Artículo
Pulsed and potentiostatic electrodeposition of CuInSe2 on gold-coated alumina substrates
Fecha de publicación:
20/04/2013
Editorial:
Springer
Revista:
Journal Of Applied Electrochemistry
ISSN:
0021-891X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Resumen
CuInSe2 thin films were deposited on gold coated alumina electrodes using constant and pulsed potential signals. In-situ electrochemical measurements were recorded with an atomic force microscope to follow CuInSe2 electrodeposition. The electrodeposited films were characterized employing scanning electron microscopy, energy dispersive spectroscopy, grazing incidence X-ray diffraction and Raman spectroscopy. The best stoichiometry is attained for films deposited at pulsed potentials of -0.7 V. These films are also the most compact, showing a homogeneous morphology. In contrast, potentiostatic films presented minor variations in their chemical composition with the deposition potential. The morphology presented porous coral-like structures. X-ray and Raman spectroscopy analysis of as-deposited films by either technique reveal the presence of secondary phases such as CuxSe and Se, especially at the most positive deposition potentials. After a thermal treatment at 500 ºC in Se vapor the crystallinity of the material is significantly enhanced and no secondary phases are present.
Palabras clave:
AFM
,
CUINSE2
,
ELECTRODEPOSITION
,
SEMICONDUCTOR
,
THIN FILMS
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - MAR DEL PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Valdes, Matias Hernan; Mollar, M.; Vazquez, Marcela Vivian; Marí, B.; Pulsed and potentiostatic electrodeposition of CuInSe2 on gold-coated alumina substrates; Springer; Journal Of Applied Electrochemistry; 43; 6; 20-4-2013; 619-628
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