基于蓝黄磷光二元互补色的高效聚合物白光器件

doi:10.3866/PKU.WHXB20100949

Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (10): 2752-2756.doi: 10.3866/PKU.WHXB20100949

• PHOTOCHEMISTRY AND SPECTROSCOPY • Previous Articles Next Articles

Efficient Polymer White-Light-Emitting Devices Based on Two Complementary Phosphorescent Colors

LI Yan-Hu¹, FANG Yuan², ZOU Jian-Hua¹, WANG Biao², WU Hong-Bin^1,3, PENG Jun-Biao^1,3

1. Institute of Polymer Optoelectronic Material and Devices, South China University of Technology, Guangzhou 510640,P. R. China;
2. State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, P. R. China;
3. Key Laboratory of Specially Functional Materials, Ministry of Education, South China University of Technology, Guangzhou 510640, P. R. China

Received:2010-05-10 Revised:2010-06-07 Published:2010-09-27
Contact: PENG Jun-Biao E-mail:psjbpeng@scut.edu.cn
Supported by:
The project was supported by the National Natural Science Foundation of China (U0634003, 60937001) and State Key Research Programof China (2009CB930604, 2009CB623604, 2008AA03A335, 20090325).

Abstract

Abstract:

White polymer light -emitting diodes (WPLEDs) were fabricated by spin coating method using two complementary colors. The device structure used here is ITO/PEDOT (40 nm)/emitting layer (80 nm)/Ba (4 nm)/Al (120 nm). When the mass ratio of PVK:OXD -7:iridium bis(2 -(4,6 -difluorophenyl) -pyridinato -N,C2)picolinate (Firpic):tris(3 -(2,6 -dimethylphenoxy) -6-(thiophen -2-yl)pyridazine)iridium (Fs-1) was 63:27:10:0.25, white light with Commission Internationale deL 'Eclairage (CIE) coordinates of (0.30, 0.39) was obtained. The maximum current efficiency was 10.8 cd·A ^-1and the maximum brightness was 4200 cd·m ^-2. To improve the hole -electron injection balance and the device 's character, a thin layer of water -soluble electronic transporting material was used to modify the cathode. In this case, efficient white light emission with a maximum current efficiency of 13.1 cd·A^-1anda maximum brightness of 6069 cd·m^-2was obtained. Using poly[(9,9 -bis(3 '-(N,N-dimethylamino) propyl) -2,7 -fuorene) -alt -2,7 -(9,9 -dioctylfuorene)] (PFN) (20 nm)/Al (120 nm) as the cathode resulted in CIE coordinates of (0.33, 0.39) and the EL spectrum was also found to be quite stable. The effects of charge trapping and energy transfer on device performance were discussed by considering the photoluminescence (PL) and electroluminescence (EL) spectra as well as the energy band diagramof the device.

Key words: Polymer light emitting diode, Two complementary white light, Energy transfer, Cathode modification

LI Yan-Hu, FANG Yuan, ZOU Jian-Hua, WANG Biao, WU Hong-Bin, PENG Jun-Biao. Efficient Polymer White-Light-Emitting Devices Based on Two Complementary Phosphorescent Colors[J].Acta Phys. -Chim. Sin., 2010, 26(10): 2752-2756.

References

1. Hou, L. T.; Hou, Q.; Peng, J. B.; Cao, Y. Acta Phys. Sin., 2005, 54: 5377 [侯林涛, 侯琼,彭俊彪,曹镛. 物理学报, 2005, 54: 5377]
2. Wang, L.; Liang, B.; Huang, F.; Peng, J. B.; Cao, Y. Appl. Phys. Lett., 2006, 89: 151115
3. Siemens, A. G. Appl. Phys. Lett., 2001, 78: 3905
4. D'Andrade, B.W.; Forrest, S. R. Adv. Mater., 2004, 16: 1585
5. Liu, R. S.; Xiong, Y.; Zeng, W. J.; Yang, W.; Cao, Y. Macromol. Chem. Phys., 2007, 208: 1503
6. Wu, H. B.; Zou, J. H.; Liu, F.; Wang, L.; Yang, W.; Mikhailovsky, A.; Bazan, G. C.; Cao, Y. Adv. Mater., 2008, 20: 696
7. Liu, J.; Zhou, Q. G.; Cheng, Y. X.; Geng, Y. H.;Wang, L. X.; Ma, D. G.; Jing, X. B.;Wang, F. S. Adv. Funct. Mater., 2006, 16: 957
8. Gong, X.; Lim, S. H.; Ostrowski, J. C.; Moses, D.; Bardeen, C. J.; Bazan, G. C. J. Appl. Phys., 2004, 95: 948
9. Adamovich, V.; Brooks, J.; Tamayo, A.; Alexander, A. M.; Djurovich, P. I.; D'Andrade, B. W.; Adachi, C.; Forrest, S. R.; Thompson, M. E. New J. Chem., 2002, 26: 1171
10. Xie,W. J.; Li, Y. P.; Sun, C. L.; Li, F.; Fei, T.; Ma, Y. G. Chem. J. Chin. Univ., 2007, 28(7): 1342 [谢伟杰,李昱鹏,孙成林, 李峰,费腾, 马於光.高等学校化学学报, 2007, 28(7): 1342]
11. Zou, J. H.; Tao, H.; Wu, H. B.; Peng, J. B. Acta Phys. Sin., 2009, 58: 1224 [邹建华,陶洪,吴宏滨,彭俊彪. 物理学报, 2009, 58: 1224]
12. Su, S.; Conmori, E.; Sasabe, H.; Kido, J. Adv. Mater., 2008, 20: 4189
13. Zhang, L.; Guo, X.; Shen, G. D.; Liu, S. W.; Liang, T.;Wang, H. Semiconductor Optoelectronic, 2006, 27(4): 387 [张蕾,郭霞,沈光地,刘诗文,粱庭, 王惠.半导体光电, 2006, 27(4): 387]
14. An, D.; Zhou, J. H.; Wu, H. B.; Peng, J. B.; Yang, W.; Cao, Y. Organic Electronics, 2009, 10: 299
15. Wu, H. B.; Huang, F.; Mo, Y. Q.; Yang, W.; Wang, D. L.; Peng, J. B.; Cao, Y. Adv. Mater., 2004, 16: 1826
16. Peng, J. B.; Liu, N. L.; Wang, J. Chinese Journal of Liquid Crystals and Displays, 2009, 24: 3 [彭俊彪,刘南柳,王坚. 液晶与显示, 2009, 24: 3]
17. Kawamura, Y.; Yanagida, S.; Forrest, S. R. J. Appl. Phys., 2002, 92: 87
18. Kozlov, V. G.; Bulovic, V.; Burrows, P. E.; Baldo, M.; Khalfin, V. B.; Parthasarathy, G.; Forrest, S. R. J. Appl. Phys., 1998, 84: 4096
19. Luo, J.; Li, X. Z.; Hou, Q.; Peng, J. B.; Yang, W.; Cao, Y. Adv. Mater., 2007, 19: 1113
20. Xu, Y. H.; Peng, J. B.;Mo, Y. Q.; Hou, Q.; Cao, Y. Appl. Phys. Lett., 2005, 86: 163502
21. Li, L.; Yu, J. S.; Wang, J.; Lou, S. L.; Jiang, Y. D.; Li, W. Acta Phys. -Chim. Sin., 2007, 23(10): 1493 [李璐,于军胜,王军, 娄双玲,蒋亚东, 李伟.物理化学学报, 2007, 23(10): 1493]
22. Niu, Q. L.; Xu, Y. H.; Peng, J. B. J. Luminesc., 2007, 126: 531
23. Gong, X.; Ostrowski, J. C.; Bazan, G. C.; Heeger, A. J. Adv. Funct . Mater., 2003, 15: 439
24. Zeng, W. J.; Wu, H. B.; Zhang, C.; Huang, F.; Peng, J. B.; Yang, W.; Cao, Y. Adv. Mater., 2007, 19: 810

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Efficient Polymer White-Light-Emitting Devices Based on Two Complementary Phosphorescent Colors

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