Asymmetric indolylmaleimides as non-dopant type red color emitting dyes

NCU Institutional Repository > 理學院 > 化學學系 > 期刊論文 > Item 987654321/50677

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/50677

题名:	Asymmetric indolylmaleimides as non-dopant type red color emitting dyes
作者:	Lee,YS;Lin,ZH;Chen,YY;Liu,CY;Chow,TJ
贡献者:	化學學系
关键词:	DERIVATIVES;ELECTROLUMINESCENCE;DEVICES;POLYMERS
日期:	2010
上传时间:	2012-03-27 18:07:42 (UTC+8)
出版者:	國立中央大學
摘要:	The photophysical properties of asymmetric indolylmaleimide derivatives (4a-4f) with a variety of aryl substituents at C(4) were analyzed. Their absorption spectra vary in the region of aryl substituents, whereas their emission spectra are nearly identical. The red emission is derived from a charge transfer transition along the indole-maleimide chromophore, which is not significantly disturbed by the introduction of a nearby aryl substituent at C(4). All compounds displayed intensive emissions both in solutions as well as in the form of solid films. Light emitting diodes (LED) were fabricated successfully by using the neat film of these materials as emitters. The performance of devices among the series varied slightly as a result of different film morphology. The best performance was found on the compound with a pyrene substituent, which exhibited optimal external quantum efficiency of 1.1%. This device could be turned on at 4 V and reached to optimal brightness of 9750 cd/m(2). The red color, according to the Commission Internationale de l'Eclairage (CIE) coordinates at (0.65, 0.34), was very close to pure red (0.67, 0.33). (C) 2009 Elsevier B.V. All rights reserved.
關聯:	ORGANIC ELECTRONICS
显示于类别:	[化學學系] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	463	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....