Pure Organic Emitter with Simultaneous Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence: Thermal-Controlled Triplet Recycling Channels

doi:10.1002/adom.201700644

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	Pure Organic Emitter with Simultaneous Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence: Thermal-Controlled Triplet Recycling Channels
	Yu, Ling 1; Wu, Zhongbin 2; Zhong, Cheng 1; Xie, Guohua 1; Zhu, Zece 1; Ma, Dongge 2,3; Yang, Chuluo 1
刊名	ADVANCED OPTICAL MATERIALS
	2017-12-15
卷号	5 期号:24
关键词	Organic Light-emitting Diodes Room-temperature Phosphorescence Thermally Activated Delayed Fluorescence Threshold Temperature
ISSN号	2195-1071
DOI	10.1002/adom.201700644
英文摘要	A new route to utilize the triplet excitons by simultaneous thermally activated delayed fluorescence (TADF) and phosphorescence is demonstrated for a new quinoxaline/phenoxazine hybrid emitter. Moreover, the two triplet recycling channels are thermally controlled, and a clear threshold temperature of 170 K is observed. Below the threshold temperature, direct triplet radiation (phosphorescence) is the dominant process. In contrast, the channel of upconversion through intersystem crossing is activated above the threshold and the resulting TADF gradually becomes the predominant process. By using the new compound as emitter in organic light-emitting diodes, a high external quantum efficiency of 16.8% is far beyond the theoretical limit of the traditional fluorescent emitters.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000418123300005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45217]
专题	中国科学院化学研究所
通讯作者	Ma, Dongge; Yang, Chuluo
作者单位	1.Wuhan Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, Hubei, Peoples R China 2.Univ Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China 3.South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Yu, Ling,Wu, Zhongbin,Zhong, Cheng,et al. Pure Organic Emitter with Simultaneous Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence: Thermal-Controlled Triplet Recycling Channels[J]. ADVANCED OPTICAL MATERIALS,2017,5(24).
APA	Yu, Ling.,Wu, Zhongbin.,Zhong, Cheng.,Xie, Guohua.,Zhu, Zece.,...&Yang, Chuluo.(2017).Pure Organic Emitter with Simultaneous Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence: Thermal-Controlled Triplet Recycling Channels.ADVANCED OPTICAL MATERIALS,5(24).
MLA	Yu, Ling,et al."Pure Organic Emitter with Simultaneous Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence: Thermal-Controlled Triplet Recycling Channels".ADVANCED OPTICAL MATERIALS 5.24(2017).