並列タイトル等In situ optical absorption spectroscopy of annealing behaviors of quench-deposited films in the binary system of CsI-PbI2
一般注記We have investigated annealing behaviors of quench-deposited films of the binary CsI-PbI2 system by in situ optical absorption spectroscopy. Various films composed of multiple crystalline phases of CsPbI3 and/or Cs4PbI6 as well as of CsI and/or PbI2 are obtained depending on the mixing ratio of the CsI and PbI2. It is difficult to prepare the films purely composed of a single CsPbI3 or Cs4PbI6 phase alone. However, it is possible to obtain films where crystallites of either CsPbI3 or Cs4PbI6 coexist with the CsI phase. Using such films, we measure the fundamental optical absorption spectrum of CsPbI3 and CsPbI6 for the first time.
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連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)