Sequential Coevaporation and Deposition of Antimony Selenosulfide Thin Film for Efficient Solar Cells
Sequential Coevaporation and Deposition of Antimony Selenosulfide Thin Film for Efficient Solar Cells
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DOI：
10.1002/adma.202006689
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发表时间：
2021-02
影响因子：
29.4
通讯作者：
Yiwei Yin;Chenhui Jiang;Yuyuan Ma;R. Tang;Xiaomin Wang;Lijian Zhang;Zhiqiang Li;Changfei Zhu;T. Chen
中科院分区：
文献类型：
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作者：
Yiwei Yin;Chenhui Jiang;Yuyuan Ma;R. Tang;Xiaomin Wang;Lijian Zhang;Zhiqiang Li;Changfei Zhu;T. Chen
硫化锑(Sb_2(S，Se)_3)是一种新型的低成本、无毒、禁带宽度合适、吸收系数高的太阳能材料。开发有效的制备高质量薄膜的方法，将有助于提高器件效率，加深对光电特性的基本认识。在这里，开发的设备允许在反应过程中在线引入前驱体蒸汽，使得能够连续共蒸发Sb_2Se_3和S粉末以沉积Sb_2(S，Se)_3薄膜。利用这一独特的能力，揭示了沉积顺序对吸收膜的界面性质和光电性质的影响。获得了8.0%的功率转换效率，是气相沉积Sb2(S，Se)3太阳电池中的最大值。研究表明，多源顺序共蒸发是制备高效率Sb2(S，Se)3太阳电池的有效方法。
Antimony selenosulfide (Sb2(S,Se)3) is an emerging low‐cost, nontoxic solar material with suitable bandgap and high absorption coefficient. Developing effective methods for fabricating high‐quality films would benefit the device efficiency improvement and deepen the fundamental understanding on the optoelectronic properties. Herein, equipment is developed that allows online introduction of precursor vapor during the reaction process, enabling sequential coevaporation of Sb2Se3 and S powders for the deposition of Sb2(S,Se)3 thin films. With this unique ability, it is revealed that the deposition sequence manipulates both the interfacial properties and optoelectronic properties of the absorber film. A power conversion efficiency of 8.0% is achieved, which is the largest value in vapor‐deposition‐derived Sb2(S,Se)3 solar cells. The research demonstrates that multi‐source sequential coevaporation is an efficient technique to fabricate high‐efficiency Sb2(S,Se)3 solar cells.