Lee et al.
Synthesis and Luminescent Property of Poly(9-(3-vinyl-phenyl)-anthracene)
800
600
400
200
0
polymer
were used to PVPA, all energy transfer was happened well.
By using rubrene dopant of yellow emission, doped film
provided white PL. PVPA is a good candidate for high
CRI value of more than 80 in OLED lighting device.
polymer + C545T 8%
polymer + DCM 8%
polymer + rubrene 4%
polymer + rubrene 8%
1000
800
600
400
200
0
350 400 450 500 550 600 650 700
Acknowledgment: This work was supported by the
National Research Foundation of Korea (NRF) grant
funded by the Korea government (MEST) (No. 201200
1846).
Wavelength (nm)
400 450 500 550 600 650 700 750 800 850
References and Notes
Wavelength (nm)
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(b) Y. I. Park, B. J. Lee, K. H, J. H. Lee, S. Y. Oh, and J. W. Park,
J. Nanosci. Nanotechnol. 12, 4325 (2012).
Figure 3. PL spectra of PVPA films doped with various dopants.
((ꢀ) PVPA, (•) PVPA+C545T 8%, (ꢁ) PVPA+DCM 8%, (ꢂ) PVPA+
rubrene 4%, (ꢀ) PVPA+rubrene 8%). (Inset figure: rubrene dopant case).
2. (a) R. H. Friend, R. W. Gymer, A. B. Holmes, J. H. Burroghes, R.
N. Marks, C. Taliani, D. D. C. Bradley, D. A. Dos Santos, J. L.
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121 (1999); (b) J. S. Kang, S. K. Kim, J. Y. Jung, J. H. Lee, J. Y.
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462, 267 (2007).
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Ed. 37, 402 (1998).
emitters based on two colors of sky blue and yellow are
needed. By using rubrene dopant of 4% and 8%, PL maxi-
mum had blue region of 455 and 480 nm and yellow region
of 550 nm. According to the increase of rubrene dopants,
550 nm intensity was increased. It can be explained by the
energy transfer from PVPA to rubrene. Therefore, white
PL and electroluminescence (EL) can be provided and
PVPA is a good candidate for solution processable emitter
for white OLED lighting.
5. H. Spreitzer, H. Becker, E. Kluge, W. Kreuder, H. Schenk, R.
Demandt, and H. Schoo, Adv. Mater. 10, 1340 (1998).
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For thermal property of PVPA, TGA and DSC were
Delivered by Ingenta to: M7.cMJ. aP.sJt.eMraUrknhaivme, rSs.itCy. Lo, S. W. Magennis, P. L. Burn, and I. D.
carried out. PVPA had stable thermal window up to 285 ꢀC
IP: 178.57.68.183 On: Sat, 18WJ.uSnam2u0el1, 6Ap1pl0. :P1h4ys:.4L2ett. 80, 2645 (2002).
ꢀ
from TGA and T was 105 C from DSC. T was not
8. S. A. Jenekhe, L. Lu, and M. M. Alam, Macromolecules 34, 7315
Copyright: American Scientific Publishers
g
m
(2001).
detected from 2nd heating DSC.
9. S. K. Kim, C. J. Lee, J. H. Lee, I. N. Kang, and J. W. Park, Thin
Solid Films 509, 132 (2006).
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Materials of Science and Engineering 24, 103 (2004).
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8992 (2003).
12. S. K. Kim, B. Yang, Y. Ma, J. H. Lee, and J. W. Park, J. Mater.
Chem. 18, 3376 (2008).
4. CONCLUSION
New blue emission polymer, PVPA was prepared based on
facile synthetic four steps. PVPA spin-coated film exhib-
ited vivid PL maximum values of 431, 455, 482 nm and
broad PL spectrum. Three dopants for green, red, yellow
Received: 8 November 2013. Accepted: 24 May 2014.
J. Nanosci. Nanotechnol. 15, 5438–5441, 2015
5441