Thiazole yellow G dyed PVA films for optoelectronics: microstructrural, thermal and photophysical studies
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DOI: 10.1088/2053-1591/3/7/075301
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摘要: In this paper, we report the microstructural, optical and fluorescence properties of poly(vinyl alcohol) (PVA)/Thiazole Yellow G (TY) dye composite prepared by solvent casting. The formation change-transfer complex as a result interaction between molecules polymer chain is confirmed in FTIR, FT-Raman, XRD DSC studies. SEM studies present morphology samples. UV-visible absorption spectra possess characteristic peaks TY corresponding to n-π* transition along with peak PVA. composites exhibit decreasing energy gap increasing refractive index an increase wt.% dye. fluorescence-quenching phenomena are observed emission wavelength range 391–406 nm upon excitation vicinity maxima (335 nm) quantum yield 0.72 for lowest concentration bear high brightness, improved thermal stability, which make them promising material sensors optoelectronic applications.
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