Tunable Quasi-One-Dimensional Ribbon Enhanced Light Absorption in Sb2Se3 Thin-film Solar Cells Grown by Close-Space Sublimation Academic Article uri icon

abstract

  • The noncubic antimony chalcogenides, i.e., Sb2Se3, formed by quasionedimensional ribbons can enhance light absorption and carrier transport by tuning the ribbon direction using the closespace sublimation (CSS) deposition. The improved device performance is found to be associated with the ribbon direction, which was investigated with theoretical calculation and experimental optical measurement in the Sb2Se3 films and devices. Decent device efficiency could be achieved when the ribbons were tuned to be as normal to the substrate as possible. The substrate temperature and film thickness are critical for the finetuning of ribbon orientations during the CSS deposition. Our results show that [211]preferred orientation leads to the minimum series resistance and highest light absorbance in the device. This observation demonstrates that Sb2Se3like quasionedimensional materials with van der Waals boundaries can achieve scalable production at low cost and hold great potential for nextgeneration solar cell using the recently developed vapor transport deposition technology.

published proceedings

  • SOLAR RRL

author list (cited authors)

  • Guo, L., Zhang, B., Qin, Y., Li, D., Li, L., Qian, X., & Yan, F.

citation count

  • 61

complete list of authors

  • Guo, Liping||Zhang, Baiyu||Qin, Ying||Li, Dawen||Li, Lin||Qian, Xiaofeng||Yan, Feng

publication date

  • October 2018

publisher