| Near-Infrared Emission from Organic Light-Emitting Diodes Based on Copper Phthalocyanine with a Periodically Arranged Alq3：CuPc/DCM Multilayer Structure |
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| 引用本文： | 郭振强,程传辉,范昭奇,何为,于书坤,常遇春,杜锡光,王旭,杜国同. Near-Infrared Emission from Organic Light-Emitting Diodes Based on Copper Phthalocyanine with a Periodically Arranged Alq3：CuPc/DCM Multilayer Structure[J]. 中国物理快报, 2008, 25(2): 715-718 |
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| 作者姓名： | 郭振强 程传辉 范昭奇 何为 于书坤 常遇春 杜锡光 王旭 杜国同 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 20472014, the Young Teacher Foundation of Dalian University of Technology under Grant No 3005-893212, the Doctoral Foundation of Dalian University of Technology under Grant No 3005-893327. |
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| 摘 要： | We demonstrate near-infrared organic light-emitting devices with a periodically arranged tris（8-quinolinolato）aluminum （Alq3）：copper phthalocyanine （CuPc）/4-（dicyanomethylene）-2-methyl-6-（4-dimethylaminost-yry）-4H-pyran （DCM） multilayer structure. DCM and Alq3 doped with CuPc were periodically deposited. Room-temperature electrophosphorescence was observed at about 1.1 μm due to transitions from the first excited triplet state to the singlet ground state （T1 - S0） of CuPc. In this device, we utilize the overlap between the Q band πr - π^＊ at about 625nm of the absorption spectra of CuPc and the PL spectra of the DCM. The near-infrared emission intensity of the CuPc-doped Alq3 device with DCM increases about 2.5 times larger than that of the device without DCM. We attribute the efficiency enhancement to the better overlap between the PL spectra of DCM and the absorption spectra of CuPc.
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| 关 键 词： | 近红外发射 有机发光二极管 铜酞菁 多层结构 |
| 收稿时间： | 2007-09-14 |
Near-Infrared Emission from Organic Light-Emitting Diodes Based on Copper Phthalocyanine with a Periodically Arranged Alq3:CuPc/DCM Multilayer structure |
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| GUO Zhen-Giang,CHENG Chuan-Hui,FAN Zhao-Qi,HE Wei,YU Shu-Kun,CHANG Yu-Chun,DU Xi-Guang,WANG Xu,DU Guo-Tong. Near-Infrared Emission from Organic Light-Emitting Diodes Based on Copper Phthalocyanine with a Periodically Arranged Alq3:CuPc/DCM Multilayer structure[J]. Chinese Physics Letters, 2008, 25(2): 715-718 |
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| Authors: | GUO Zhen-Giang CHENG Chuan-Hui FAN Zhao-Qi HE Wei YU Shu-Kun CHANG Yu-Chun DU Xi-Guang WANG Xu DU Guo-Tong |
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| Affiliation: | [1]State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012 [2]State Key Laboratory of Materials Modilication by Laser, Ion, and Electron Beams, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 [3]Department of Chemical, Northeast Normal University, Changchun 130024 [4]State Key Laboratory of Supramolecular, Department of Chemical, Jilin University, Changchun 130012 |
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| Abstract: | |
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| Keywords: | 78.60.Fi 73.61.Ph |
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