Autor(es)

Cabral, Murilo F. ^[1] ; Coelho, Dyovani ^[1] ; Machado, Sergio A. S. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Electrochimica Acta; v. 91, p. 361-366, FEB 28 2013.
• Citações Web of Science: 5

Resumo

Cd UPD on selenium was studied for an Au-EQCN modified electrode with Se thin-films previously deposited in acid media. The relationship between AFM, cyclic voltammetry and EQCN data provided an analysis of Cd UPD on a semiconductive layer. EQCN measurements demonstrated that the increase of mass during the potentiostatic deposition in UPD conditions was larger than expected for the maximum recovery allowed (i.e. 0.17 ML), which was related to diffusion through the Se thin-film. From AFM data it was possible to normalize voltammetric and gravimetric data, and our results were consistent with a controlled electrodeposition of CdSe structures. The result of the Cd UPD process was a controlled amount of CdSe. In addition, these findings also demonstrated that electrodeposition in UPD conditions can be used as a helpful technique in order to improve control in surface engineering. (C) 2012 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 04/09906-3 - Estudos do efeito do dopante (Pb, Cd e Zn) nas características semicondutoras de filmes eletrodepositados de selênio
• Beneficiário: Murilo Feitosa Cabral
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/07022-4 - Utilização da eletrodeposição em regime de subtensão na dopagem de filmes semicondutores eletrodepositados de selênio
• Beneficiário: Dyovani Coelho
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/09795-8 - 61st Annual Meeting of the International Society of Electrochemistry
• Beneficiário: Murilo Feitosa Cabral
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior