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Emission Characteristics of White Organic Light-Emitting Diodes Using Blue Fluorescent and Red Phosphorescent Materials
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 Title & Authors
Emission Characteristics of White Organic Light-Emitting Diodes Using Blue Fluorescent and Red Phosphorescent Materials
Park, Chan-Suk; Ju, Sung-Hoo;
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 Abstract
We studied white organic light-emitting diodes using blue fluorescent and red phosphorescent materials. White single OLEDs were fabricated using SH-1 : BD-2 (3 vol.%) and CBP : (2 vol.%) as emitting layer (EML). The white single OLED using SH-1 : BD-2 (3 vol.% 8 nm) / CBP : (2 vol.% 22 nm) as emitting layer showed maximum current efficiency of 8.8 cd/A, Commission Internationale de l`Eclairage (CIE) coordinates of (0.403, 0.351) at , and variation of CIE coordinates with (, ) from 500 to . The white tandem OLED using SH-1 : BD-2 (3 vol.% 12 nm) / CBP : (2 vol.% 18 nm) showed maximum efficiency of 19.6 cd/A, CIE coordinates of (0.354, 0.365) at , and variation of CIE coordinates with (, ) from 500 to . Maximum current efficiency of the white tandem OLED was more twice as high as the single OLED. Our findings suggest that tandem OLED was possible to produce improved efficiency and excellent color stability.
 Keywords
OLED;Tandem;Fluorescent;Phosphorescent;White;Color stability;
 Language
Korean
 Cited by
 References
1.
H. J. Kim and C. W. Yi, J. KIEE, 26, 1 (2012).

2.
J. Y. Lee and S. H. Kim, J. KIC News, 10, 2 (2007).

3.
J. H. Lee, J. I. Lee, and H. Y. Chu, Synth. Met., 159, 991 (2009). [DOI: http://dx.doi.org/10.1016/j.synthmet.2008.12.031] crossref(new window)

4.
F. Jing, L. Feng, G. Wenbao, and L. Shiyong, Appl. Phys. Lett., 78, 3947 (2001). [DOI: http://dx.doi.org/10.1063/1.1379788] crossref(new window)

5.
C. W. Ko and Y. T. Tao, Appl. Phys. Lett., 79, 4234 (2001). [DOI: http://dx.doi.org/10.1063/1.1425454] crossref(new window)

6.
T. Tsuboi, H. Murayama, S. J. Yeh, and C. T. Chen, Opt. Mater., 29, 1299 (2007). [DOI: http://dx.doi.org/10.1016/j.optmat.2006.06.005] crossref(new window)

7.
V. Sivasubramaniam, F. Brodkorb, S. Hanning, H. P. Loebl, V. van Elsbergen, H. Boerner, U. Scherf, and M. Kreyenschmidt, J. Fluor. Chem., 130, 640 (2009). [DOI: http://dx.doi.org/10.1016/j.jfluchem.2009.04.009] crossref(new window)

8.
H. D. Chun and S. H. Ju, J. Korean Inst. Electr. Electron. Mater. Eng., 25, 11 (2012).

9.
L. S. Liao, K. P. Klubek, and C. W. Tang, Appl. Phys. Lett., 84, 167 (2004). [DOI: http://dx.doi.org/10.1063/1.1638624] crossref(new window)

10.
C. S. Park and S. H. Ju, J. Kor. Inst. Surf. Eng., 48, 115 (2015). [DOI: http://dx.doi.org/10.5695/JKISE.2015.48.3.115] crossref(new window)

11.
C. S. Park and S. H. Ju, J. Korean Inst. Electr. Electron. Mater. Eng., 28, 9 (2015).

12.
T. H. Kwak and S. H. Ju, J. Kor. Inst Surf. Eng., 47, 3 (2014).