通过最大限度地减少通过前后表面纹理的光学损失,提高石墨烯/AlGaAs/GaAs Schottky交叉太阳能电池的效率
Farzaneh Shahnooshi1, Ali A Orouji2
1Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran.
Scientific reports
|July 2, 2025
概括
这项研究通过优化前面表面纹理和整合纹理后面表面场 (BSF) 层来增强石墨烯/AlGaAs/n-GaAs太阳能电池. 这些改进大大提高了先进光伏应用的光吸收和效率.
科学领域:
- 太阳能光伏发电是如何实现的
- 材料科学 材料科学 材料科学
- 半导体设备 半导体设备
背景情况:
- 化 (GaAs) 太阳能电池看起来很有前途,但受到表面反射,减少电子孔对生成和光吸收差的影响.
- 石墨烯 (Gr) /AlGaAs/n-GaAs异质连接 肖特基太阳能电池在光伏研究中具有独特的结构.
研究的目的:
- 研究石墨烯 (Gr) /AlGaAs/n-GaAs太阳能电池的结构,光学和电气性能.
- 通过前面表面纹理和后面表面场 (BSF) 层优化来提高太阳能电池的性能.
主要方法:
- 优化了前面表面的纳米/微纹理,以改善光线管理.
- 整合一个n+-InAl0.65Ga0.35P的背面表面场 (BSF) 层.
- 对BSF层进行纹理,以增强内部反射和捕捉光线.
主要成果:
- 一个有纹理的前面表面 (1μm周期,600nm深度) 实现了短路电流密度 (JSC) 23.51 mA/cm2,开放电路电压 (VOC) 0.97 V,功率转换效率 (PCE) 19.99%.
- 增加BSF层增加了3%的PCE,这是由于异质连接处的强电场造成的.
- BSF层的纹理进一步增强了光散射和低能光子的吸收,导致最终的PCE为25.37%.
结论:
- 前面表面纹理和BSF层优化是提高GaAs太阳能电池性能的有效策略.
- 拟议的结构表明了高性能,高性价比的超薄GaAs太阳能电池的潜力.
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