Luminescence Properties of the Conjugated System Containing Benzoimidazole Structural Units and Its Organic Light-Emitting Diode (OLED)

doi:10.6023/cjoc201709047

Chin. J. Org. Chem. ›› 2018, Vol. 38 ›› Issue (1): 103-111.DOI: 10.6023/cjoc201709047 Previous Articles Next Articles

Special Issue: 庆祝吴养洁院士九十华诞专辑

Articles

含苯并咪唑单元共轭结构化合物及其有机发光二极管(OLED)器件发光性能研究

林丹燕^a, 宋森川^b, 陈智勇^c, 郭鹏然^c, 陈江韩^c, 史华红^b, 麦裕良^b, 宋化灿^a

a 中山大学化学工程与技术学院广州 510275;
b 广东省石油与精细化工研究院广州 510665;
c 中国广州分析测试中心广州 510070

收稿日期:2017-09-29 修回日期:2017-10-06 发布日期:2017-11-21
通讯作者: 宋化灿 E-mail:songhc2007@163.com
基金资助:
广东省科技计划（Nos.2017A070702017，2017A040405040）和广东省科学院科技创新发展专项（No.2017GDASCX-0104）资助项目.

Luminescence Properties of the Conjugated System Containing Benzoimidazole Structural Units and Its Organic Light-Emitting Diode (OLED)

Lin Danyan^a, Song Senchuan^b, Chen Zhiyong^c, Guo Pengran^c, Chen Jianghan^c, Shi Huahong^b, Mai Yuliang^b, Song Huacan^a

a School of Chemical Engineering and Technology, Sun Yat-Sen University, Guangzhou 510275;
b Guangdong Petrochemical Research Institute, Guangzhou 510665;
c China National Analysis Center of Guangzhou, Guangzhou 510070

Received:2017-09-29 Revised:2017-10-06 Published:2017-11-21
Contact: 10.6023/cjoc201709047 E-mail:songhc2007@163.com
Supported by:
Project supported by the Science and Technology Planning Project of Guangdong Province (Nos. 2017A070702017, 2017A040405040) and the Special Project of Science and Technology Development of Guangdong Academy of Sciences (No. 2017GDASCX-0104).

1. Luminescence Properties of the Conjugated System Containing Benzoimidazole Structural Units and Its Organic Light-Emitting Diode (OLED).PDF(1858KB)

Abstract

A series of conjugated compounds containing imidazole structure units were designed and synthesized. Their structures were characterized by ¹H NMR, ¹³C NMR, MS and elemental analysis. Their UV absorption wavelength (λ_a), fluorescence emission wavelength (λ_e), fluorescence quantum yield (Φ) and fluorescence lifetime (τ) were determined, and the relationships between the molecular structures and its spectral data were discussed. The results showed that these compounds possess strong luminescence characteristic, and the maximum value of Φ is 91%. 1,4-Bis-(2-(1-benzylbenzimidazole))benzene (5b) was selected to fabricate organic light-emitting diode (OLED). Its main luminous peak is at 448 nm, the maximum brightness is 6790 cd•m^－2 when the voltage is 23.8 V (875 mA•cm^－2), the maximum current efficiency is 1.17 cd•A^－1, the maximum power efficiency is 0.96 lm•W^－1, and the maximum external quantum efficiency is 0.92%, which indicate that these compounds have great potential application value as OLED materials.

Key words: benzoimidazole, luminescent property, organic light-emitting diode (OLED)

Cite this article

Lin Danyan, Song Senchuan, Chen Zhiyong, Guo Pengran, Chen Jianghan, Shi Huahong, Mai Yuliang, Song Huacan. Luminescence Properties of the Conjugated System Containing Benzoimidazole Structural Units and Its Organic Light-Emitting Diode (OLED)[J]. Chin. J. Org. Chem., 2018, 38(1): 103-111.

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含苯并咪唑单元共轭结构化合物及其有机发光二极管(OLED)器件发光性能研究

Luminescence Properties of the Conjugated System Containing Benzoimidazole Structural Units and Its Organic Light-Emitting Diode (OLED)

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