Fabrication of the bandgap-tuned alkaline earth-alloyed SnS solar cell

Fumio Kawamura; Yelim Song; Hidenobu Murata; Hitoshi Tampo; Takehiko Nagai; Takashi Koida; Jaeeun Jeon; Masataka Imura; Naoomi Yamada

doi:10.2109/jcersj2.22162

Feature: Frontiers in Ceramic Research Based on Materials Science of Crystal Defect Cores: Full papers

Fabrication of the bandgap-tuned alkaline earth-alloyed SnS solar cell

Fumio Kawamura, Yelim Song, Hidenobu Murata, Hitoshi Tampo, Takehiko Nagai, Takashi Koida, Jaeeun Jeon, Masataka Imura, Naoomi Yamada

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Keywords: Tin sulfide, Solar cell, Alkaline earth metal alloyed, Widegap, Sputtering

JOURNAL OPEN ACCESS

2023 Volume 131 Issue 10 Pages 708-711

DOI https://doi.org/10.2109/jcersj2.22162

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Abstract

Alkaline earth (AE) metal-alloyed SnS films with a bandgap of 1.8 eV were demonstrated to us promising for their use in widegap photovoltaic absorbers by forming a p-n junction with an n-type CdS layer. The Ba-alloyed-SnS film exhibited the highest efficiency among the three types of AE-alloyed SnS films (barium, calcium, and strontium alloyed-SnS films). Electricity generation by the formation of the junction of p-AE-alloyed SnS/n-CdS indicates the possibility of realizing Si-based tandem solar cells.

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