A Ce:YAG-poly(methyl methacrylate) (PMMA) composite was prepared by using the melt compounding method. The Structure and morphology were investigated by X-ray diffractometry, transmission electron microscopy, and small-angle X-ray scattering. The optical properties (emission, excitation, and fluorescence decay rate) of the composite were studied by using photoluminescence spectroscopy. The polymer−filler interactions were studied using 13C cross-polarization magic-angle spinning NMR spectroscopy (13C{1H} CP-MAS NMR). The results indicated that Ce:YAG particles are well-dispersed in the PMMA matrix without loss of their luminescence properties or significant spectral shift, thus suggesting that this composite can be valuable for advanced applications in white LED manufacture. A demonstration of its efficiency in white LED devices is also reported.

Saladino, M.L., Chillura Martino, D.F., Floriano, M., Hreniak, D., Marciniak, L., Strek, W., et al. (2014). Ce:Y3Al5O12−Poly(methyl methacrylate) Composite for White-Light-Emitting Diodes. JOURNAL OF PHYSICAL CHEMISTRY. C, 118, 9107-9113 [10.1021/jp412173g].

Ce:Y3Al5O12−Poly(methyl methacrylate) Composite for White-Light-Emitting Diodes

SALADINO, Maria Luisa;CHILLURA MARTINO, Delia Francesca;FLORIANO, Michele;CAPONETTI, Eugenio
2014

Abstract

A Ce:YAG-poly(methyl methacrylate) (PMMA) composite was prepared by using the melt compounding method. The Structure and morphology were investigated by X-ray diffractometry, transmission electron microscopy, and small-angle X-ray scattering. The optical properties (emission, excitation, and fluorescence decay rate) of the composite were studied by using photoluminescence spectroscopy. The polymer−filler interactions were studied using 13C cross-polarization magic-angle spinning NMR spectroscopy (13C{1H} CP-MAS NMR). The results indicated that Ce:YAG particles are well-dispersed in the PMMA matrix without loss of their luminescence properties or significant spectral shift, thus suggesting that this composite can be valuable for advanced applications in white LED manufacture. A demonstration of its efficiency in white LED devices is also reported.
Settore CHIM/02 - Chimica Fisica
Saladino, M.L., Chillura Martino, D.F., Floriano, M., Hreniak, D., Marciniak, L., Strek, W., et al. (2014). Ce:Y3Al5O12−Poly(methyl methacrylate) Composite for White-Light-Emitting Diodes. JOURNAL OF PHYSICAL CHEMISTRY. C, 118, 9107-9113 [10.1021/jp412173g].
File in questo prodotto:
File Dimensione Formato  
53_CeYAG_PMMA.pdf

Solo gestori archvio

Dimensione 4.66 MB
Formato Adobe PDF
4.66 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/96908
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 27
  • ???jsp.display-item.citation.isi??? 25
social impact