| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Progress in Novel Organic Electrofluorescence Materials |
| ZHU Qi, LI Yunhui, ZHAO Xuesen, GENG Aifang, MA Yuqin
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| School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022 |
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Abstract The organic light-emitting diodes (OLEDs) have aroused intense interests from researchers owing to their prospects as the next generation display and lighting technologies. Traditional fluorescent materials cannot obtain satisfactory efficiency because they only realize singlet exciton luminescence. In recent years, it has been a great breakthrough that the electrofluorescence materials utilizing triplet ections energy for radiation in organic electronics have been developed. According to the transformation mechanism of triplet excitons to singlet exciton, fluorescent materials can be divided into three types including triplet-triplet annihilation, thermally activated delayed fluorescence, hybridized local and charge transfer excited state. This article specially focuses on small molecule based purely organic electrofluorescence emitters with amazing device performances. It begins with the general situation of organic electrofluorescence devices, then gives an overview of the fluorescence emitters with various electrofluorescence mechanisms, and finally provides specific molecular design strategies towards high efficiency devices.
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Published: 18 October 2018
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2018, Vol. 32 
