Thermally Activated Delayed Fluorescence Pendant Copolymers with Electron- and Hole-Transporting Spacers

doi:10.1021/acsami.8b00136

CORC > 化学研究所 > 中国科学院化学研究所

	Thermally Activated Delayed Fluorescence Pendant Copolymers with Electron- and Hole-Transporting Spacers
	Li, Chensen 1; Wang, Yukun 2,3; Sun, Dianming 1; Li, Huihui 1; Sun, Xiaoli 1; Ma, Dongge 4; Ren, Zhongjie 1; Yan, Shouke 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2018-02-14
卷号	10 期号:6 页码:5731-5739
关键词	Thermally Activated Delayed Fluorescence Copolymers Hole-transporting Electron-transporting Organic Light-emitting Diodes Photophysical Properties
ISSN号	1944-8244
DOI	10.1021/acsami.8b00136
英文摘要	To study the effect of hole- and electron-transporting spacers in copolymers on the thermally activated delayed fluorescence (TADF) properties and device efficiency of copolymers, two series of copolymers PCzPT-x and POPT-x have been designed and synthesized successfully. In these copolymers, 2-(10H-phenothiazin-10-yl)dibenzothiophene-S,S-dioxide units give green-yellow TADF, while hole-transporting 9-(4-vinylphenyl)-9H-carbazole units or electron-transporting diphenyl(4-vinylphenyl)phosphine oxide act as spacers or hosts. Their thermal, electrochemical, photo-physical, and electroluminescent properties and theoretical calculations are systematically investigated to illustrate the relationships between molecular structures and photophysical properties. By optimizing the upconversion and radiative decay rate and managing the energy transfer, a green-yellow device based on POPT-25 achieves a maximum external quantum efficiency of 5.2%, a current efficiency of 16.8 cd/A, and a power efficiency of 7.8 lm/W with CIE coordinates of (0.36, 0.50). Moreover, an external quantum efficiency of 3.5% at the practical luminescence of 100 cd/m(2) is obtained.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000425572700066
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45711]
专题	中国科学院化学研究所
通讯作者	Ren, Zhongjie; Yan, Shouke
作者单位	1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Univ Chinese Acad Sci, Beijing 10039, Peoples R China 4.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Li, Chensen,Wang, Yukun,Sun, Dianming,et al. Thermally Activated Delayed Fluorescence Pendant Copolymers with Electron- and Hole-Transporting Spacers[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(6):5731-5739.
APA	Li, Chensen.,Wang, Yukun.,Sun, Dianming.,Li, Huihui.,Sun, Xiaoli.,...&Yan, Shouke.(2018).Thermally Activated Delayed Fluorescence Pendant Copolymers with Electron- and Hole-Transporting Spacers.ACS APPLIED MATERIALS & INTERFACES,10(6),5731-5739.
MLA	Li, Chensen,et al."Thermally Activated Delayed Fluorescence Pendant Copolymers with Electron- and Hole-Transporting Spacers".ACS APPLIED MATERIALS & INTERFACES 10.6(2018):5731-5739.