吸收器的散体静态度.
- 保持精确的静电测量对于在PSC中实现最佳光伏性能至关重要.
- 这项研究为设计矿太阳能电池中有效的添加剂策略提供了基本的见解.
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