Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/95352
Type: Artigo de evento
Title: Nucleation And Growth Of Cdte1-xsx Nanocrystals Embedded In A Borosilicate Glass. Effects Of Sulfur Content And Two-step Thermal Annealing
Author: Kellermann G.
Craievich A.F.
Barbosa L.C.
Alves O.L.
Abstract: Nucleation and growth of CdTe1-xSx nanocrystals embedded in a borosilicate glass matrix and submitted to isothermal annealing were studied by small-angle X-ray scattering (SAXS). Two different sulfur contents (x=0.3 and x=0.7) were investigated. The formation and growth of the nanocrystals was studied in situ, maintaining the samples at a constant temperature (560 °C) inside a high-temperature cell. The effect of a nucleation pretreatment at 460 °C on the characteristics of nanocrystal formation and growth was also studied. The experimental results demonstrate that, in composites with high sulfur content (x=0.7), nanocrystals grow during the isothermal annealing by coarsening of preformed small crystals. In glasses with low sulfur content (x=0.3), nanocrystals grow by progressive diffusion of Cd, Te and S atoms initially dispersed in the glass matrix. © 2001 Elsevier Science B.V. All rights reserved.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/S0022-3093(01)00769-4
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0035501029&partnerID=40&md5=9b46ebb6f9065aa0a392a9ac98c142b1
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
2-s2.0-0035501029.pdf390.26 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.