Laser irradiation and thermal treatment inducing selective crystallization in Sb2O3-Sb2S3 glassy films

Autor(es)

Avila, L. F. ^[1] ; Pradel, A. ^[2] ; Ribeiro, S. J. L. ^[3] ; Messaddeq, Y. ^[3] ; Nalin, M. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Technol, BR-13484332 Limeira, SP - Brazil

^[2] Univ Montpellier 2, LPMC, UMR 5617, CC3, Montpellier - France

^[3] Sao Paulo State Univ, UNESP, Inst Chem, LAMF, Araraquara, SP - Brazil

^[4] Sao Paulo State Univ, UNESP, Inst Chem, LAVIE, Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PHYSICA B-CONDENSED MATTER; v. 458, p. 67-72, FEB 1 2015.
• Citações Web of Science: 3

Resumo

The influence of both thermal treatment and laser it on the structural and optical properties of films in the Sb2O3-Sb2S3 system was investigated. The films were prepared by RF-sputtering using glass compositions as raw materials. Irreversible photodarkening effect was observed after exposure the films to a 458 rim solid state laser, It is shown, for the first time, the use of holographic technique to measure in situ{''}, simultaneously and independently, the phase and amplitude modulations in glassy films. The films were also photo-crystallized and analysed ``in situ{''} using a laser coupled to a micro-Raman equipment. Results showed that 517253 crystalline phase was obtained after irradiation. The effect of thermal annealing on the structure of the films was carried out. Different from the result obtained by irradiation, thermal annealing induces the crystallization of the Sb2O3 phase. Photo and thermal induced effects on films were studied using UV-Vis and Raman spectroscopy, atomic force microscopy (AFM), thermal analysis (DSC), X-ray diffraction, scanning electron microscopy (MEV) and energy-dispersive X-ray spectroscopy (EDX). (C) 2014 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 08/57857-2 - Fotônica para comunicações ópticas
• Beneficiário: Hugo Luis Fragnito
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 13/07793-6 - CEPIV - Centro de Ensino, Pesquisa e Inovação em Vidros
• Beneficiário: Edgar Dutra Zanotto
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs