无硫CuInSe2的分子前体方法:在可溶性金属复合体中取代硫协调
Jonathan W Turnley1, Swapnil D Deshmukh1, Victoria M Boulos2
1Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States.
ACS omega
|December 18, 2023
概括
研究人员使用分子前体方法开发了无硫铜化 (CuInSe2) 薄膜. 这种方法可以制造更厚,高质量的CuInSe2吸收器,而无需细粒层,从而推进薄膜太阳能电池技术.
科学领域:
- 材料科学 材料科学 材料科学
- 薄膜技术 薄膜技术
- 太阳能光伏发电是如何实现的
背景情况:
- 溶液处理的铜化 (CuInSe2) 薄膜通常会由于硫化物/硫化前体而产生细粒度层,从而限制薄膜厚度.
- 降低前体中的硫含量可以改变谷物生长,可能使更厚,无缺陷的吸收剂.
研究的目的:
- 开发一种无硫分子前体方法,用于溶液加工的CuInSe2膜.
- 为了研究CuInSe2沉积的可溶性金属硫酸盐复合物的形成和特性.
- 为了获得厚厚的,高质量的CuInSe2薄膜,而没有细粒层.
主要方法:
- 调整一个氨基-醇反应溶剂系统 (n-丁胺和1,2-乙乙醇) 来溶解 (III) 化物和.
- 使用分析技术研究通过沉的可溶性复合物形成和改变.
- 将铜化物作为铜源用于制造分子前体墨水.
主要成果:
- 通过反应溶解形成金属硫酸盐物种,根据含量进行调整.
- 通过控制复合物中的硫醇含量来分离可溶[InSe2]-物种.
- 成功制造了无硫CuInSe2前体薄膜,并控制了颗粒的生长.
- 达到2μm或更大的薄膜厚度,不形成细粒层.
结论:
- 分子前体方法为无硫CuInSe2膜提供了一条可行的途径.
- 这种方法克服了传统前体的局限性,使得更厚,高质量的吸收层成为可能.
- 开发的技术对推进溶液加工薄膜太阳能电池具有前景.
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