Electrodeposition and characterization of thin selenium films modified with lead ad-atoms (2008)
- Authors:
- Autor USP: MACHADO, SERGIO ANTONIO SPINOLA - IQSC
- Unidade: IQSC
- DOI: 10.1016/j.apsusc.2008.03.038
- Subjects: SELÊNIO; SEMICONDUTORES (FÍSICO-QUÍMICA)
- Language: Inglês
- Abstract: The deposition and characterization of Se films doped with Pb underpotentially deposited (UPD) ad-atoms was studied in this work. The employed experimental techniques were cyclic voltammetry, chronoamperometry, electrochemical impedance spectroscopy, UV-vis spectroscopy and atomic force microscopy. The initial deposition of Se film by chronoamperometry yielded a thin film composed of approximately 700 layers. The Pb UPD on Se was achieved by chronoamperometry in a potential value previously determined in voltammetric experiments. This deposition yielded a deposition charge of approximately 7.5% of the total one. The film resistance altered from 320 O cm-2 for Se to 65 O cm-2 for the Se/Pb one. Flat band potential values and number of acceptors and donors were also calculated for both films and the values obtained were +0.95 and -0.51 V for Se and Se/Pb, respectively. The Se coating presented 1.2 × 1017 cm-3 acceptors while the Se/Pb one presented 3.2 × 1017 cm-3 donors. The band gap values for both films were 2.4 eV and 1.9 eV, correspondingly
- Imprenta:
- Source:
- Título: Applied Surface Science
- ISSN: 0169-4332
- Volume/Número/Paginação/Ano: v. 254, n. 17, p. 5612-5617, 2008
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
-
ABNT
CABRAL, Murilo Feitosa et al. Electrodeposition and characterization of thin selenium films modified with lead ad-atoms. Applied Surface Science, v. 254, n. 17, p. 5612-5617, 2008Tradução . . Disponível em: https://doi.org/10.1016/j.apsusc.2008.03.038. Acesso em: 31 dez. 2025. -
APA
Cabral, M. F., Suffredini, H. B., Pedrosa, V. de A., Tanimoto, S. T., & Machado, S. A. S. (2008). Electrodeposition and characterization of thin selenium films modified with lead ad-atoms. Applied Surface Science, 254( 17), 5612-5617. doi:10.1016/j.apsusc.2008.03.038 -
NLM
Cabral MF, Suffredini HB, Pedrosa V de A, Tanimoto ST, Machado SAS. Electrodeposition and characterization of thin selenium films modified with lead ad-atoms [Internet]. Applied Surface Science. 2008 ; 254( 17): 5612-5617.[citado 2025 dez. 31 ] Available from: https://doi.org/10.1016/j.apsusc.2008.03.038 -
Vancouver
Cabral MF, Suffredini HB, Pedrosa V de A, Tanimoto ST, Machado SAS. Electrodeposition and characterization of thin selenium films modified with lead ad-atoms [Internet]. Applied Surface Science. 2008 ; 254( 17): 5612-5617.[citado 2025 dez. 31 ] Available from: https://doi.org/10.1016/j.apsusc.2008.03.038 - Studies of nickel electrocrystallization on platinum ultramicroelectrodes
- Hydrogen evolution on electrodeposited Ni and Hg ultramicroelectrodes
- Study of anion adsorption on polycrystalline Pt by electrochemical quartz crystal microbalance
- Electrochemical deposition of the first Cd monolayer on polycrystalline Pt and Au electrodes. An Upd study
- Estudo da oxidação eletroquímica do etanol sobre eletrodos de Ni e Co
- Comportamento eletroquímico do herbicida ametrina
- Determinação do Fenitrothion usando métodos eletroanalíticos em formulações
- Voltammetic and rotating ring-disk studies of underpotential deposition of Ag and Cu on polycrystalline Au electrodes in aqueous 'H IND.2'S'O IND.4'
- Estudo da inibição da velocidade da reação enzimática acetilcolinesterase/acetilcolina pela adiçao dos pesticidas fenitrothion e carbaril
- Estudo mecanístico da redução eletroquímica do pesticida pendimethalin
Informações sobre o DOI: 10.1016/j.apsusc.2008.03.038 (Fonte: oaDOI API)
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
