The application of a high boiling point dissolution solvent on a poly(N-vinylcarbazole) host toward improving the performance of blue electrophosphorescent devices via a solution process

doi:10.1039/c8tc00726h

CORC > 化学研究所 > 中国科学院化学研究所

	The application of a high boiling point dissolution solvent on a poly(N-vinylcarbazole) host toward improving the performance of blue electrophosphorescent devices via a solution process
	Yao, Bing 1,2; Liu, Lihui 1,4,5; Wang, Hailong 1,2; Zhang, Baohua 1,3; Yang, Qingqing 1; Liu, Xuejing 1; Xie, Zhiyuan 1
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2018-04-28
卷号	6 期号:16 页码:4427-4434
ISSN号	2050-7526
DOI	10.1039/c8tc00726h
英文摘要	The photophysics and charge transport properties of polymer host materials largely determine the resultant electroluminescent (EL) performance of solution-processed phosphorescent organic light-emitting diodes (s-PhOLEDs). Herein, these characteristics of the state-of-the-art polymer host material, i.e. poly(N-vinylcarbazole) (PVK), are manipulated via the choice of the processing solvent by means ofdifferent boiling points. Compared to the control PVK film (toluene as solvent), the PVK film with a high packing density processed with o-dichlorobenzene (ODCB) solvent displays a higher excitonic energy, i.e. the more the "p-PVK'' contribution, the lower the content of low energy PVK electromers under EL driving, and also a different hole transport capability. For the PVK:FIrpic doped film, it is confirmed that the host-to-guest energy transfer efficiency is the best for the ODCB based film among these samples. PVK:FIpric doped s-PhOLEDs are comparatively fabricated by using these solvents, and the ODCB based device achieves a high luminous efficiency of 29.0 cd A(-1), corresponding to 16% enhancement with respect to 25 cd A(-1) of the control TOL device. Such performance promotion is attributed to the satisfied energy transfer process from PVK to FIrpic and also the enhanced charge balance conditions achieved in the ODCB device.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000433512000009
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/42789]
专题	中国科学院化学研究所
通讯作者	Zhang, Baohua; Xie, Zhiyuan
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Guangzhou Univ, Sch Chem & Chem Engn, Ctr Adv Analyt Sci, Guangzhou 510006, Guangdong, Peoples R China 4.Nanjing Univ Posts & Telecommun, IAM, Key Lab Organ Elect & Informat Displays, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China 5.Nanjing Univ Posts & Telecommun, IAM, Jiangsu Key Lab Biosensors, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yao, Bing,Liu, Lihui,Wang, Hailong,et al. The application of a high boiling point dissolution solvent on a poly(N-vinylcarbazole) host toward improving the performance of blue electrophosphorescent devices via a solution process[J]. JOURNAL OF MATERIALS CHEMISTRY C,2018,6(16):4427-4434.
APA	Yao, Bing.,Liu, Lihui.,Wang, Hailong.,Zhang, Baohua.,Yang, Qingqing.,...&Xie, Zhiyuan.(2018).The application of a high boiling point dissolution solvent on a poly(N-vinylcarbazole) host toward improving the performance of blue electrophosphorescent devices via a solution process.JOURNAL OF MATERIALS CHEMISTRY C,6(16),4427-4434.
MLA	Yao, Bing,et al."The application of a high boiling point dissolution solvent on a poly(N-vinylcarbazole) host toward improving the performance of blue electrophosphorescent devices via a solution process".JOURNAL OF MATERIALS CHEMISTRY C 6.16(2018):4427-4434.