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Chin. Phys. B, 2012, Vol. 21(8): 088504    DOI: 10.1088/1674-1056/21/8/088504

White organic light-emitting diodes based on combined electromer and monomer emission in doubly-doped polymers

Meng Ling-Chuan (孟令川)a, Lou Zhi-Dong (娄志东)a, Yang Sheng-Yi (杨盛谊)b, Hou Yan-Bing (侯延冰)a, Teng Feng (滕枫)a, Liu Xiao-Jun (刘小君)a, Li Yun-Bai (李云白 )a
a Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China;
b Laboratory of Nanophotonics Materials and Technology, Center for Micro and Nano Technology & School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
Abstract  We report on white organic light-emitting diodes (WOLEDs) based on polyvinylcarbazole (PVK) doped with 1,1-bis((di-4-tolylamino)phenyl)cyclohexane (TAPC) and perylene, and investigate the luminescence mechanism of the devices. The chromaticity of light emission can be tuned by adjusting the concentration of the dopants. White light with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.33, 0.34) is achieved by mixing the yellow electromer emission of TAPC and the blue monomer emission of perylene from the device ITO/PVK: TAPC: perylene (100:9:1 in wt.) (100 nm)/tris-(8-hydroxyquinoline aluminum (Alq3) (10 nm)/Al. The device exhibits a maximal luminance of 3727 cd/m2 and a current efficiency of 2 cd/A.
Keywords:  white organic light-emitting diodes      electromer emission      monomer emission      Commission Internationale de L'Eclairage (CIE)  
Received:  05 March 2012      Revised:  26 April 2012      Accepted manuscript online: 
PACS:  85.60.Jb (Light-emitting devices)  
  61.72.up (Other materials)  
  78.60.Fi (Electroluminescence)  
  85.60.Bt (Optoelectronic device characterization, design, and modeling)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61177017, 61125505, 60978061, 61077022, 61036007, and 60877005) and the 111 Project (Grant No. B08002).
Corresponding Authors:  Lou Zhi-Dong     E-mail:

Cite this article: 

Meng Ling-Chuan (孟令川), Lou Zhi-Dong (娄志东), Yang Sheng-Yi (杨盛谊), Hou Yan-Bing (侯延冰), Teng Feng (滕枫), Liu Xiao-Jun (刘小君), Li Yun-Bai (李云白 ) White organic light-emitting diodes based on combined electromer and monomer emission in doubly-doped polymers 2012 Chin. Phys. B 21 088504

[1] Tang C W and VanSlyke S A 1987 Appl. Phys. Lett. 51 913
[2] Adachi Chihaya, Tsutsui Tetsuo and Saito Shogo 1989 Appl. Phys. Lett. 55 1489
[3] Burroughes J H, Bradley D D C, Brown A R, Marks R N, Mackay K, Friend R H, Burn P L and Holmes A B 1990 Nature 347 539
[4] Parker I D 1994 J. Appl. Phys 75 1656
[5] Gupta Dipti, Katiyar M and Deepak 2006 Opt. Mater 28 295
[6] D'Andrade B W and Forrest S R 2004 Adv Mater. 16 1585
[7] Zhang L J, Hua Y L, Wu X M, Wang Y and Yin S G 2008 Chin. Phys. B 17 3097
[8] Kalinowski J 2008 Journal of Non-Crystalline Solids 354 4170
[9] Chen F P, Xu B, Zhao Z J, Tian W J, Lü P and Im c 2010 Chin. Phys. B 19 037801
[10] Feng J, Li F, Gao W B, Liu Sh Y, Liu Y and Wang Y 2001 Appl. Phys. Lett. 78 3947
[11] Williams E L, Haavisto K, Li J and Jabbour G E 2007 Adv. Mater. 19 197
[12] Yang S Y and Jiang M X 2009 Chem. Phys. Lett. 484 54
[13] D'Andrade B W, Brooks J, Adamovich V, Thompson M E and Forrest S R 2002 Adv. Mater. 14 1032
[14] Kalinowski J, Giro G, Cocchi M, Fattori V and Di Marco P 2000 Appl. Phys. Lett. 76 2352
[15] Park Jukwang, Kim Yongtae, Lee Jeounghoon and Chang Seoul 2005 Curr. Appl. Phys. 5 71
[16] Deshpande R S, Bulovic V and Forrest S R 1999 Appl. Phys. Lett. 75 888
[17] Myung Shin D, Noh S, Choung Shon B, Kim Hyun J, Kim C and Nam K B 2000 Thin Solid Films 363 252
[18] Bulovi V, Deshpande R, Thompson M E and Forrest S R 1999 Chem. Phys. Lett. 308 317
[19] Adachi Chihaya, Baldo Marc A, Forrest S R, Lamansky Sergey, Thompson Mark E and Kwong Raymond C 2001 Appl. Phys. Lett. 78 1622
[20] Nie H, Zhang B and Tang X Z 2007 Chin. Phys. 16 730
[21] Park Hoon, Shin Dong-Sub, Yu Hee-Sung and Chae Hee-Baik 2007 Appl. Phys. Lett. 90 202103
[22] Stoessel M, Wittmann G, Staudigel J, Steuber F, Blassing J, Roth W, Klausmann H, Rogler W and Simmerer J 2000 J. Appl. Phys. 87 4467
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