Electrodeposition and characterization of undoped and nitrogen-doped ZnSe films
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
20/10/2012
20/10/2012
2010
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Resumo |
Semiconducting films of (n-type) ZnSe and (p-type) nitrogen-doped ZnSe were electrodeposited by a linear-sweep voltammetric technique on to a substrate of fluorine-tin oxide (FM) glass ceramics. The films were characterized by scanning electron microscopy, energy-dispersive X-ray analysis and grazing-incidence X-ray diffraction. The results indicated that the material was deposited uniformly over the substrate, forming clusters when the Zn content of the bath was 0.1 mol L(-1) and a film when it was 0.2 or 0.3 mol L(-1). The effectiveness of doping the films with nitrogen by adding ammonium sulfate to the deposition solution was assessed by measuring the film-electrolyte interface capacitance (C) at various applied potentials (E(ap)) and plotting Mott-Schottky curves (C(-2) vs E(ap)), whose slope sign was used to identify p-type ZnSe. (C) 2009 Elsevier B.V. All rights reserved. Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) CNPq FAPESP[03/03221-6] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) FAPESP[06/50692-2] Brazilian research funding agencies Brazilian research funding agencies |
Identificador |
MATERIALS CHEMISTRY AND PHYSICS, v.121, n.1/Fev, p.58-62, 2010 0254-0584 http://producao.usp.br/handle/BDPI/31676 10.1016/j.matchemphys.2009.12.038 |
Idioma(s) |
eng |
Publicador |
ELSEVIER SCIENCE SA |
Relação |
Materials Chemistry and Physics |
Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE SA |
Palavras-Chave | #Thin films #Semiconductors #Electrochemical techniques #Surface properties #Doping effect #Microstructure #P-TYPE ZNSE #AREA OPTOELECTRONIC DEVICES #MOLECULAR-BEAM EPITAXY #SELENIDE THIN-FILMS #ZINC SELENIDE #N-TYPE #OPTICAL-PROPERTIES #SOLAR-CELLS #GROWTH #ZNO #Materials Science, Multidisciplinary |
Tipo |
article original article publishedVersion |