Issue

Vol. 6 No. 4 (2014)

Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers

https://doi.org/10.1007/s40820-014-0006-4
Baiquan Liu
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China
Miao Xu
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China
Lei Wang
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China
Hong Tao
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China
Yueju Su
New Vision Opto-Electronic Technology Co., Ltd, Guangzhou 510530, People’s Republic of China
Dongyu Gao
New Vision Opto-Electronic Technology Co., Ltd, Guangzhou 510530, People’s Republic of China
Linfeng Lan
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China
Jianhua Zou
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China
Junbiao Peng
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China

Corresponding Author: Jianhua Zou

zou1007@gmail.com

Nano-Micro Letters, Vol. 6 No. 4 (2014), Article Number: 335-339

Abstract

A very-high color rendering index white organic light-emitting diode (WOLED) based on a simple structure was successfully fabricated. The optimized device exhibits a maximum total efficiency of 13.1 and 5.4 lm/W at 1,000 cd/m2. A peak color rendering index of 90 and a relatively stable color during a wide range of luminance were obtained. In addition, it was demonstrated that the 4,4′,4″-tri(9-carbazoyl) triphenylamine host influenced strongly the performance of this WOLED. These results may be beneficial to the design of both material and device architecture for high-performance WOLED.

Keywords

White light Hybrid Color rendering index Organic light-emitting diodes Double emitting nanolayers
Liu, Baiquan, Miao Xu, Lei Wang, Hong Tao, Yueju Su, Dongyu Gao, Linfeng Lan, Jianhua Zou, and Junbiao Peng. 2014. “Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes With Double Emitting Nanolayers”. Nano-Micro Letters 6 (4):335-39. https://doi.org/10.1007/s40820-014-0006-4.
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. H. Sasabe, J. Kido, Development of high performance OLEDs for general lighting. J. Mater. Chem. C 1(9), 1699–1707 (2013). doi:10.1039/C2TC00584K
  2. Y.J. Tung, M.M.H. Lu, M.S. Weaver, M. Hack, J.J. Brown, High-efficiency white phosphorescent OLEDs for lighting. Proc. SPIE 5214, 114–123 (2004). doi:10.1117/12.514753
  3. B.W. D’Andrade, M.E. Thompson, S.R. Forrest, Controlling exciton diffusion in multilayer white phosphorescent organic light emitting devices. Adv. Mater. 14(2), 144–147 (2002). doi:10.1002/1521-4095(20020116)14:2%3C144::AID-ADMA144%3E3.0.CO;2-F
  4. Y. Sun, N. Giebink, H. Kanno, B. Ma, M. Thompson, S.R. Forrest, Management of singlet and triplet excitons for efficient white organic light-emitting devices. Nature 440, 908–912 (2006). doi:10.1038/nature04645
  5. M.S. Park, H.J. Park, O.Y. Kim, J.Y. Lee, High color rendering index in phosphorescent white organic light-emitting diodes using a yellowish-green dopant with broad light emission. Org. Electron. 14(6), 1504–1509 (2013). doi:10.1016/j.orgel.2013.03.014
  6. J.H. Jou, S.M. Shen, C.R. Lin, Y.S. Wang, Y.C. Chou, S.Z. Chen, Y.C. Jou, Efficient very-high color rendering index organic light-emitting diode. Org. Electron. 12(5), 865–868 (2011). doi:10.1016/j.orgel.2011.02.012
  7. D. Wang, W.L. Li, Z.S. Su, T.L. Li, B. Chu, D.F. Bi, L.L. Chen, W.M. Su, H. He, Broad wavelength modulating and design of organic white diode based on lighting by using exciplex emission from mixed acceptors. Appl. Phys. Lett. 89(23), 233511 (2006). doi:10.1063/1.2402879
  8. C.H. Chang, K.C. Tien, C.C. Chen, M.S. Lin, H.C. Cheng, S.H. Liu, C.C. Wu, J.Y. Hung, Y.C. Chiu, Y. Chi, Efficient phosphorescent white OLEDs with high color rendering capability. Org. Electron. 11(3), 412–418 (2010). doi:10.1016/j.orgel.2009.11.020
  9. S. Chen, G. Tan, W.Y. Wong, H.S. Kwok, White organic light-emitting diodes with evenly separated red, green, and blue colors for efficiency/color-rendition trade-off optimization. Adv. Funct. Mater. 21(19), 3785–3793 (2011). doi:10.1002/adfm.201100895
  10. Y. Hao, W. Meng, H. Xu, H. Wang, X. Liu, B. Xu, White organic light-emitting diodes based on a novel Zn complex with high CRI combining emission from excitons and interface-formed electroplex. Org. Electron. 12(1), 136–142 (2011). doi:10.1016/j.orgel.2010.10.019
  11. Y. Li, W. Zhang, L. Zhang, X. Wen, Y. Yin, S. Liu, W. Xie, H. Zhao, S. Tao, Ultra-high general and special color rendering index white organic light-emitting device based on a deep red phosphorescent dye. Org. Electron. 14(12), 3201–3205 (2013). doi:10.1016/j.orgel.2013.09.035
  12. B. Liu, M. Xu, L. Wang, X. Yan, H. Tao, Y. Su, D. Gao, L. Lan, J. Zou, J. Peng, Investigation and optimization of each organic layer: a simple but effective approach towards achieving high-efficiency hybrid white organic light-emitting diodes. Org. Electron. 15(4), 926–936 (2014). doi:10.1016/j.orgel.2014.02.005
  13. Y. Tao, Q. Wang, Y. Shang, C. Yang, L. Ao, J. Qin, D. Ma, Z. Shuai, Multifunctional bipolar triphenylamine/oxadiazole derivatives: highly efficient blue fluorescence, red phosphorescence host and two-color based white OLEDs. Chem. Commun. 77(1), 77–79 (2009). doi:10.1039/B816264F
  14. M.V.M. Rao, Y.K. Su, T.S. Huang, Y.C. Chen, White organic light emitting devices based on multiple emissive nanolayers. Nano-Micro Lett. 2(4), 242–246 (2010). doi:10.3786/nml.v2i4.p242-246
  15. F. Zhao, Z. Zhang, Y. Liu, Y. Dai, J. Chen, D. Ma, A hybrid white organic light-emitting diode with stable color and reduced efficiency roll-off by using a bipolar charge carrier switch. Org. Electron. 13(6), 1049–1055 (2012). doi:10.1016/j.orgel.2012.03.005
  16. R. Acharya, X.A. Cao, High-brightness organic light-emitting diodes based on a simplified hybrid structure. Appl. Phys. Lett. 101(5), 053306 (2012). doi:10.1063/1.4740272
  17. W.S. Jeon, T.J. Park, K.H. Kim, R. Pode, J. Jang, J.H. Kwon, High efficiency red phosphorescent organic light-emitting diodes with single layer structure. Org. Electron. 11(2), 179–183 (2010). doi:10.1016/j.orgel.2009.10.010
  18. Y. Li, K. Xu, X. Wen, L. Zhang, Y. Yin, S. Liu, X. Piao, W. Xie, High general and special color rendering index white organic light-emitting device with bipolar homojunction emitting layers. Org. Electron. 14(8), 1946–1951 (2013). doi:10.1016/j.orgel.2013.04.027
  19. G. Cheng, M. Mazzeo, S. D’Agostino, F.D. Sala, S. Carallo, G. Gigli, Pure white hybrid light-emitting device with color rendering index higher than 90. Opt. Lett. 35(5), 616–618 (2010). doi:10.1364/OL.35.000616
  20. Q. Wang, J. Ding, D. Ma, Y. Cheng, L. Wang, Highly efficient single-emitting-layer white organic light-emitting diodes with reduced efficiency roll-off. Appl. Phys. Lett. 94(10), 103503 (2009). doi:10.1063/1.3097028
  21. Q. Wang, J. Ding, Y. Cheng, L. Wang, D. Ma, Achieving highly efficient white organic light-emitting diodes with reduced efficiency roll-off. J. Phys. D-Appl. Phys. 42(6), 065106 (2009). doi:10.1088/0022-3727/42/6/065106
  22. Y. Chen, F. Zhao, Y. Zhao, J. Chen, D. Ma, Ultra-simple hybrid white organic light-emitting diodes with high efficiency and CRI trade-off: fabrication and emission-mechanism analysis. Org. Electron. 13(12), 2807–2815 (2012). doi:10.1016/j.orgel.2012.08.031
  23. Y. Tao, C. Yang, J. Qin, Organic host materials for phosphorescent organic light-emitting diodes. Chem. Soc. Rev. 40(5), 2943–2970 (2011). doi:10.1039/C0CS00160K
  24. Y.S. Seo, D.G. Moon, Highly efficient blue phosphorescent organic light-emitting devices using simple structures with thin 1,1-bis[(di-4-tolyamino)phenyl]cyclohexane layers. Synth. Met. 160(1–2), 113–115 (2010). doi:10.1016/j.synthmet.2009.10.016
  25. P.S. Davids, I.H. Campbell, D.L. Smith, Device model for single carrier organic diodes. J. Appl. Phys. 82(12), 6319 (1997). doi:10.1063/1.366522
  26. C. Wu, S. Tao, M. Chen, H.W. Mo, T.W. Ng, X. Liu, X. Zhang, W. Zhao, C.S. Lee, A new multifunctional fluorenyl carbazole hybrid for high performance deep blue fluorescence, orange phosphorescent host andfluorescence/phosphorescence white OLEDs. Dyes Pigm. 97(2), 273–277 (2013). doi:10.1016/j.dyepig.2012.12.028
  27. R. Shangguan, G. Mu, X. Qiao, L. Wang, K.W. Cheah, X. Zhu, C.H. Chen, Low sublimation temperature cesium pivalate complex as an efficient electron injection material for organic light-emitting diode devices. Org. Electron. 12(11), 1957–1962 (2011). doi:10.1016/j.orgel.2011.08.005
  28. Q. Fu, J. Chen, H. Zhang, C. Shi, D. Ma, Solution-processed single-emitting-layer white organic light-emitting diodes based on small molecules with efficiency/CRI/color-stability trade-off. Opt. Express 21(9), 11078–11085 (2013). doi:10.1364/OE.21.011078
  29. S. Reineke, K. Walzer, K. Leo, Triplet-exciton quenching in organic phosphorescent light-emitting diodes with Ir-based emitters. Phys. Rev. B 75, 125328 (2007). doi:10.1103/PhysRevB.75.125328
  30. X.H. Yang, S.J. Zheng, H.S. Chae, S. Li, A. Mochizuki, G.E. Jabbour, Fluorescent deep-blue and hybrid white emitting devices based on a naphthalene-benzofuran compound. Org. Electron. 14(8), 2023–2028 (2013). doi:10.1016/j.orgel.2013.03.012
  31. B. Liu, L. Wang, J. Zou, H. Tao, Y. Su, D. Gao, M. Xu, L. Lan, J. Peng, Investigation on spacers and structures: A simple but effective approach toward high-performance hybrid white organic light emitting diodes. Synth. Met. 184, 5–9 (2013). doi:10.1016/j.synthmet.2013.09.023
Read More
Author biographies are not available.
Download this PDF file
PDF
Statistic
Read Counter : 2293 Download : 1742

Most read articles by the same author(s)

1 2 > >>