Electrodeposition and characterization of undoped and nitrogen-doped ZnSe films

Autor(es)

Manzoli, A. ^{[1, 2]} ; Eguiluz, K. I. B. ^{[3, 2]} ; Salazar-Banda, G. R. ^{[3, 2]} ; Machado, S. A. S. ^[2]

Afiliação do(s) autor(es)

^[1] Embrapa Agr Instrumentat, Natl Nanotechnol Lab Agribusiness LNNA, BR-13560970 Sao Carlos, SP - Brazil

^[2] Univ Sao Paulo, Inst Chem Sao Carlos IQSC, BR-13560970 Sao Carlos, SP - Brazil

^[3] Univ Tiradentes, Inst Technol & Res, BR-49032490 Aracaju, SE - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Materials Chemistry and Physics; v. 121, n. 1-2, p. 58-62, MAY 15 2010.
• Citações Web of Science: 10

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. (AU)

• Processo FAPESP: 03/03221-6 - Eletrodeposicao e caracterizacao de filmes finos dos compostos semicondutores de znte e znse sobre au e ito.
• Beneficiário: Alexandra Manzoli
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 06/50692-2 - O uso do metodo sol-gel para a producao de recobrimentos de sio2 e/ou ceo2 sobre ligas de aluminio utilizadas na industria aeronautica para a protecao contra a corrosao.
• Beneficiário: Giancarlo Richard Salazar Banda
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado