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Rapid Energy Transfer and Improved Performance of Organic Light-Emitting Diodes Using Composite Film Based on π-Conjugated Polymers
Naoyuki Yamasaki,
Masahiko Watanabe,
Kimihiro Masuyama,
Yasuo Miyake,
Hitoshi Kubo,
Akihiko Fujii, and
Masanori Ozaki
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
(Received July 9, 2009; accepted July 17, 2009; published online October 20, 2009)
The optical and electrical properties of polymer composite films based on poly(2-methoxy-5-dodecyloxy-p-phenylenevinylene) (MDDOPPV) and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) have been studied. We investigated the time-resolved photoluminescence of the composite films and clarified the rapid intermolecular energy transfer from F8BT to MDDOPPV. As a result of the utilization of the polymer composite thin film as the emission layer of a light-emitting diode, a 23-fold increase in luminance was observed in comparison to that with a non composite MDDOPPV emission layer.
URL:
http://jjap.jsap.jp/link?JJAP/48/101502/
DOI: 10.1143/JJAP.48.101502
- K. Yoshino, Y. Ohmori, A. Fujii, and M. Ozaki:
Jpn. J. Appl. Phys. 46 (2007) 5655[JSAP].
- B. W. Ma, C. Yang, X. Gong, K. Lee, and A. J. Heeger: Adv. Funct. Mater. 15 (2005) 1617.
- Y. Yoshida, T. Nishimura, A. Fujii, M. Ozaki, and K. Yoshino:
Appl. Phys. Lett. 86 (2005) 141903[AIP Scitation].
- A. Fujii, T. Nishimura, Y. Yoshida, K. Yoshino, and M. Ozaki:
Jpn. J. Appl. Phys. 44 (2005) L1091[JSAP].
- S. V. Frolov, A. Fujii, D. Chinn, Z. V. Vardeny, K. Yoshino, and R. V. Gregory:
Appl. Phys. Lett. 72 (1998) 2811[AIP Scitation].
- A. Fujii, S. V. Frolov, Z. V. Vardeny, and K. Yoshino:
Jpn. J. Appl. Phys. 37 (1998) L740[JSAP].
- L. Chua, J. Zaumseil, J. Chang, E. C. Ou, P. K. Ho, H. Sirringhaus, and R. H. Friend:
Nature 434 (2005) 194[CrossRef].
- C. L. Donley, J. Zaumseil, J. W. Andreasen, M. M. Nielsen, H. Sirringhaus, R. H. Friend, and J. Kim:
J. Am. Chem. Soc. 127 (2005) 12890[CrossRef].
- B. J. Zaumseil, C. L. Donley, J. Kim, R. H. Friend, and H. Sirringhaus:
Adv. Mater. 18 (2006) 2708[CrossRef].
- M. Watanabe, N. Yamasaki, T. Nakao, K. Masuyama, H. Kubo, A. Fujii, and M. Ozaki:
Synth. Met. 159 (2009) 935[CrossRef].
- M. Hamaguchi and K. Yoshino:
Jpn. J. Appl. Phys. 33 (1994) L1478[JSAP].
- M. Hamaguchi and K. Yoshino:
Jpn. J. Appl. Phys. 34 (1995) L712[JSAP].
