Laser irradiation and thermal treatment inducing selective crystallization in Sb2O3-Sb2S3 glassy films
L. F. Avila, A. Pradel, S. J. L. Ribeiro, Y. Messaddeq, M. Nalin
ARTIGO
Inglês
Agradecimentos: The authors are grateful to Grant 2654/2011 PNPD/CAPES, Grant 2013/07793-6, São Paulo Research Foundation - FAPESP, Grant 2008/57857-2 (FAPESP) and Grant 574017/2008 (CNPq) for financial support
Abstract: The influence of both thermal treatment and laser irradiation 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...
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Abstract: The influence of both thermal treatment and laser irradiation 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 nm 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 Sb2S3 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)
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
574017/2008
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2008/57857-2; 2013/07793-6
Fechado
Laser irradiation and thermal treatment inducing selective crystallization in Sb2O3-Sb2S3 glassy films
L. F. Avila, A. Pradel, S. J. L. Ribeiro, Y. Messaddeq, M. Nalin
Laser irradiation and thermal treatment inducing selective crystallization in Sb2O3-Sb2S3 glassy films
L. F. Avila, A. Pradel, S. J. L. Ribeiro, Y. Messaddeq, M. Nalin
Fontes
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Physica B: condensed matter v. 458, p. 67-72, Feb. 2015 |