Solid-to-solid phase transformations of nanostructured selenium-tin thin films induced by thermal annealing in oxygen atmosphere
Abstract
The structural and morphological evolution of nanostructured thin films obtained from thermal evaporation of polycrystalline Sn-Se starting charge as a function of the subsequent annealing temperature in an oxygen flow has been analysed. High-resolution transmission electron microscopy, small area electron diffraction, digital image processing, x-ray diffraction and Raman spectroscopy have been employed in order to investigate the structure and the morphology of the obtained films. The results evidenced, in the temperature range from RT to 500°C, the transition of the material from a homogeneous mixture of SnSe and SnSe2 nanocrystals, towards a homogeneous mixture of SnO2 and SeO2 nanocrystals, with an intermediate stage in which only SnSe2 nanocrystals are present.
Autore Pugliese
Tutti gli autori
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Serra A. , Rossi M. , Buccolieri A. , Manno D.E.
Titolo volume/Rivista
AIP CONFERENCE PROCEEDINGS
Anno di pubblicazione
2014
ISSN
0094-243X
ISBN
Non Disponibile
Numero di citazioni Wos
3
Ultimo Aggiornamento Citazioni
27/04/2018
Numero di citazioni Scopus
Non Disponibile
Ultimo Aggiornamento Citazioni
Non Disponibile
Settori ERC
Non Disponibile
Codici ASJC
Non Disponibile
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