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化拉德尔斯登 - 波珀矿的结构异构体 面向高效和稳定的2D/3D矿太阳能电池
Junseop Byeon1,2, Seong Ho Cho1,3, Junke Jiang4
1Department of Mechanical Engineering, Seoul National University, Seoul 08826, Republic of Korea.
ACS applied materials & interfaces
|June 5, 2023
概括
在二维矿间隔器中改变化位置可以提高太阳能电池的性能. 这种结构变化改善了电荷传输,并消除了3D矿太阳能电池的缺陷,提高了效率和稳定性.
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
- 化学工程是化学工程的重要组成部分.
背景情况:
- 双维 (2D) 层叠矿被用于使3D散装矿太阳能电池中的缺陷无源化,从而提高稳定性和效率.
- 在二维矿中对有机间隔剂的化赋予了疏水性,并改善了缺陷被动化.
研究的目的:
- 为了研究二维矿间隔器中异构体的构造变化如何影响光电性质.
- 探索甲基和准三甲基 (CF3) 基在乙 (PEAI) 间隔器上的潜力,作为矿太阳能电池中的接口修饰剂.
主要方法:
- 使用meta-CF3-PEAI和para-CF3-PEAI间隔器合成2D矿.
- 2D/3D矿太阳能电池异构结构的制造和表征.
- 对电荷传输,陷状态抑制和能量对齐的实验分析.
- 理论模拟用于验证实验发现.
主要成果:
- 在PEAI间隔器上的不同化位置 (meta-vs. para-CF3) 会导致二维矿具有不同的光电特性.
- 基于meta-CF3-PEAI的2D矿增强了平面外的电荷传输,并抑制了3D矿吸收器中的陷状态.
- 由于化异构的改变分子间相互作用和层间间距影响了2D/3D异构结构的特性.
- 实验结果被理论模拟证实.
结论:
- 在间隔离子上的化结构异构体为控制矿太阳能电池性能提供了可调节的策略.
- 超-CF3-PEAI间距器表现出卓越的性能,表明其在2D/3D矿太阳能电池中提高效率和稳定性的潜力.
- 控制间距结构和层间距对于优化矿太阳能电池设备至关重要.
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