A Versatile Solution Route to Efficient Cu2ZnSn(S,Se)4 Thin-Film Solar Cells
A Versatile Solution Route to Efficient Cu2ZnSn(S,Se)4 Thin-Film Solar Cells
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DOI：
10.1021/cm504654t
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发表时间：
2015-03-24
影响因子：
8.6
通讯作者：
Agrawal, Rakesh
中科院分区：
文献类型：
--
作者：
Zhang, Ruihong;Szczepaniak, Stephen M.;Agrawal, Rakesh
提出了一种简单的基于溶液的方法，用胺硫醇混合物沉积了Cu2ZnSn2(S，Se)(4)。这种溶剂混合物在溶解不同阳离子来源和硫化物方面的多功能性为各种金属硫化物分子前驱体设计打开了大门。该工艺包括在室温下将金属源和硫化物加入胺硫醇溶剂混合物中，旋涂前驱体薄膜，并在惰性气体和硒气氛中对前驱体薄膜进行热处理。采用这种溶液方法，经过低温退火和硒处理后，得到了高质量的钾锌矿CZTS和CZTSSe薄膜。基于这些CZTSSe薄膜制备了太阳能电池，在标准AM 1.5光照下，电池面积为0.47 cm(2)时，总面积功率转换效率为7.86%。
A simple solution-based approach for the deposition of Cu2ZnSn(S,Se)(4) using an amine thiol mixture is presented. The versatility of this solvent mixture in dissolving different cation sources and chalcogens opens the door for a variety of metal chalcogenide molecular precursor designs. The process involves incorporating the metal sources and chalcogens into an amine thiol solvent mixture at room temperature, spin coating a precursor film, and heat-treating precursor films in both an inert gas and selenium atmosphere. With this solution approach, high-quality kesterite CZTS and CZTSSe thin films were formed after low-temperature annealing and selenization. Solar cells were fabricated based on these CZTSSe thin films, resulting in a total area power conversion efficiency of 7.86% for a cell area of 0.47 cm(2) under standard AM 1.5 illumination.