Artículo
ZnO and copper indium chalcogenide heterojunctions prepared by inexpensive methods
Fecha de publicación:
15/11/2014
Editorial:
Elsevier
Revista:
Materials Chemistry and Physics
ISSN:
0254-0584
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Solution-based techniques were used to prepare ZnO/CuIn(Se, S)2 heterojunctions that serve as solar cell prototypes. A duplex layer of ZnO (compact + porous) was electrodeposited. Chalcogenide thin films were deposited using successive ionic layer adsorption and reaction method (SILAR). By subsequent thermal treatments in two different atmospheres, CuInSe2 (CISe) and CuInSe2−xSx (CISeS) were obtained. The composition and morphology of the annealed films were characterized by GXRD, micro-Raman spectroscopy and SEM.
Devices prepared with CISe and CISeS show a clear photo-response. The introduction of a buffer layer of TiO2 into the ZnO/chalcogenide interface was necessary to detect photocurrent. The presence of CISeS improves the response of the cell, with higher values of short circuit current density, open circuit potential and fill factor. These promising results show that it is possible to prepare photovoltaic heterojunctions by depositing chalcogenides onto porous ZnO substrates using low-cost solution-based techniques.
Palabras clave:
Chalcogenides
,
Optical Materials
,
Thin Films
,
Solar Cells
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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)
Articulos(PROBIEN)
Articulos de INST. DE INVESTIGACION Y DES. EN ING. DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Articulos de INST. DE INVESTIGACION Y DES. EN ING. DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Citación
Berruet, Mariana; Di Iorio, Yesica Dolores; Troviano, Mauricio Eduardo; Vazquez, Marcela Vivian; ZnO and copper indium chalcogenide heterojunctions prepared by inexpensive methods; Elsevier; Materials Chemistry and Physics; 148; 3; 15-11-2014; 1071-1077
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