中国物理B ›› 2017, Vol. 26 ›› Issue (11): 117001-117001.doi: 10.1088/1674-1056/26/11/117001

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Enhancement of electroluminescent properties of organic optoelectronic integrated device by doping phosphorescent dye

Shu-ying Lei(雷疏影), Jian Zhong(钟建), Dian-li Zhou(周殿力), Fang-yun Zhu(朱方云), Chao-xu Deng(邓朝旭)   

  1. 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, Chengdu 610054, China;
    2. School of Optoelectronic Information, University of Electronic Science and Technology of China(UESTC), Chengdu 610054, China
  • 收稿日期:2017-06-04 修回日期:2017-07-26 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61675041) and the National Science Funds for Creative Research Groups of China (Grant No. 61421002).

Enhancement of electroluminescent properties of organic optoelectronic integrated device by doping phosphorescent dye

Shu-ying Lei(雷疏影)1,2, Jian Zhong(钟建)1,2, Dian-li Zhou(周殿力)1,2, Fang-yun Zhu(朱方云)1,2, Chao-xu Deng(邓朝旭)1,2   

  1. 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, Chengdu 610054, China;
    2. School of Optoelectronic Information, University of Electronic Science and Technology of China(UESTC), Chengdu 610054, China
  • Received:2017-06-04 Revised:2017-07-26 Online:2017-11-05 Published:2017-11-05
  • Contact: Jian Zhong E-mail:zhongjian@uestc.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61675041) and the National Science Funds for Creative Research Groups of China (Grant No. 61421002).

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摘要： Organic optoelectronic integrated devices (OIDs) with ultraviolet (UV) photodetectivity and different color emitting were constructed by using a thermally activated delayed fluorescence (TADF) material 4, 5-bis(carbazol-9-yl)-1, 2-dicyanobenzene (2CzPN) as host. The OIDs doping with typical red phosphorescent dye[tris(1-phenylisoquinoline)iridium(Ⅲ), Ir(piq)3], orange phosphorescent dye bis[2-(4-tertbutylphenyl)benzothiazolato-N, C2']iridium (acetylacetonate), (tbt)2Ir(acac), and blue phosphorescent dye[bis(2, 4-di-fluorophenylpyridinato)-tetrakis(1-pyrazolyl)borate iridium(Ⅲ), FIr6] were investigated and compared. The (tbt)2Ir(acac)-doped orange device showed better performance than those of red and blue devices, which was ascribed to more effective energy transfer. Meanwhile, at a low dopant concentration of 3 wt.%, the (tbt)2Ir(acac)-doped OIDs showed the maximum luminance, current efficiency, power efficiency of 70786 cd/m2, 39.55 cd/A, and 23.92 lm/W, respectively, and a decent detectivity of 1.07×1011 Jones at a bias of-2 V under the UV-350 nm illumination. This work may arouse widespread interest in constructing high efficiency and luminance OIDs based on doping phosphorescent dye.

关键词: organic optoelectronic integrated device, thermally activated delayed fluorescence host, phosphorescent dye, high luminance

Abstract: Organic optoelectronic integrated devices (OIDs) with ultraviolet (UV) photodetectivity and different color emitting were constructed by using a thermally activated delayed fluorescence (TADF) material 4, 5-bis(carbazol-9-yl)-1, 2-dicyanobenzene (2CzPN) as host. The OIDs doping with typical red phosphorescent dye[tris(1-phenylisoquinoline)iridium(Ⅲ), Ir(piq)3], orange phosphorescent dye bis[2-(4-tertbutylphenyl)benzothiazolato-N, C2']iridium (acetylacetonate), (tbt)2Ir(acac), and blue phosphorescent dye[bis(2, 4-di-fluorophenylpyridinato)-tetrakis(1-pyrazolyl)borate iridium(Ⅲ), FIr6] were investigated and compared. The (tbt)2Ir(acac)-doped orange device showed better performance than those of red and blue devices, which was ascribed to more effective energy transfer. Meanwhile, at a low dopant concentration of 3 wt.%, the (tbt)2Ir(acac)-doped OIDs showed the maximum luminance, current efficiency, power efficiency of 70786 cd/m2, 39.55 cd/A, and 23.92 lm/W, respectively, and a decent detectivity of 1.07×1011 Jones at a bias of-2 V under the UV-350 nm illumination. This work may arouse widespread interest in constructing high efficiency and luminance OIDs based on doping phosphorescent dye.

Key words: organic optoelectronic integrated device, thermally activated delayed fluorescence host, phosphorescent dye, high luminance

中图分类号: 

  • 70.60.Fi
85.60.Jb (Light-emitting devices) 85.60.Gz (Photodetectors (including infrared and CCD detectors)) 73.61.Ph (Polymers; organic compounds)