White light emission from two blue emitters of an equimolar (1:1) blend in single-layer device

Synthetic Metals

Volumn 150, Issue 2, 2005, Pages 189-193

  Kim, O K ^a   Kim, W H ^a   Huang, Z ^b   Je, J T ^a   Sung, C S P ^b  

^a NAVAL RESEARCH LABORATORY   (United States)

^b UNIVERSITY OF CONNECTICUT   (United States)

Author keywords

Electroluminescence; Photoluminescence; White light emission

Indexed keywords

CHROMOPHORES; COMPLEXATION; CURRENT VOLTAGE CHARACTERISTICS; ELECTROLUMINESCENCE; LIGHT EMISSION; LIGHT EMITTING DIODES; MULTILAYERS; OLIGOMERS; PHOTOLUMINESCENCE; TRANSPORT PROPERTIES;

BIPOLAR OLIGOMERS; BLUE EMITTERS; MOLECULAR DESIGN; WHITE LIGHT EMISSION;

POLYMER BLENDS;

EID: 17644420678     PISSN: 03796779     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.synthmet.2005.02.005     Document Type: Article

References (29)

1. Y.-Z. Lee, X. Chen, S.-A. Chen, P.-K. Wei, and W.-S. Fann J. Am. Chem. Soc. 123 2001 2296
2. B.-K. An, Y.-H. Kim, and D.-C. Shin Macromolecules 34 2001 3993
3. Y. Shirota, M. Kinoshita, T. Noda, K. Okumoto, and T.J. Ohara J. Am. Chem. Soc. 122 2000 11021
4. O.-K. Kim, A. Fort, M. Barzoukas, M. Blanchard-Desce, and J.-M. Lehn J. Mater. Chem. 9 1999 2227
5. O.-K. Kim, K.-S. Lee, H.Y. Woo, K.-S. Kim, G.S. He, J. Swiatkiewicz, and P.N. Prasad Chem. Mater. 12 2000 284
6. O.-K. Kim, H.Y. Woo, J.-K. Kim, W.B. Heuer, K.S. Lee, and C.-Y. Kim Chem. Phys. Lett. 364 2002 432
7. S.D. Ledesma, R.P. Oriz, O.-K. Kim, J.-M. Lehn, and J.T.L. Navarrete Chem. Eur. J. 10 2004 3805
8. R.P. Oritz, M.C.R. Delgado, O.-K. Kim, and J.T.L. Navarrete J. Am. Chem. Soc. 126 2004 13363
9. O.-K. Kim, Z. Huang, E. Peterman, S. Kirkpatrik, and C.S.P. Sung Chromogenic Phenomena in Polymers S.A. Jenekhe ACS Symposium Series 888 2005 Oxford University Press 161 172
10. The quantum yield (QY) of 303 was measured in dichloromethane using 9,10-diphenylanthracene as standard and the QY as a thin film is 0.42
11. 4, scan rate at 200 mV/s. The bandgap, 2.81 eV, is taken from the absorption edge, and that is somewhat smaller than that measured from the redox potentials
12. C. Dudley, M.G. Kuzyk, O.-K. Kim, et al., Unpublished results.
13. A single-layer device was fabricated by spin-casting a thin film (60 nm in thickness) with a chloroform solution of 303 (or with PVK) onto PEDOT-related ITO glass and subsequently, by vapor deposition of Mg:Ag alloy (16:1, 130 nm)
14. J. Kido, M. Kimura, and K. Nagai Science 267 1995 1332
15. R.H. Jordan, A. Dodabalapur, M. Strukelj, and T.M. Miller Appl. Phys. Lett. 68 1995 1192
16. R.S. Deshpande, and S.R. Forrest Appl. Phys. Lett. 75 1999 888
17. K. Yang, W. Gao, J. Zhao, J. Sun, S. Lu, and S. Liu Synth. Met. 132 2002 132
18. F. Steuber, J. Staudigel, M. Stoessel, and J. Simmerer Adv. Mater. 12 2000 130
19. Y. Liu, J. Guo, H. Zhang, and Y. Wang Angew. Chem. Int. Ed. 41 2002 182
20. C.-I. Chao, and S.-A. Chen Appl. Phys. Lett. 73 1998 426
21. J. Kido, H. Shionoya, and K. Nagai Appl. Phys. Lett. 67 1995 2281
22. K. Hutchinson, J. Gao, G. Schick, Y. Rubin, and F. Wudl J. Am. Chem. Soc. 121 1999 5611
23. Y. Yang, and Q. Pei Appl. Phys. Lett. 81 1997 3294
24. C.J. Tonzola, M.M. Alam, and S.A. Jenekhe Adv. Mater. 14 2002 1086
25. T. Granlund, L.A.A. Pettersson, M.R. Anderson, and O.J. Inganaes J. Appl. Phys. 81 1997 8097
26. G. Giro, M. Cocchi, J. Kalinowski, P. Di Marco, and V. Fattori Chem. Phys. Lett. 318 2000 137
27. J. Rommens, A.V.M. Van der Auweraer, and F.C. De Schryver J. Appl. Phys. 84 1998 4487
28. X.-T. Tao, Y.-D. Zhang, T. Wada, H. Sasabe, and H. Suzuki Adv. Mater. 10 1998 226
29. Such extraordinary large band broadening and band-shift in EL (of 303), as opposed to PL, are observed with another bipolar homolog, which has the same π-center but bearing a D/D pair of triphenylamine