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White organic light-emitting diodes based on a combined electromer and monomer emission in doubly-doped polymers

White organic light-emitting diodes based on a combined electromer and monomer emission in doubly-doped polymers
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摘要 We report on white organic light-emitting diodes (WOLEDs) based on polyvinylcarbazole (PVK) doped with 1,1-bis((di-4-tolylamino)phenyl)cyclohexane (TAPC) and perylene, and investigate the luminescence mechanism of the devices. The chromaticity of light emission can be tuned by adjusting the concentration of the dopants. White light with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.33, 0.34) is achieved by mixing the yellow electromer emission of TAPC and the blue monomer emission of perylene from the device ITO/PVK: TAPC: perylene (100:9:1 in wt.) (100 nm)/tris-(8-hydroxyquinoline aluminum (Alq3) (10 nm)/A1. The device exhibits a maximal luminance of 3727 cd/m2 and a current efficiency of 2 cd/A. We report on white organic light-emitting diodes (WOLEDs) based on polyvinylcarbazole (PVK) doped with 1,1-bis((di-4-tolylamino)phenyl)cyclohexane (TAPC) and perylene, and investigate the luminescence mechanism of the devices. The chromaticity of light emission can be tuned by adjusting the concentration of the dopants. White light with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.33, 0.34) is achieved by mixing the yellow electromer emission of TAPC and the blue monomer emission of perylene from the device ITO/PVK: TAPC: perylene (100:9:1 in wt.) (100 nm)/tris-(8-hydroxyquinoline aluminum (Alq3) (10 nm)/A1. The device exhibits a maximal luminance of 3727 cd/m2 and a current efficiency of 2 cd/A.
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第8期580-583,共4页 中国物理B(英文版)
基金 Project supported by the National Natural Science Foundation of China (Grant Nos. 61177017,61125505,60978061,61077022,61036007,and 60877005) the 111 Project (Grant No. B08002)
关键词 white organic light-emitting diodes electromer emission monomer emission Commis-sion Internationale de L'Eclairage (CIE) white organic light-emitting diodes, electromer emission, monomer emission, Commis-sion Internationale de L'Eclairage (CIE)
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