Purely organic optoelectronic materials with ultralong-lived excited states under ambient conditions  

作　　者：Jie Yuan Yuting Tang Shen Xu Runfeng Chen Wei Huang 

机构地区：[1]Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications [2]Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University

出　　处：《Science Bulletin》2015年第19期1631-1637,共7页科学通报（英文版）

基　　金：supported in part by the National Natural Science Foundation of China(21274065,21304049,61204048 and 51173081);The Ministry of Education of China(IRT1148);a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(YX03001);the Qing Lan Project of Jiangsu Province

摘　　要：The exponential growth of utilizing synthetic organic molecules in optoelectronic applications poses strong demands for rational control over the excited states of the materials. The manipulation of excited states through molecular design has led to the development of high-performance optoelectronic devices with tunable emission colors, high quantum efficiencies and efficient energy/charge transfer processes. Recently, a significant breakthrough in lifetime tuning of excited states has been made;the purely organic molecules were found to have ultralonglived excited state under ambient conditions with luminescence lifetimes up to 1.35 s, which are several orders of magnitude longer than those of conventional organic fluorophores. Given the conceptual advance in understanding the fundamental behavior of excited state tuning in organic luminescent materials, the investigations of organic ultralong room-temperature phosphorescence(OURTP) should provide new directions for researches and have profound impacts on many different disciplines. Here, we summarized the recent understandings on the excited state tuning, the reported OURTP molecules and their design considerations,the spectacular photophysical performance, and the amazing optoelectronic applications of the newly emerged organic optoelectronic materials that free of heavy metals.The exponential growth of utilizing synthetic organic molecules in optoelectronic applications poses strong demands for rational control over the excited states of the materials. The manipulation of excited states through molecular design has led to the development of high-per- formance optoelectronic devices with tunable emission colors, high quantum efficiencies and efficient energy/ charge transfer processes. Recently, a significant break- through in lifetime tuning of excited states has been made; the purely organic molecules were found to have ultralong- lived excited state under ambient conditions with lumines- cence lifetimes up to 1.35 s, which are several orders of magnitude longer than those of conventional organic fluo- rophores. Given the conceptual advance in understanding the fundamental behavior of excited state tuning in organic luminescent materials, the investigations of organic ultra- long room-temperature phosphorescence （OURTP） should provide new directions for researches and have profound impacts on many different disciplines. Here, we summarized the recent understandings on the excited state tuning, the reported OURTP molecules and their design considerations,the spectacular photophysical performance, and the amazing optoelectronic applications of the newly emerged organic optoelectronic materials that free of heavy metals.

关 键 词：Excited state tuning Lifetime manipulation OURTP Organic electronics Optoelectronic applications 

分 类 号：TN204[电子电信—物理电子学] O562.4[理学—原子与分子物理]