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Beyond Perovskite Solar Cells: Tellurium Iodide as a Promising Light-Absorbing Material for Solution-Processed Photovoltaic Application.
Chemistry - An Asian Journal ( IF 4.1 ) Pub Date : 2020-04-07 , DOI: 10.1002/asia.202000262
Ahmed Ali Said 1 , Jian Xie 1 , Kexiang Zhao 1 , Wenbo Liu 1, 2 , Fei Yu 1 , Qichun Zhang 1
Affiliation  

Searching new light-absorbing materials to replace toxic lead halide in solar cells is very important and highly desirable. In this research, we firstly demonstrated that tellurium iodide (TeI4 ) could be used as a light-absorbing material in solar cells due to its suitable optical band gap and the active lone-pair electron orbital in Te4+ . The best power conversion efficiency (PCE=3.56%) was achieved with a concentration of 0.9 M TeI4 in DMF:DMSO (4 : 1, v,v) without any heat treatment or antisolvent dripping. Our study indicates the promising potential of TeI4 for photovoltaic and optoelectronic applications.

中文翻译:

钙钛矿太阳能电池以外的材料:碘化碲作为一种有前途的吸光材料,可用于溶液处理光伏应用。

寻找新的光吸收材料来代替太阳能电池中的有毒卤化铅是非常重要的,也是非常需要的。在这项研究中,我们首先证明了碘化碲(TeI4)可以用作太阳能电池中的光吸收材料,因为它具有合适的光学带隙和Te4 +中的活性孤对电子轨道。在DMF:DMSO(4:1,v,v)中浓度为0.9 M TeI4的情况下,无需进行任何热处理或滴加反溶剂,即可获得最佳的功率转换效率(PCE = 3.56%)。我们的研究表明TeI4在光伏和光电应用中具有广阔的发展潜力。
更新日期:2020-04-07
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