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在Cu₂ZnSn(S,Se) ₄太阳能电池的后面接口构建载体收集框架,通过化插入的CuBi₂O₄纳米层

Xueyun Zhang¹, Yixiong Ji², Jialiang Huang¹

¹School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney 2052, New South Wales, Australia.

ACS applied materials & interfaces

|April 29, 2025

概括

一个超薄的铜氧化物 (CuBi2O4) 纳米层提高了铜硫化硫化 (CZTSSe) 太阳能电池的效率. 这一层提高了吸收器质量和后面接口特性,从而提高了光伏性能.

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.
纳米技术纳米技术

背景情况:

铜锡硫化硫化 (CZTSSe) 是用于低成本,高效的光伏设备的有希望的材料.
提高CZTSSe太阳能电池的性能通常需要优化吸收层和后接触接口.
在后面接口上的缺陷和不良载体传输可以限制CZTSSe太阳能电池的整体效率.

研究的目的:

研究超薄CuBi2O4 (CBO) 纳米层对CZTSSe光伏电池性能的影响.
了解CBO层如何影响CZTSSe吸收器形成和后面接口的特性.
通过接口工程来提高CZTSSe太阳能电池的整体功率转换效率.

主要方法:

在Mo回接口和CZTSSe吸收器之间插入超薄CBO纳米层的CZTSSe光伏设备的制造.
高温回火以诱导CBO层的分解和有益的二次相的形成.
描述CZTSSe吸收层的形态,粒径和组成.
对后面接口的电气性能和载体传输机制的分析.

主要成果:

CBO纳米层促进了形成一个更紧的CZTSSe吸收层,颗粒大小更大.
在化过程中,CBO层的分解导致在后面接口形成Cu-doped胺化物.
Cu-doped bismuth selenide层改善了载体运输,并增强了CZTSSe后面接口的电气性能.
在关键光伏参数中观察到显著的改善,导致太阳能电池的整体效率更高.

结论:

超薄的CBO纳米层作为一种有效的接口层,可以提高CZTSSe太阳能电池的性能.
该CBO层有助于提高吸收器质量,并在后接触处进行有益的修改.
这种方法提供了一个可行的策略,以提高基于CZTSSe的光伏设备的效率.

关键词:

在 CZTSSe 太阳能电池.在CuBi2O4 (CBO) 中.中间层是一个中间层.消极化是一种被动化.背面接口的接口是后面的

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