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Improve angular dependence of emission intensity in top-emitting organic light-emitting devices by using curved surfaces as substrates

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, China

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Tong Yang

Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong

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Xiali Ou

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, China

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, and

Qiang Gao

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, China

E-mail Address: qianggao_jlu@163.com

Corresponding author.

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https://doi.org/10.1142/S0217984916500949Cited by:0 (Source: Crossref)

Abstract

We have demonstrated an effective way to suppress the viewing angle dependence of the emission intensity of top-emitting organic light-emitting devices (TOLEDs) by fabricating devices on curved surfaces. From this approach, curved light emission surface has been obtained and TOLEDs with curved surface exhibit a relatively dispersed light emission pattern. As a result, the variation of emission intensity with viewing angles can be relieved. In addition, we can almost observe the same luminance and efficiency in OLEDs with and without curved surface light emission.

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References

1. Y.-F. Liu et al., Opt. Lett. 37 (2012) 124. Crossref, Web of Science, ADS, Google Scholar
2. Y.-F. Liu et al., Opt. Lett. 37 (2012) 1796. Crossref, Web of Science, ADS, Google Scholar
3. D.-D. Zhang et al., Appl. Phys. Lett. 94 (2009) 223306. Crossref, Web of Science, ADS, Google Scholar
4. J. Y. Lee, J. H. Kwon and H. K. Chung, Org. Electron. 4 (2003) 143. Crossref, Web of Science, Google Scholar
5. Y.-G. Bi et al., Appl. Phys. Lett. 100 (2012) 053304. Crossref, Web of Science, ADS, Google Scholar
6. G. Lozano et al., Light: Sci. Appl. 2 (2013) e66. Crossref, Web of Science, Google Scholar
7. Y.-F. Liu et al., Org. Electron. 15 (2014) 478. Crossref, Web of Science, Google Scholar
8. Y. G. Bi et al., Adv. Mater, 25 (2013) 6969. Crossref, Web of Science, Google Scholar
9. Y. G. Bi et al., Sci. Rep. 4 (2014) 7108. Crossref, Web of Science, ADS, Google Scholar
10. Y. Jin et al., Adv. Mater. 24 (2012) 1187. Crossref, Web of Science, Google Scholar
11. S. Hofmann et al., Opt. Express 19 (2011) A1250. Crossref, Web of Science, ADS, Google Scholar
12. Y.-F. Liu et al., Org. Electron. 14 (2013) 1597. Crossref, Web of Science, Google Scholar
13. A. Dodabalapur et al., J. Appl. Phys. 80 (1996) 6954. Crossref, Web of Science, ADS, Google Scholar
14. X. L. Zhang et al., Opt. Lett. 38 (2013) 4382. Crossref, Web of Science, ADS, Google Scholar
15. S.-F. Hsu et al., Appl. Phys. Lett. 86 (2005) 253508. Crossref, Web of Science, ADS, Google Scholar
16. G. Xie et al., Org. Electron. 11 (2010) 2055. Crossref, Web of Science, Google Scholar
17. H. Kanno, Y. Sun and S. R. Forrest, Appl. Phys. Lett. 86 (2005) 263502. Crossref, Web of Science, ADS, Google Scholar
18. M.-T. Lee and M.-R. Tseng, Curr. Appl. Phys. 8 (2008) 616. Crossref, Web of Science, ADS, Google Scholar
19. R. H. Jordan, A. Dodabalapur and R. E. Slusher, Appl. Phys. Lett. 69 (1996) 1997. Crossref, Web of Science, ADS, Google Scholar
20. X.-L. Zhang et al., Org. Electron. 14 (2013) 1577. Crossref, Web of Science, Google Scholar
21. R. E. Slusher and C. Weisbuch, Solid State Commun. 92 (1994) 149. Crossref, Web of Science, ADS, Google Scholar
22. Y.-F. Liu et al., Org. Electron. 15 (2014) 2661. Crossref, Web of Science, Google Scholar
23. J. Cao, X. Jiang and Z. Zhang, Appl. Phys. Lett. 89 (2006) 252108. Crossref, Web of Science, ADS, Google Scholar