2019年6月22日 Effect of Ag/Sn ratio for Ag8SnS6 thin films The 7th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies Yoji Akaki, Tomohiro Uchimura, Issei Hazama, Shigeyuki Nakamura, Hedeaki Araki, Satoru Seto, Toshiyuki Yamaguch