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扫描道光谱法用于预测半导体异质连接性能,作为设备开发的前身

Thiago C Ribeiro¹, Daniel H S Fonseca¹, Rafael Reis Barreto¹

¹Departament of Physics, Federal University of Minas Gerais, Belo Horizonte, MG 30123-970, Brazil.

ACS applied materials & interfaces

|December 20, 2023

概括

预测太阳能电池的性能是关键. 扫描道光谱 (STS) 揭示了硫化 (GeS) 和硫化 (SnS2) 薄膜中的兴奋剂变异,在设备制造之前确定了限制.

科学领域:

材料科学材料科学材料科学
固态物理固态物理
设备物理设备物理

背景情况:

半导体设备性能预测具有挑战性.
在制造之前预测设备规格对于效率至关重要.
了解材料特性对于开发新型太阳能电池至关重要.

研究的目的:

使用扫描道显微镜 (STM) 和光谱镜 (STS) 调查太阳能电池的组成部分.
确定硫化物 (GeS) 和锡二硫化物 (SnS2) 薄膜中的剂类型的空间分布.
在加工之前确定太阳能电池效率的内在限制.

主要方法:

使用扫描道显微镜 (STM) 和光谱 (STS) 来分析薄膜.
为每个半导体薄膜生成单独的STS地图.
进行频段差距和兴奋剂分布的统计分析.
通过蒸汽相沉积使用GeS和SnS2制造太阳能电池.
在黑暗/照明条件下使用J-V曲线进行表征的设备.

主要成果:

确定了p-doping在GeS和n-doping在SnS2中的空间分布.
确定太阳能电池效率因兴奋剂波动而导致的内在限制.
尽管效率降低,但观察到稳定的光电响应.
量子效率测量显示,高峰效率在一个新的范围.

结论:

通过STS方法,可以预测新材料结合的内在限制.
由于缺陷,粗或隔离而导致的兴奋剂波动会影响设备的效率.
开发的STS方法是预防性太阳能电池开发的宝贵工具.
该研究强调了GeS/SnS2异质连接在特定太阳能应用中的潜力.

关键词:

两维材料是二维材料.扫描道显微镜和光谱镜.半导体半导体半导体太阳能电池是太阳能电池中的一个.蒸汽运输沉积蒸汽运输沉积

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