Tunable Quasi‐One‐Dimensional Ribbon Enhanced Light Absorption in Sb2Se3 Thin‐film Solar Cells Grown by Close‐Space Sublimation

• DOI: 10.1002/solr.201800128
• Publication Date: 2018-06-29T14:09:19Z
• Authors: Liping Guo; Baiyu Zhang; Ying Qin; Dawen Li; Lin Li; Xiaofeng Qian; Feng Yan
• Keywords: Sublimation; Ribbon; Absorbance; Deposition

The non‐cubic antimony chalcogenides, i.e., Sb 2 Se 3 , formed by quasi‐one‐dimensional ribbons can enhance light absorption and carrier transport tuning the ribbon direction using close‐space sublimation (CSS) deposition. improved device performance is found to be associated with direction, which was investigated theoretical calculation experimental optical measurement in films devices. Decent efficiency could achieved when were tuned as normal substrate possible. temperature film thickness are critical for fine‐tuning of orientations during CSS Our results show that [211]‐preferred orientation leads minimum series resistance highest absorbance device. This observation demonstrates ‐like materials van der Waals boundaries achieve scalable production at low cost hold great potential next‐generation solar cell recently developed vapor deposition technology.