Impedance spectroscopy measurements of charge carrier mobility in 4,4'-N,N'-dicarbazole-biphenyl thin films doped with tris(2-phenylpyridine) iridium

Thin Solid Films

Volumn 518, Issue 2, 2009, Pages 452-456

  Ishihara, Shingo ^a,b   Okachi, Takayuki ^a   Naito, Hiroyoshi ^a  

^a Osaka Prefecture University   (Japan)

^b HITACHI LTD   (Japan)

Author keywords

CBP; Impedance spectroscopy; Ir(ppy)3; Mobility; Organic light emitting diodes

Indexed keywords

2-PHENYLPYRIDINE; CBP; EMISSIVE LAYERS; FREQUENCY DEPENDENCE; HOLE INJECTION; HOST MATRICES; IMPEDANCE SPECTROSCOPY; IMPEDANCE SPECTROSCOPY MEASUREMENTS; INJECTION SPACE; IR(PPY)3; MOBILITY; MOBILITY MEASUREMENTS; THEORETICAL BASIS; TRAPPING CENTERS;

CHARGE CARRIERS; CHLORINATION; CONTEXT SENSITIVE GRAMMARS; CURRENT DENSITY; IRIDIUM; LIGHT EMISSION; LIGHT EMITTING DIODES; ORGANIC LIGHT EMITTING DIODES (OLED); THIN FILMS;

HOLE MOBILITY;

EID: 70349880410     PISSN: 00406090     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tsf.2009.07.003     Document Type: Article

References (16)

1. Martens H.C.F., Broom H.B., and Blom P.W.M. Phys. Rev. B 60 (1999) R8489
2. Berleb S., and Brütting W. Phys. Rev. Lett. 89 (2002) 286601
3. Gommans H.H.P., Kemerink M., Andersson G.G., and Pijper R.M.T. Phys. Rev. B 69 (2004) 155216
4. Tsang S.W., So S.K., and Xu J.B. J. Appl. Phys. 99 (2006) 13706
5. Nguyen N.D., Schmerits M., and Loebl H.P. Phys. Rev. B 75 (2007) 75307
6. Okachi T., Nagase T., Kobayashi T., and Naito H. Thin Solid Films 517 (2008) 1331
7. Okachi T., Nagase T., Kobayashi T., and Naito H. Jpn. J. Appl. Phys. 47 (2008) 8965
8. Hulea I.N., van der Scheer R.F.J., Brom H.B., Langeveld-Voss B.M.W., van Dijken A., and Brunner K. Appl. Phys. Lett. 83 (2003) 1246
9. Vissenberg M.C.J.M., and Blom P.W.M. Synth. Met. 102 (1999) 1053
10. Azuma H., Asada K., Kobayashi T., and Naito H. Thin Solid Films 509 (2006) 182
11. Lee S.-B., Yasuda T., Yang M.-J., Fujita K., and Tsutsui T. Mol. Cryst. Liq. Cryst. 405 (2003) 67
12. Matsusue N., Ikame S., Suzuki Y., and Naito H. Appl. Phys. Lett. 85 (2004) 4046
13. Matsusue N., Ikame S., Suzuki Y., and Naito H. IEICE Trans. Electron. E87-C (2004) 2033
14. Matsusue N., Suzuki Y., and Naito H. Jpn. J. Appl. Phys. 44 (2005) 3691
15. M.A. Parshin, J. Ollevier, M.V. der Auweraer, P.L. Heremans (Eds.), Organic Optoelectronics and Photonics II, Proc. of SPIE 6192 (2006) 61922A.
16. 3 is 6.4 eV. No injection barrier is thus formed between the ITO electrode and the CBP films. M. Hoping, C. Schildknecht, H. Gargouri, T. Riedl, M. Tilgner, H. H. Johannes, Appl. Phys. Lett. 92 (2008) 213306.