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Chalcogenide Perovskite YScS 3 as a Potential p-Type Transparent Conducting Material
Chinese Physics Letters ( IF 3.5 ) Pub Date : 2020-09-13 , DOI: 10.1088/0256-307x/37/9/097201
Han Zhang 1, 2 , Chen Ming 2 , Ke Yang 3, 4 , Hao Zeng 5 , Shengbai Zhang 3 , Yi-Yang Sun 2
Affiliation  

Transparent conducting materials (TCMs) have been widely used in optoelectronic applications such as touchscreens, flat panel displays and thin film solar cells. These applications of TCMs are currently dominated by n-type doped oxides. High-performance p-type TCMs are still lacking due to their low hole mobility or p-type doping bottleneck, which impedes efficient device design and novel applications such as transparent electronics. Here, based on first-principles calculations, we propose chalcogenide perovskite YScS 3 as a promising p-type TCM. According to our calculations, its optical absorption onset is above 3 eV, which allows transparency to visible light. Its hole conductivity effective mass is 0.48 m 0 , which is among the smallest in p-type TCMs, suggesting enhanced hole mobility. It could be doped to p-type by group-II elements on cation sites, all of which yield shallow acceptors. Combining these properties, YScS 3 holds great prom...

中文翻译:

硫族钙钛矿YScS 3作为潜在的p型透明导电材料

透明导电材料(TCM)已广泛用于光电应用中,例如触摸屏,平板显示器和薄膜太阳能电池。TCM的这些应用目前主要由n型掺杂氧化物控制。由于它们的低空穴迁移率或p型掺杂瓶颈,仍然缺少高性能的p型TCM,这阻碍了有效的器件设计和诸如透明电子学的新颖应用。在这里,基于第一性原理的计算,我们提出硫属钙钛矿YScS 3作为有前途的p型中药。根据我们的计算,其光吸收起始点高于3 eV,这使可见光透明。其空穴电导有效质量为0.48 m 0,在p型TCM中最小,表明空穴迁移率提高。可以通过阳离子位点上的II类元素将其掺杂为p型,所有这些元素都会产生浅受体。结合这些特性,YScS 3具有出色的性能。
更新日期:2020-09-14
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