Photoluminescence characterization of Cu2 GeS3 bulk crystals Aihara, Naoya ; Matsumoto, Yusuke ; Tanaka, Kunihiko Abstract Publication: Physica Status Solidi B Basic Research Pub Date: June 2017 DOI: 10.1002/pssb.201700118 Bibcode: 2017PSSBR.25400118A