Advertisement

Optoelectronics Letters

, Volume 14, Issue 5, pp 350–354 | Cite as

Optimization for tandem organic light-emitting diodes based on Firpic

  • Pei Wang (王培)
  • Zhen Wang (王振)
  • Xin Zheng (郑新)
Article

Abstract

A series of single-unit and tandem blue phosphorescent organic light-emitting diodes (OLEDs) were prepared by adjusting the concentration of dopant based on the structure of ITO/NPB/EL unit/Alq3/Cs2CO3/Al. The results show that tandem device with doping concentration of 10 wt% has appropriate energy transfer, which achieves the best performance with a maximum current efficiency of 3.4 cd·A−1. Further study found that current efficiency and power efficiency of the tandem OLED adding BCP as hole blocking layer (HBL) can achieve 7.85 cd·A−1 and 0.72 lm·W−1, respectively. It is 2.88 times and 1.57 times larger than those of sing-unit devices, and green peak is restrained effectively.

Document code

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Angel Felipe A, Wallace Jason U and Tang Ching W, Organic Electronics 42, 102 (2017).CrossRefGoogle Scholar
  2. [2]
    Liu X, Wang C, Wang C, Irfan I and Gao Y, Organic Electronics 17, 325 (2015).CrossRefGoogle Scholar
  3. [3]
    Yang Hong-sheng, J Kim and H. Hosono, Sid Symposium Digest of Technical Papers 48, 1972 (2017).Google Scholar
  4. [4]
    Liu Yang, Wu Xiao-ming, Xiao Zhi-hui, Gao Jian, Zhang Juan and Yin Shou-gen, Applied Surface Science 413, 302 (2017).ADSCrossRefGoogle Scholar
  5. [5]
    Yang Hong-sheng, Kim J, Yamamoto K and H Hosono, Organic Electronics 46, 133 (2017).CrossRefGoogle Scholar
  6. [6]
    Huang Chen-chao, Xie Yue-min, Wu Sheng-fan, Li Si-hua, Liang Jiao-jiao and Man Keung Fungl, Physica Status Solidi 214, 1700240 (2017).ADSCrossRefGoogle Scholar
  7. [7]
    Jorge Oliva, Alexios Papadimitratos, Elder de la Rosa Cruz and Anvar Zakhidov, Physica Status Solidi 214, 1700283 (2017).ADSCrossRefGoogle Scholar
  8. [8]
    Takayuki Chiba, Pu Yong-jin and Junji Kido, Organic Light-Emitting Devices with Tandem Structure, Photoluminescent Materials and Electroluminescent Devices, Springer International Publishing, 2017.Google Scholar
  9. [9]
    Soichiro Nakatsuka, Hajime Gotoh, Akiko Kageyama and Takuji Hatakeyama, Organometallics 36, 00242 (2017).CrossRefGoogle Scholar
  10. [10]
    Wu Yu-kun, Sun Ying, Qin Hou-yun, Hu Shou-cheng, Wu Qing-yang and Yi Zhao, Applied Physics A 123, 234 (2017).CrossRefGoogle Scholar
  11. [11]
    Lei Yong, Liu Zhen, Fan Chang-jun, Peng Xue-feng, Ji Xiaxia, Li Guo-qing, Xiong Zu-hong and Yang Xiao-hui, The Journal of Physical Chemistry C 121, 793 (2017).ADSCrossRefGoogle Scholar
  12. [12]
    Deng Yang-hong, Wang Jin-jiang, Ou Qing-dong, Zhang Deng-yu, Chen Lie-zun, Li Yan-qing and Tang Jian-xin, Organic Electronics 51, 452 (2017).CrossRefGoogle Scholar
  13. [13]
    Yan H, Huang Q and Cui J, Advanced Materials 15, 835 (2003).CrossRefGoogle Scholar
  14. [14]
    Wang Zhen, Zheng Xin, Liu Fei, WANG Pei, Gan Lin and WANG Jing-jing, Optoelectronics Letters 13, 325 (2017).ADSCrossRefGoogle Scholar
  15. [15]
    Xiao Li-lin, Chen Zhi-jian, Qu Bo, Luo Jia-xiu, Kong Sheng, Gong Qi-huang and Junji Kido, Advanced Materials 23, 926 (2011).CrossRefGoogle Scholar
  16. [16]
    Sun Heng-da, Guo Qing-xun, Yang De-zhi, Chen Yong-hua, Chen Jiang-shan and Ma Dong-ge, ACS Photonics 2, 271 (2015).CrossRefGoogle Scholar

Copyright information

© Tianjin University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Pei Wang (王培)
    • 1
  • Zhen Wang (王振)
    • 1
  • Xin Zheng (郑新)
    • 1
  1. 1.School of Optoelectronic EngineeringChongqing University of Posts and TelecommunicationsChongqingChina

Personalised recommendations