Effect of Multiple-Quantum-Well Structure on Efficiency of Organic Electrophosphorescent Light-Emitting Devices

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概要

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• Organic electrophosphorescent-light-emitting devices with multiple-quantum-well (MQW) structures have been fabricated. Each quantum well is made of a film of the phosphorescent dye 2,3,7,8,12,13,17,18-octaethyl-21$H$23$H$-porphine platinum (II) doped into tris (8-hydroxyquinoline) aluminum which act as a potential well and 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline as a potential barrier. Saturated red emission was obtained, and the effect of the MQW structure on the efficiency of the devices with different numbers of MQWs was investigated. The experimental results suggest that the device with seven quantum wells has the optimum efficiency. Compared with the maximum efficiency of the conventional heterostructure device with a 42-nm-thick emitting layer, that of the device with seven quantum wells is higher by about a factor of two.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 2003-04-01

著者

• Feng Jing

  National Lab Of Integrated Optoelectronics Jilin University

• Ma Yuguang

  Key Laboratory Of Superamolecular Structure And Material Jilin University

• Cheng Gang

  National Laboratory Of Integrated Optoelectronics Jilin University

• Liu Shiyong

  National Lab Of Integrated Optoelectronics Jilin University

• Qiu Song

  Key Laboratory Of Superamolecular Structure And Material Jilin University

• Li Feng

  National Laboratory Of Integrated Optoelectronics Jilin University

• Ma Yuguang

  Key Laboratory of Superamolecular Structure and Material, Jilin University, Changchun 130023, China

• Qiu Song

  Key Laboratory of Superamolecular Structure and Material, Jilin University, Changchun 130023, China

• Li Feng

  National Laboratory of Integrated Optoelectronics, Jilin University, Changchun 130023, China

関連論文

• Effect of Multiple-Quantum-Well Structure on Efficiency of Organic Electrophosphorescent Light-Emitting Devices
• Low Operating Voltage and High Efficiency Organic Multilayer Electroluminescent Devices with p-Type Doped Hole Injection Layer : Atoms, Molecules, and Chemical Physics
• Structural Design of a Passive Matrix (PM) Color Organic Light-Emitting Device
• Small Molecular White Organic Light Emitting Devices with Single Emission Zone
• Spectroscopic Ellipsometry Studies of CuPc and Other Materials for Organic Light-Emitting Devices
• Enhanced Red Emission from Fluorescent Organic Light-Emitting Devices Utilizing a Phosphorescent Sensitizer
• Effect of Multiple-Quantum-Well Structure on Efficiency of Organic Electrophosphorescent Light-Emitting Devices

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