[23a-E106-1~11] 13.9 Compound solar cells

[23a-E106-6] Improvement of conversion efficiency of n-type SnS single crystal/MoO₃ solar cells

〇ISSEI SUZUKI¹, Zexin Lin¹, Taichi Nogami¹, Sakiko Kawanishi¹, Takahisa Omata¹ (1.Tohoku Univ.)

Keywords:SnS, Solar cells

Tin sulfide (SnS) is a promising solar cell material, which is consisted of only non-toxic and abundant elements. The solar cells involing n-type SnS single-crystal/MoO₃ junction are expected as new device structure that can provide high open-circuit voltage (V_OC). However, the devices employing this structure so far have not shown the expected high performance. In this study, we investigated the effects of the electrical conductivity of the MoO₃ layer and the impurity concentration in the SnS single crystal on the output characteristics, aiming to improve the conversion efficiency of n-type SnS/MoO₃ junction solar cells.