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Dependence of the photophysical properties of the exciplex in the polymer blends on the composite ratio and the excitation wavelengths

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Abstract

We investigate the dependence of the optical spectral properties of the exciplex in a polymer blend consisting of Poly(9,9′-dioctylfluorene-co-benzotiadiazole)(ADS133YE) and poly(9,9′-dioctylfluorene-co-bis-N,N′-(4-butylphenyl)-bis-N,N′-phenyl-l,4-phenylenediamine)(A DS232GE) on the excitation wavelengths and on the composite ratio using steady-state and transient spectroscopy. Experimental results show the most efficient exciplex’s emission at 1:6 (ADS133YE: ADS232GE) in 380 nm.

© 2009 OSA, IEEE Photonics Society, SPIE, COS, CIC

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