globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2019.11.005
论文题名:
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
作者: Bin Z.; Shi D.; Su R.; Han W.; Zhang D.; Duan L.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期:2
起始页码: 153
结束页码: 160
语种: 英语
中文关键词: 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)
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
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169847
Appears in Collections:气候变化与战略

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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

Recommended Citation:
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]. Science Bulletin,2020-01-01,65(2)
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