Effect of Post-Deposition Annealing on the Performance of Antimony Selenide Solar Cells

Alisha Adhikari, Suman Rijal, Joel Blodgett, Sabin Neupane, Manoj K Jamarkattel, Nadeesha Katakumbura, Tamanna Mariam, Kshitiz Dolia, Michael J Heben, Randy J Ellingson, Zhaoning Song, Yanfa Yan University of Toledo, Toledo, OH, United States

Antimony Selenide (Sb2Se3) has emerged as a promising thin-film photovoltaic material due to its low-cost constituents, low toxicity, earth abundance, and excellent optoelectronic properties. Here, we report on the fabrication of Sb2Se3 solar cells using a hydrothermal approach followed by a post-annealing treatment at different temperatures. The impact of annealing temperatures on the overall device performance of Sb2Se3 solar cells is investigated. The optimization of annealing temperature improved the power conversion efficiency (PCE) from 5.21% to 7.63%.