Meta-substituted bipolar imidazole based emitter for efficient non-doped deep blue organic light emitting devices with a high electroluminescence

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Meta-substituted bipolar imidazole based emitter for efficient non-doped deep blue organic light emitting devices with a high electroluminescence
	Islam, Amjad ; Usman, Khurram ; Wattoo, Abdul Ghafar ; Shahid, Tauseef ; Abbas, Nadeem ; Sharif, Hafiz Muhammad Adeel ; Siddique, Ahmad Hassan ; Ahmed, Manan ; Ge, Ziyi ; Ouyang, Xinhua
刊名	JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
	2019-06-15
卷号	379 页码:72-78
关键词	Benzimidazole Phenanthroimidazole Bipolar Deep blue Electroluminescence OLED
ISSN号	1010-6030
英文摘要	Enormous endeavors have been made to explore pure and efficient deep-blue electroluminescent materials for organic light emitting devices (OLEDs). However, materials with deep-blue emission and high efficiencies for non-doped OLED devices are still limited. In view of this, a novel ambipolar meta-substituted emitter (TPA-BIPI) is synthesized by combining phenanthroimidazole, benzimidazole and triphenyl-amine units for OLED devices. Non-doped OLED device is constructed by employing TPA-BIPI as emitter which gives deep-blue emission at 442 rim with CIE of (0.149, 0.105). The EQE of the device is obtained to be as high as 4.53% with the current efficiency (CE) of 4.3 cd/A and a power efficiency (PE) of 3.71m/W. A low driven voltage of 3.4 V, a reduced efficiency roll-off and a high electroluminescence of 12,491 cd/m(-2) is also achieved. This combination of donor and acceptor moieties indicates a strong potential to prepare efficient bipolar materials for OLEDs.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43387]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
作者单位	1.Fujian Agr & Forestry Univ, Coll Mat Engn, Fuzhou 350002, Fujian, Peoples R China 2.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China 3.South China Normal Univ, Int Acad Oproelect Zhaoqing, Guangzhou, Guangdong, Peoples R China 4.Khawaja Fareed Univ Engn & Informat Technol, Dept Phys, Rahim Yar Khan 64200, Pakistan 5.Shenzhen Univ, Shenzhen Key Lab Adv Funct Mat, Mat Sch, Shenzhen 518060, Peoples R China
推荐引用方式 GB/T 7714	Islam, Amjad,Usman, Khurram,Wattoo, Abdul Ghafar,et al. Meta-substituted bipolar imidazole based emitter for efficient non-doped deep blue organic light emitting devices with a high electroluminescence[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2019,379:72-78.
APA	Islam, Amjad.,Usman, Khurram.,Wattoo, Abdul Ghafar.,Shahid, Tauseef.,Abbas, Nadeem.,...&Ouyang, Xinhua.(2019).Meta-substituted bipolar imidazole based emitter for efficient non-doped deep blue organic light emitting devices with a high electroluminescence.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,379,72-78.
MLA	Islam, Amjad,et al."Meta-substituted bipolar imidazole based emitter for efficient non-doped deep blue organic light emitting devices with a high electroluminescence".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 379(2019):72-78.