Please wait a minute...
Chin. Phys. B, 2015, Vol. 24(5): 057802    DOI: 10.1088/1674-1056/24/5/057802

High color rendering index white organic light-emitting diode using levofloxacin as blue emitter

Miao Yan-Qin (苗艳勤)a c, Gao Zhi-Xiang (高志翔)b, Zhang Ai-Qin (张爱琴)a c, Li Yuan-Hao (李源浩)a c, Wang Hua (王华)a c, Jia Hu-Sheng (贾虎生)a d, Liu Xu-Guang (刘旭光)a e, Tsuboi Taijuf
a Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China;
b School of Physical Science and Electronics, Shanxi Datong University, Datong 037009, China;
c Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China;
d College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
e College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
f Institute of Advanced Materials, Nanjing University of Technology, Nanjing 210009, China

Levofloxacin (LOFX), which is well-known as an antibiotic medicament, was shown to be useful as a 452-nm blue emitter for white organic light-emitting diodes (OLEDs). In this paper, the fabricated white OLED contains a 452-nm blue emitting layer (thickness of 30 nm) with 1 wt% LOFX doped in CBP (4,4'-bis(carbazol-9-yl)biphenyl) host and a 584-nm orange emitting layer (thickness of 10 nm) with 0.8 wt% DCJTB (4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran) doped in CBP, which are separated by a 20-nm-thick buffer layer of TPBi (2,2',2"-(benzene-1,3,5-triyl)-tri(1-phenyl-1H-benzimidazole). A high color rendering index (CRI) of 84.5 and CIE chromaticity coordinates of (0.33, 0.32), which is close to ideal white emission CIE (0.333, 0.333), are obtained at a bias voltage of 14 V. Taking into account that LOFX is less expensive and the synthesis and purification technologies of LOFX are mature, these results indicate that blue fluorescence emitting LOFX is useful for applications to white OLEDs although the maximum current efficiency and luminance are not high. The present paper is expected to become a milestone to using medical drug materials for OLEDs.

Keywords:  levofloxacin      blue organic light emitting diodes      white organic light-emitting diodes      high color rendering index  
Received:  18 October 2014      Revised:  18 December 2014      Accepted manuscript online: 
PACS:  78.60.Fi (Electroluminescence)  
  72.80.Le (Polymers; organic compounds (including organic semiconductors))  

Project supported by the Program for New Century Excellent Talents in University of Ministry of Education of China (Grant No. NCET-13-0927), the International Science & Technology Cooperation Program of China (Grant No. 2012DFR50460), the National Natural Science Foundation of China (Grant Nos. 21101111 and 61274056), and the Shanxi Provincial Key Innovative Research Team in Science and Technology, China (Grant No. 2012041011).

Corresponding Authors:  Wang Hua, Jia Hu-Sheng     E-mail:;jia
About author:  78.60.Fi; 72.80.Le

Cite this article: 

Miao Yan-Qin (苗艳勤), Gao Zhi-Xiang (高志翔), Zhang Ai-Qin (张爱琴), Li Yuan-Hao (李源浩), Wang Hua (王华), Jia Hu-Sheng (贾虎生), Liu Xu-Guang (刘旭光), Tsuboi Taiju High color rendering index white organic light-emitting diode using levofloxacin as blue emitter 2015 Chin. Phys. B 24 057802

[1] D'Andrade B W and Forrest S R 2004 Adv. Mater. 16 1585
[2] Sun Y, Giebink N C, Kanno H, Ma B, Thompson M E and Forrest S R 2006 Nature 440 908
[3] Kamtekar K T, Monkman A P and Bryce M R 2010 Adv. Mater. 22 572
[4] Wu H B, Zou J H, Liu F, Wang L, Mikhailovsky A, Bazan G C, Yang W and Cao Y 2008 Adv. Mater. 20 696
[5] Furno M, Rosenow T C, Gather M C, Lussem B and Leo K 2012 Appl. Phys. Lett. 101 143304
[6] Wei N, Guo K P, Zhou P C, Yu J N, Wei B and Zhang J H 2014 Chin. Phys. B 23 077802
[7] Wu Q Y, Xie G H, Zhang Z S, Yue S Z, Wang P, Chen Y, Guo R D, Zhao Y and Liu S Y 2013 Acta Phy. Sin. 62 197204 (in Chinese)
[8] Kang D M, Kang J W, Park J W, Jung S O, Lee S H, Park H D, Kim Y H, Shin S C, Kim J J and Kwon S K 2008 Adv. Mater. 20 2003
[9] Fan C H, Sun P P, Su T H and Cheng C H 2011 Adv. Mater. 23 2981
[10] Lee K H, Kim S O, You J N, Kang S, Lee J Y, Yook K S, Jeon S O, Lee J Y and Yoon S S 2012 J. Mater. Chem. 22 5145
[11] Lai S L, Tao S L, Chan M Y, Ng T W, Lo M F, Lee C S, Zhang X H and Lee S T 2010 Org. Electron. 11 1511
[12] Yang Y, Peng T, Ye K Q, Wu Y, Liu Y and Wang Y 2011 Org. Electron. 12 29
[13] Nelson J M, Chiller T M, Powers J H and Angulo F J 2007 Clin. Infect. Dis. 44 977
[14] Mandell L A, Wunderink R G and Anzueto A 2007 Clin. Infect. Dis. 44 S27
[15] Solomkin J S, Mazuski J E and Bradley J S 2010 Clin. Infect. Dis. 50 133
[16] Gunasekaran S, Rajalakshmi K and Kumaresan S 2013 Acta A: Mole. Biomole. Spectrosc. 112 351
[17] Zhang J L, Yang X Z, Han Y, Li W and Wang J K 2012 Fluid Phase Equilibria. 335 1
[18] Polishchuk A V, Karaseva E T and proskurina N A and Karasev V E 2008 High Energy Chem. 42 459
[19] Miao Y Q, Lu L, Wang H, Yuan S Q, Liu H H, Jia H S, Gao Z X, Du X G, Jing S and Zhang F (China Patent) 201210158688
[20] Huang Y S, Jou J H, Weng W K and Liu J M 2002 Appl. Phys. Lett. 80 2782
[21] Kanno H, Giebink N C, Sun Y and Forrest S R 2006 Appl. Phys. Lett. 89 023503
[22] Seo J H, Park J H, Kim Y K, Kim J H, Hyung G W, Lee K H and Yoon S S 2007 Appl. Phys. Lett. 90 203507
[23] Zhang L J, Hua Y L, Wu X M, Wang Y and Yin S G 2008 Chin. Phys. B 17 3097
[24] Wu X M, Hua Y L, Yin S G, Zhang L J, Wang Y, Hou Q C and Zhang J M 2008 Chin. Phys. Lett. 25 294
[25] Zhang L J, Hua Y L, Wu X M, Wang Y and Yin S G 2008 Chin. Phys. B 17 3097
[26] Fadhel O, Gras M, Lemaitre N, Deborde V, Hissler M, Geffroy B and Réau R 2009 Adv. Mater. 21 1261
[27] Schwartz G, Fehse K, Pfeiffer M, Walzer K and Leo K 2006 Appl. Phys. Lett. 89 083509
[28] Bulovic V, Deshpande R, Thompson M E and Forrest S R 1999 Chem. Phys. Lett. 308 317
[29] Zhang Z L, Jiang X Y, Zhu W Q, Zhang B X and Xu S H 2001 J. Phys. D: Appl. Phys. 34 3083
[30] Khan A L T, Sreearunothai P, Herz L M, Banach M J and Kohler A 2004 Phys. Rev. B 69 085201
[31] Wu C, Djurovich P I and Thompson M E 2009 Adv. Funct. Mater. 19 3157
[32] Choi W H, Tam H L, Zhu F R, Ma D G, Sasabe H and Kido J 2013 Appl. Phys. Lett. 102 153308
[33] Jang J G, Ji H J, Kim H S and Jeong J C 2011 Curr. Appl. Phys. 11 S251
[34] Li Y Q, Fung M K, Xie Z, Lee S T, Hung L S and Shi J 2002 Adv. Mater. 14 1317
[35] Li L, Winckel S V, Genoe J and Heremans P 2009 Appl. Phys. Lett. 95 153301
[36] Wallace J U, Young R H, Tang C W and Chen S H 2007 Appl. Phys. Lett. 91 152104
[37] Khademi S, Song J Y, Wyatt P B, Kreouzis T and Gillin W P 2012 Adv. Mater. 24 2278
[38] Shen Y, Klein M W, Jacobs D B, Scott J C and Malliaras G G 2001 Phys. Rev. Lett. 86 3867
[39] Jou J H, Shen S M, Lin C R, Wang Y S, Chou Y C, Chen S Z and Jou Y C 2011 Org. Electron. 12 865
[1] Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter
Wei Na (魏娜), Guo Kun-Ping (郭坤平), Zhou Peng-Chao (周朋超), Yu Jian-Ning (于建宁), Wei Bin (魏斌), Zhang Jian-Hua (张建华). Chin. Phys. B, 2014, 23(7): 077802.
[2] Tandem white organic light-emitting diodes adopting a C60:rubrene charge generation layer
Bi Wen-Tao (毕文涛), Wu Xiao-Ming (吴晓明), Hua Yu-Lin (华玉林), Sun Jin-E (孙金娥), Xiao Zhi-Hui (肖志慧), Wang Li (王丽), Yin Shou-Gen (印寿根). Chin. Phys. B, 2014, 23(1): 017803.
[3] White organic light-emitting diodes based on combined electromer and monomer emission in doubly-doped polymers
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 ). Chin. Phys. B, 2012, 21(8): 088504.
[4] White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends
Chen Fei-Peng(陈飞鹏), Xu Bin(徐斌), Zhao Zu-Jin(赵祖金), Tian Wen-Jing (田文晶), LÜ Ping(吕萍), and Im Chan. Chin. Phys. B, 2010, 19(3): 037801.
No Suggested Reading articles found!