Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/107066
Type: Artigo de evento
Title: Er Environment In A-si:h<er> Prepared By Pecvd
Author: Piamonteze C.
Tessler L.R.
Tolentino H.
Do Carmo Martins Alves M.
Weiser G.
Terukov E.
Abstract: The Er local environment of a-Si:H&lt;Er&gt; prepared by PECVD using a metalorganic precursor was determined by EXAFS. We found that in as-deposited samples Er is coordinated to 6 oxygen atoms at 2.28±0.01Å, very similar to Er2O3. Annealing at 420°C hardly affects the Er neighbor-hood, but higher annealing temperatures (starting at 600°C up to 1033°C) decrease the Er-O separation as much as 0.05Å, maintaining the Er average coordination around 6. This is interpreted as due to the formation of a carbon second neighbor shell. Our results show that the Er local environment is not related with the luminescence enhancement for annealing at moderate temperatures.
Editor: 
Rights: fechado
Identifier DOI: 
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0034431076&partnerID=40&md5=3530e8fbd3332320b799830ce85cde94
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


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