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Low-voltage, high-efficiency nondoped phosphorescent organic light-emitting devices with double-quantum-well structure
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1.
1.Z. W. Liu, M. Guan, Z. Q. Bian, D. B. Nie, Z. L. Gong, Z. B. Li, and C. H. Huang, Adv. Funct. Mater. 16, 1441 (2006).
http://dx.doi.org/10.1002/adfm.200600099
2.
2.Q. X. Tong, S. L. Lai, M. Y. Chan, Y. C. Zhou, H. L. Kwong, C. S. Lee, and S. T. Lee, Chem. Mater. 20, 6310 (2008).
http://dx.doi.org/10.1021/cm801304t
3.
3.Y. H. Song, S. J. Yeh, C. T. Chen, Y. Chi, C. S. Liu, J. K. Yu, Y. H. Hu, P. T. Chou, S. M. Peng, and G. H. Lee, Adv. Funct. Mater. 14, 1221 (2004).
http://dx.doi.org/10.1002/adfm.200400137
4.
4.Y. Liu, K. Q. Ye, Y. Fan, W. F. Song, Y. Wang, and Z. M. Hou, Chem. Commun. (Cambridge) 2009, 3699.
5.
5.J. Wang, J. S. Yu, L. Li, T. Wang, K. Yuan, and Y. D. Jiang, Appl. Phys. Lett. 92, 133308 (2008).
http://dx.doi.org/10.1063/1.2907692
6.
6.Y. Divayana and X. W. Sun, Phys. Rev. Lett. 99, 143003 (2007).
http://dx.doi.org/10.1103/PhysRevLett.99.143003
7.
7.Y. Qiu, Y. D. Gao, P. Wei, and L. D. Wang, Appl. Phys. Lett. 80, 2628 (2002).
http://dx.doi.org/10.1063/1.1468894
8.
8.J. S. Huang, K. X. Yang, S. Y. Liu, and H. J. Jiang, Appl. Phys. Lett. 77, 1750 (2000).
http://dx.doi.org/10.1063/1.1311313
9.
9.S. H. Kim, J. Jang, J. M. Hong, and J. Y. Lee, Appl. Phys. Lett. 90, 173501 (2007).
http://dx.doi.org/10.1063/1.2731435
10.
10.T. J. Park, W. S. Jeon, J. W. Choi, R. Pode, J. Jang, and J. H. Kwon, Appl. Phys. Lett. 95, 103303 (2009).
http://dx.doi.org/10.1063/1.3224190
11.
11.S. M. Liu, B. Li, L. M. Zhang, H. Song, and H. Jiang, Appl. Phys. Lett. 97, 083304 (2010).
http://dx.doi.org/10.1063/1.3483131
12.
12.C. Adachi, M. A. Baldo, and S. R. Forrest, J. Appl. Phys. 87, 8049 (2000).
http://dx.doi.org/10.1063/1.373496
13.
13.G. F. He, M. Pfeiffer, K. Leo, M. Hofmann, J. Birstock, R. Pudzich, and J. Salbeck, Appl. Phys. Lett. 85, 3911 (2004).
http://dx.doi.org/10.1063/1.1812378
14.
14.P. Chen, Q. Xue, W. F. Xie, Y. Duan, G. H. Xie, Y. Zhao, J. Y. Hou, S. Y. Liu, L. Y. Zhang, and B. Li, Appl. Phys. Lett. 93, 153508 (2008).
http://dx.doi.org/10.1063/1.2998598
15.
15.S. F. Chen, Z. J. Wu, Y. Zhao, C. N. Li, J. Y. Hou, and S. Y. Liu, Org. Electron. 6, 111 (2005).
http://dx.doi.org/10.1016/j.orgel.2005.03.005
16.
16.S. Haneder, E. D. Como, J. Feldmann, M. M. Rothmann, P. Strohriegl, C. Lennartz, O. Molt, I. Munster, C. Schildknecht, and G. Wagenblast, Adv. Funct. Mater. 19, 2416 (2009).
http://dx.doi.org/10.1002/adfm.200900197
17.
17.T. Tsuzuki and S. Tokito, Adv. Mater. (Weinheim, Ger.) 19, 276 (2007).
http://dx.doi.org/10.1002/adma.200600845
18.
18.Z. Y. Xie, T. C. Wong, L. S. Hung, and S. T. Lee, Appl. Phys. Lett. 80, 1477 (2002).
http://dx.doi.org/10.1063/1.1450248
19.
19.C. Giebeler, H. Antoniadis, D. C. Bradley, and Y. Shirota, J. Appl. Phys. 85, 608 (1999).
http://dx.doi.org/10.1063/1.369413
20.
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Figures

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FIG. 1.

The normalized EL spectra of NPOLEDs with DQW structure at different driving voltages. Inset: schematic energy-level diagram of NPOLEDs with DQW structure. The energy-level data were cited from Refs. 13–16.

Image of FIG. 2.

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FIG. 2.

The voltage vs luminance curves of NPOLEDs with DQW structure. Inset: the current density vs power efficiency character of NPOLEDs with DQW structure.

Image of FIG. 3.

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FIG. 3.

Comparison of current and power efficiencies between device D and the device with QQW structure.

Tables

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Table I.

Summary of the EL performances of NPOLEDs with different well numbers using TPBi as PBL.

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2011-04-18
2014-04-23

Abstract

Low-voltage and high-efficiency nondoped phosphorescent organic light-emitting devices are fabricated by introducing a simple triplet double-quantum-well structure with an Ir(III) complex as potential well layer (PWL) and emitting layer (EML). The effects of various potential barrier layer (PBL) on device performances are discussed. Remarkably, the device with 1,3,5-tris(N-phenyl-benzimidazol-2-yl)benzene (TPBi) as PBL shows a low turn-on voltage of 2.30 V, a maximum power efficiency of 30.5 lm/W at 2.65 V and 24.5 lm/W with at 3.75 V. We attribute these to the efficient carrier/exciton confinement function of TPBi and the improvement of carrier injection/balance in PWL/EML by self-balancing effect.

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Scitation: Low-voltage, high-efficiency nondoped phosphorescent organic light-emitting devices with double-quantum-well structure
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/16/10.1063/1.3581216
10.1063/1.3581216
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