气候变化领域集成服务门户(CCPortal): Hydrogen bond modulation in 1,10-phenanthroline derivatives for versatile electron transport materials with high thermal stability, large electron mobility and excellent n-doping ability

CCPortal

DOI	10.1016/j.scib.2019.11.005
	Hydrogen bond modulation in 1,10-phenanthroline derivatives for versatile electron transport materials with high thermal stability, large electron mobility and excellent n-doping ability
	Bin Z.; Shi D.; Su R.; Han W.; Zhang D.; Duan L.
发表日期	2020
ISSN	20959273
起始页码	153
结束页码	160
卷号	65 期号:2
英文摘要	4,7-Bisphenyl-1,10-phenanthroline (BPhen) is a promising electron transport material (ETM) and has been widely used in organic light-emitting diodes (OLEDs) because of the large electron mobility and easy fabrication process. However, its low glass transition temperature would lead to poor device stability. In the past decades, various attempts have been carried out to improve its thermal stability though always be accomplished by the reduced electron mobility. Here, we present a molecular engineering to modulate the properties of BPhen, and through which, a versatile BPhen derivative (4,7-bis(naphthalene-β-yl)-1,10-phenanthroline, β-BNPhen) with high thermal stability (glass transition temperature = 111.9 °C), large electron mobility (7.8 × 10−4 cm2/(V s) under an electrical field of 4.5 × 105 V/cm) and excellent n-doping ability with an air-stable metal of Ag is developed and used as multifunctional layers to improve the efficiency and enhance the stability of OLEDs. This work elucidates the great importance of our molecular engineering methodology and device structure optimization strategy, unlocking the potential of 1,10-phenanthroline derivatives towards practical applications. © 2019 Science China Press
关键词	Electron transport material Exciplex N-doping Organic light-emitting diodes Phenanthroline
英文关键词	Electron mobility; Electron transport properties; Glass; Glass transition; High temperature engineering; Hydrogen bonds; Naphthalene; Stability; Structural optimization; Temperature; Thermal Engineering; Thermodynamic stability; Device structure optimization; Electron transport materials; Exciplexes; High thermal stability; Low glass transition temperatures; N-Doping; Organic light emitting diodes(OLEDs); Phenanthrolines; Organic light emitting diodes (OLED)
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206991
作者单位	Key Laboratory of Organic Optoelectronics and Department of Chemistry, Tsinghua University, Beijing, 100084, China; College of Chemistry, Sichuan University, Chengdu, 610064, China; Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, China
推荐引用方式 GB/T 7714	Bin Z.,Shi D.,Su R.,et al. Hydrogen bond modulation in 1,10-phenanthroline derivatives for versatile electron transport materials with high thermal stability, large electron mobility and excellent n-doping ability[J],2020,65(2).
APA	Bin Z.,Shi D.,Su R.,Han W.,Zhang D.,&Duan L..(2020).Hydrogen bond modulation in 1,10-phenanthroline derivatives for versatile electron transport materials with high thermal stability, large electron mobility and excellent n-doping ability.Science Bulletin,65(2).
MLA	Bin Z.,et al."Hydrogen bond modulation in 1,10-phenanthroline derivatives for versatile electron transport materials with high thermal stability, large electron mobility and excellent n-doping ability".Science Bulletin 65.2(2020).