锡化佩洛夫斯基特太阳能电池具有接近Shockley-Queisser极限的开放电路电压
Wentao Liu1, Shuaifeng Hu1, Jorge Pascual1
1Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
ACS applied materials & interfaces
|June 28, 2023
概括
通过溶剂工程优化印-C60双 (ICBA) 薄膜,显著降低了基矿太阳能电池中的能量障碍. 这导致了更高的开放电路电压,并提高了无设备的功率转换效率.
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:
- 基化矿太阳能电池提供了无的替代方案,但由于能量水平与烯C60电子传输层不对齐,因此遭受光伏损失.
- 印-C60双 (ICBA) 显示出更好的能量调整的希望,但其固有的能量障碍限制了设备的性能.
研究的目的:
- 改进ICBA薄膜的形态和电气性能,用于基矿太阳能电池.
- 为了减少ICBA膜中的能量干扰,并提高设备光伏和功率转换效率.
主要方法:
- 优化溶剂选择和ICBA薄膜制造的回火温度.
- 描述ICBA薄膜形态,电性质和能量障碍 (状态的电子密度).
- 基矿太阳能电池的制造和测试,采用优化的ICBA层,具有和没有表面被动化.
主要成果:
- 制造的ICBA薄膜表现出改善的形态和电性质,能量障碍大大减少 (22 meV较窄的电子密度).
- 锡基矿太阳能电池实现了高达1.01V的开放电路电压,是此类设备报告的最高电压之一.
- 优化的ICBA薄膜与表面被动化相结合,导致功率转换效率高达11.57%.
结论:
- 控制像ICBA这样的电子传输材料的特性对于开发高效的无矿太阳能电池至关重要.
- 溶剂工程是优化ICBA薄膜处理和提高矿太阳能电池性能的一种可行的策略.
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