Direct measurement of coherent phonon dynamics in solution-processed stibnite thin films

• Main Authors: Mathews, Nripan, Gan, Chee Kwan, Chong, Wee Kiang, Xing, Guichuan, Liu, Yun, Gui, Ee Ling, Zhang, Qing, Xiong, Qihua, Sum, Tze Chien
• 其他作者: School of Electrical and Electronic Engineering
• 格式: Article
• 語言: English
• 出版: 2014
• 主題: DRNTU::Science::Physics
• 在線閱讀: https://hdl.handle.net/10356/104898; http://hdl.handle.net/10220/20395
• 機構: Nanyang Technological University

We report observations of coherent phonon oscillations in solution-processed polycrystalline stibnite (Sb2S3) photovoltaic thin films using transient absorption spectroscopy. Detailed optical spectroscopy correlated by extensive first-principles lattice dynamics calculations indicates that the coher...