Optoelectronics Letters

, Volume 15, Issue 2, pp 85–88 | Cite as

Efficient blue fluorescence tandem organic light emitting device with a novel intermediate connector

  • Ya-dong Liu (刘亚东)Email author
  • Ji-chao Li (李继超)
  • Jie Zhang (张杰)
  • Wang-jun Guo (郭旺军)
  • Zhi-sheng Wu (伍致生)
  • Yu-hua Mi (弥育华)
  • Xin-chao Song (宋新潮)


A novel intermediate connector (IC) was formed which was composed of aluminum (Al, 3 nm)/1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN). The 3-nm-thick Al in the IC is certified to efficiently generate intrinsic charge carriers, and the HAT-CN is proved to work as the holes injection layer (HIL) for the corresponding electroluminescent (EL) unit simultaneously. This simply IC comprehensively takes advantage of the features of the HAT-CN so as to stack two single EL units without introducing extra material. In addition to a significant enhancement in luminance and current efficiency, a current efficiency (CE) of 10.2 cd/A and a luminance of 2 042 cd/m2 under the current density 20 mA/cm2 of this tandem organic light emitting device (TOLED) are yielded, which are notably almost the sum of that of the two single-unit devices.

Document code


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    Tang C. W. and VanSlyke S. A., Applied Physics Letters 12, 913 (1987).ADSCrossRefGoogle Scholar
  2. [2]
    D’andrade Brian W. and Forrest Stephen R., Advanced Materials 18, 1585 (2004).CrossRefGoogle Scholar
  3. [3]
    Pan Yufeng, Xia Yingdong, Zhang Haijuan, Qiu Jian, Zheng Yiting, Chen Yonghua and Huang Wei, Advanced Materials 44, 1701441 (2017).CrossRefGoogle Scholar
  4. [4]
    Wu Chung-Chih, Lin Yu-Ting, Wong Ken-Tsung, Chen Ruei-Tang and Chien Yuh-Yih, Advanced Materials 1, 61 (2004).CrossRefGoogle Scholar
  5. [5]
    Ding Lei, Tang Xun, Xu Mei-Feng, Shi Xiao-Bo, Wang Zhao-Kui and Liao Liang-Sheng, ACS Applied Materials & Interfaces 6, 18228 (2014).CrossRefGoogle Scholar
  6. [6]
    Xu Ting, Zhou Jun-Gui, Huang Chen-Chao, Zhang Lei, Fung Man-Keung, Murtaza Imran, Meng Hong and Liao Liang-Sheng, ACS Applied Materials & Interfaces 12, 10955 (2017).CrossRefGoogle Scholar
  7. [7]
    Zhang Xiang, Liu Shihao, Zhang Yaqian, Peng Xiaomei, Yin Maojun, Zhang Letian and Xie Wenfa, Applied Physics Letters 10, 103301 (2017).ADSCrossRefGoogle Scholar
  8. [8]
    Chen Yonghua, Wang Qi, Chen Jiangshan, Ma Dongge and Yan Donghang, Organic Electronics 13, 1121 (2012).CrossRefGoogle Scholar
  9. [9]
    Yang Jungjin, Suman C. K., Kim Joonyoup, Song Won-Jun, Wooh Sanghyuk, Char Kookheon and Lee Changhee, Journal of Nanoscience and Nanotechnology 8, 5898 (2014).CrossRefGoogle Scholar
  10. [10]
    Zhao Yongbiao, Tan Swee Tiam, Demir Hilmi Volkan and Sun Xiao Wei, Organic Electronics 23, 70 (2015).CrossRefGoogle Scholar
  11. [11]
    Pfeiffer Martin, Forrest Stephen R., Leo Karl and Thompson Mark E., Advanced Materials 22, 1633 (2002).CrossRefGoogle Scholar
  12. [12]
    Chang Chan-Ching, Chen Jenn-Fang, Hwang Shiao-Wen and Chen Chin H, Applied Physics Letters 87, 253501 (2005).ADSCrossRefGoogle Scholar
  13. [13]
    Hamwi Sami, Meyer Jens, Kroger Michael, Winkler Thomas, Witte Marco, Riedl Thomas, Kahn Antoine and Kowalsky Wolfgang, Advanced Functional Materials 20, 1762 (2010).CrossRefGoogle Scholar
  14. [14]
    Yook Kyoung Soo, Jeon Soon Ok, Min Sung-Yong, Lee Jun Yeob, Yang Ha-Jin, Noh Taeyong, Kang Sung-Kee and Lee Tae-Woo, Advanced Functional Materials 20, 1797 (2010).CrossRefGoogle Scholar
  15. [15]
    Liao L. S., Klubek K. P. and Tang C. W., Applied Physics Letters 2, 167 (2004).ADSCrossRefGoogle Scholar
  16. [16]
    Liu Jun, Wang Jing, Huang Saijun, Shi Xindong, Wu Xinkai and He Gufeng, Organic Electronics 14, 1337 (2013).CrossRefGoogle Scholar
  17. [17]
    Zhang Lei, Zu Feng-Shuo, Deng Ya-Li, Igbari Femi, Wang Zhao-Kui and Liao Liang-Sheng, ACS Applied Materials & Interfaces 7, 11965 (2015).CrossRefGoogle Scholar
  18. [18]
    Zhao Wu, Yang Zhiyuan, Jiao Bo and Wu Zhaoxin, Organic Electronics 17, 44 (2015).CrossRefGoogle Scholar
  19. [19]
    Sun Hengda, Guo Qingxun, Yang Dezhi, Chen Yonghua, Chen Jiangshan and Ma Dongge, ACS Photonics 2, 271 (2015).CrossRefGoogle Scholar

Copyright information

© Tianjin University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Ya-dong Liu (刘亚东)
    • 1
    Email author
  • Ji-chao Li (李继超)
    • 1
  • Jie Zhang (张杰)
    • 1
  • Wang-jun Guo (郭旺军)
    • 1
  • Zhi-sheng Wu (伍致生)
    • 1
  • Yu-hua Mi (弥育华)
    • 1
  • Xin-chao Song (宋新潮)
    • 1
  1. 1.Xi’an Modern Chemistry Research InstituteXi’anChina

Personalised recommendations