Enhanced blue light emission in transparent ZnO:PVA nanocomposite free standing polymer films

B. Karthikeyan, T. Pandiyarajan, R. V. Mangalaraja

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

44 Citas (Scopus)

Resumen

ZnO:PVA nanocomposite films were prepared and their fluorescence and time resolved photoluminescence properties were discussed. X-ray diffraction and infrared spectroscopy results confirmed the ZnO:PVA interaction. Optical absorption spectra showed two bands at 280 and 367 nm which were ascribed to PVA and excitonic absorption band, respectively. Fluorescence spectra showed that the blue emission of ZnO was enhanced about tenfold through chemical interface electron transfer. The electron transfer from ZnO to PVA and its decay dynamics were experimentally analyzed through time resolved fluorescence measurements. The study revealed that the excited electrons found pathway through PVA to ground state which was slower than the pure ZnO nanoparticles.

Idioma originalInglés
Páginas (desde-hasta)485-490
Número de páginas6
PublicaciónSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volumen152
DOI
EstadoPublicada - 19 ago. 2016
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Enhanced blue light emission in transparent ZnO:PVA nanocomposite free standing polymer films'. En conjunto forman una huella única.

Citar esto