@article{CTT100831030,
  author = {Yukinori Nishigaki and Takayuki Nagai and Mitsutoshi Nishiwaki and Takuma Aizawa and Masayuki  Kozawa and Kota Hanzawa and Yoshitsune Kato and Hitoshi Sai and Hidenori Hiramatsu and Hideo Hosono and Hiroyuki Fujiwara},
  title = {Extraordinary Strong Band-Edge Absorption in Distorted Chalcogenide Perovskites},
  journal = {Solar RRL},
  year = 2020,
}