超快激光光谱学
激发态
光伏系统
光谱学
瞬态(计算机编程)
吸收光谱法
吸收(声学)
分子
材料科学
原子物理学
动力学(音乐)
化学物理
化学
分子物理学
分析化学(期刊)
光化学
物理
光学
计算机科学
工程类
电气工程
量子力学
有机化学
声学
操作系统
作者
Suman Dhami,Yogesh Kumar,Chaitrali Sengupta,Ravindra Pandey
摘要
Nonfullerene polyaromatic molecules such as perinone are emerging as alternatives to fullerene derivatives due to their low manufacturing cost, ease of functionalization, and processing to improve the efficiency of optoelectronic devices. In this paper, we have used ultrafast transient absorption (TA) spectroscopy to probe the excited state dynamics in cis and trans perinone molecules. We have performed TA measurements in solution as well as thin films to provide a comprehensive understanding of excited-state processes occurring in cis and trans perinone molecules. Our results reveal the triplet state formation in perinone thin films through intersystem crossing and provide an in-depth understanding of the relaxation pathways of perinone molecules, which will be beneficial for designing and optimizing the device efficiencies of perinone based photovoltaic devices.
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