Oligo electroluminescence

M.R. Robinson, S. Wang, A.J. Heeger, and G.C. Bazan, A tetrahedral oligo(phenylene vinylene) molecule of intermediate dimensions effect of molecular shape on the morphology and electroluminescence of organic glasses, Adv. Funct. Mater., 11 413 419, 2001. 

More examples include the use of Ir(III) complexes in dendrimers [136] and as pendants in oligo- or polymeric lluorene (or carbazole), in part already discussed in Sect. 3.4 [76,137,138]. Both cases illustrate viable methods to solve the problem of phase separation in electroluminescent polymers doped with Ir(III) complexes and are not treated here in detail. 

Photoluminescence and electroluminescence are observed in PTs. The fluorescence lifetime and the fluorescence quantum yield of oligo(thiophene)s increase with increasing ring number (see Sect. 4.1.1) [360]. In quasi-one-dimensional... 

J. Griiner, H. F. Wittmann, P. J. Hamer, R. H. Friend, J. Huber, U. Scherf, K. Mullen, S. C. Mora-tti, and A. B. Holmes, Electroluminescence and photoluminescence investigations of the yellow emission of devices based on ladder-type oligo(para-phenyl-ene)s, Synth. Met. 67 181 (1994). 

Oligothiophenes with well defined structures have recently received a great deal of attentions not only as a model eompoimds for conducting polymers, but also as anew class of functional r-electron systems [153], Since the initial discovery of organic compounds showing metallic conductivity, for which 2000 Nobel prize in chemistry was awarded [154-156], oligo- and polythiophenes have attracted much attention as advanced molecules with practical use in electronic devices [157-160] and their potential application in field-effect transistors [161], photovoltaic devices [162] and organic electroluminescent devices [163],... 

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