Effect of substituents on the photoluminescence performance of Ir(III) complexes: Synthesis, electrochemistry and photophysical properties

Journal of Photochemistry and Photobiology A: Chemistry

Volumn 208, Issue 1, 2010, Pages 13-20

  Jayabharathi, J ^a   Thanikachalam, V ^a   Saravanan, K ^a  

^a ANNAMALAI UNIVERSITY   (India)

Author keywords

Absorption spectrum; Cyclic voltammetry; Emission spectrum; Imidazole ligand; Iridium complex

Indexed keywords

EID: 74249085752     PISSN: 10106030     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jphotochem.2009.07.027     Document Type: Article

References (35)

1. Tang C.W., and VanSlyke S.A. Organic electroluminescent diodes. Appl. Phys. Lett. 51 (1987) 913-915
2. Burroughes J.H., Bradley D.D.C., Brown A.R., Marks R.N., Mackay K., Friend R.H., Burns P.L., and Holmes A.B. Light-emitting diodes based on conjugated polymers. Nature 347 (1990) 539-541
3. Baldo M.A., Thompson M.E., and Forrest S.R. Phosphorescent materials for application to organic light emitting devices. Pure Appl. Chem. 71 (1999) 2095-2106
4. Thompson M.E., Burrows P.E., and Forrest S.R. Electrophosphorescence in organic light emitting diodes. Curr. Opin. Solid State Mater. Sci. 4 (1999) 369-372
5. Köhler A., Wilson J.S., and Friend R.H. Fluorescence and phosphorescence in organic materials. Adv. Mater. 14 (2002) 701-707
6. Lees A.J. Luminescence properties of organometallic complexes. Chem. Rev. 87 (1987) 711-743
7. Dixon I.M., Collin J.P., Sauvage J.P., Flamigni L., Encinas S., and Barigelletti F. A family of luminescent coordination compounds: iridium(III) polyimine complexes. Chem. Soc. Rev. 29 (2000) 385-391
8. 10 metal complexes. Chem. Soc. Rev. 28 (1999) 323-334
9. Tyson D.S., Bialecki J., and Castellano F.N. Ruthenium(II) complex with a notably long excited state lifetime. Chem. Commun. (2000) 2355-2356
10. 2]) complex. Organometallics 15 (1996) 1734-1739
11. Yam V.W.W., Yu K.L., Wong K.M.C., and Cheung K.K. Synthesis and structural characterization of a novel luminescent tetranuclear mixed-metal platinum(II)-copper(I) complex. Organometallics 20 (2001) 721-726
12. Yang Q.Z., Wu L.Z., Wu Z.X., Zhang L.P., and Tung C.H. Long-lived emission from platinum(II) terpyridyl acetylide complexes. Inorg. Chem. 41 (2002) 5653-5655
13. Ma Y., Zhang H., Shen J., and Che C.M. Electroluminescence from triplet metal-ligand charge-transfer excited state of transition metal complexes. Synth. Met. 94 (1998) 245-248
14. Ma Y., Che C.M., Chao H.Y., Zhou X., Chan W.H., and Shen J. High luminescence gold(I) and copper(I) complexes with a triplet excited state for use in light-emitting diodes. Adv. Mater. 11 (1999) 852-857
15. Lamansky S., Djurovich P., Murphy D., Abdel-Razzaq F., Lee H.E., Adachi C., Burrows P.E., Forrest S.R., and Thompson M.E. Highly phosphorescent bis-cyclometalated iridium complexes: synthesis, photophysical characterization and use in organic light emitting diodes. J. Am. Chem. Soc. 123 (2001) 4304-4312
16. Xie H.Z., Liu M.W., Wang O.Y., Zhang X.H., Lee C.S., Hung L.S., Lee S.T., Teng P.F., Kwong H.L., Zheng H., and Che C.M. Reduction of self-quenching effect in organic electrophosphorescence emitting devices via the use of sterically hindered spacers in phosphorescence molecules. Adv. Mater. 13 (2001) 1245-1248
17. Grushin V.V., Herron N., LeCloux D.D., Marshall W.J., Petrov V.A., and Wang Y. New, efficient electroluminescent materials based on organometallic Ir complexes. Chem. Commun. (2001) 1494-1495
18. Ostrowski J., Robinson M.R., Heeger A.J., and Bazan G.C. Amorphous iridium complexes for electrophosphorescent light emitting devices. Chem. Commun. (2002) 784-785
19. Su Y.J., Huang H.L., Li C.L., Chien C.H., Tao Y.T., Chou P.T., Datta S., and Liu R.S. Highly efficient red electrophosphorescent devices based on iridium isoquinoline complexes: remarkable external quantum efficiency over a wide range of current. Adv. Mater. 15 (2003) 884-888
20. Tamayo A.B., Alleyne B.D., Djurovich P.I., Lamansky S., Tsyba I., Ho N.N., Bau R., and Thompson M.E. Synthesis and characterization of facial and meridional tris-cyclometalated iridium(III) complexes. J. Am. Chem. Soc. 125 (2003) 7377-7387
21. 3) as a new class of light-emitting materials and their applications in electrophosphorescent devices. Chem. Commun. (2002) 206-207
22. D'Andrade B.W., Brooks J., Adamovich V., Thompson M.E., and Forrest S.R. White light emission using triplet excimers in electrophosphorescent organic light-emitting devices. Adv. Mater. 14 (2002) 1032-1036
23. Brooks J., Babayan Y., Lamansky S., Djurovich P.I., Tsyba I., Bau R., and Thompson M.E. Synthesis and characterization of phosphorescent cyclometalated platinum complexes. Inorg. Chem. 41 (2002) 3055-3066
24. Lamansky S., Djurovich P., Murphy D., Abdel-Razzaq F., Kwong R., Tsyba I., Bortz M., Mmui B., Bau R., and Thompson M.E. Synthesis and characterization of phosphorescent cyclometalated iridium complexes. Inorg. Chem. 40 (2001) 1704-1711
25. Singh M.P., Sasmal S., Lu W., and Chatterjee M.N. Synthetic utility of catalytic Fe(III)/Fe(II) redox cycling towards fused heterocycles: a facile access to substituted benzimidazole, bisbenzimidazole and imidazopyridine derivatives. Synthesis 10 (2000) 1380-1390
26. Chen L., Yang C., Qin J., Gao J., and Ma D. Tuning of emission: synthesis, structure and photophysical properties of imidazole, oxazole and thiazole-based iridium(III) complexes. Inorg. Chim. Acta 359 (2006) 4207-4214
27. Takizawa S., and Nishida J. Phosphorescence color tunable iridium complexes with ligands of 2-phenylimidazo[1,2-a]pyridine derivatives. Mol. Cryst. Liq. Cryst. 455 (2006) 381-385
28. Yoshinobu G., Noriko H., and Motoyoshi Y. Studies on azole compounds. II. Reaction of oxazole N-oxides with phenylisocyanate to give imidazole derivatives. Chem. Pharm. Bull. 18 (1970) 2000-2008
29. Nonoyama M. Benzo(h)quinolin-10-yl-N iridium(III) complexes. Bull. Chem. Soc. Jpn. 47 (1974) 767-768
30. Colombo M.G., and Guedel H.U. Synthesis and high-resolution optical spectroscopy of bis[2-(2-thienyl)pyridinato-C3,N′](2,2′-bipyridine)iridium(III). Inorg. Chem. 32 (1993) 3081-3087
31. DePriest J., Zheng G.Y., Goswami N., Eichhorn D.M., Woods C., and Rillema D.P. Structure, physical and photophysical properties of platinum(II) complexes containing bidentate aromatic and bis(diphenylphosphino)methane as ligands. Inorg. Chem. 39 (2000) 1955-1963
32. Okada S., Okinaka K., Iwawaki H., Furugori M., Hashimoto M., Mukaide T., Kamatani J., Igawa S., Tsuboyama A., Takiguchi T., and Ueno K. Substituent effects of iridium complexes for highly efficient red OLEDs. Dalton Trans. (2005) 1583-1590
33. Laskar I.R., and Chen T.-M. Tuning of wavelengths: synthesis and photophysical studies of iridium complexes and their application in organic light emitting devices. Chem. Mater. 16 (2004) 111-117
34. Mi B.-X., Wang P.-F., Liu M.-W., Kwong H.-L., Wong N.-B., Lee C.-S., and Lee S.-T. Thermally stable hole-transporting material for organic light-emitting diode: an isoindole derivative. Chem. Mater. 15 (2003) 3148-3151
35. Ranjan S., Lin S.Y., Hwang K.C., Chi Y., Ching W.L., Liu C.S., Tao Y.T., Chien C.H., Peng S.M., and Lee G.H. Realizing green phosphorescent light-emitting materials from rhenium(I) pyrazolato diimine complexes. Inorg. Chem. 42 (2003) 1248-1255