Advanced search
Start date
Betweenand
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Optical Properties and Surface Morphology of ZnTe Thin films Prepared by Multiple Potential Steps

Full text
Author(s):
Gromboni, Murilo F. [1] ; Lucas, Francisco W. S. [1] ; Mascaro, Lucia H. [1]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Carlos, Lab Eletroquim & Ceram LIEC, Dept Quim, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 25, n. 3, p. 526-531, Mar. 2014.
Web of Science Citations: 5
Abstract

In this work, the ZnTe thin films were electrodeposited using potentiostatic steps, on Pt substrate. The effect of steps number, the deposition time for each element (Zn or Te) and layer order (Zn/Te or Te/Zn) in the morphology, composition, band gap energy and photocurrent was evaluated. Microanalysis data showed that the ratio Zn/Te ranged from 0.12 and 0.30 and the film was not stoichiometric. However, the band-gap value obtained from in all experimental conditions used in this work was 2.28 eV, indicating film growth of ZnTe. The samples with higher Zn showed higher photocurrent, which was of the order of 2.64 µA cm-2 and dendritic morphology. (AU)

FAPESP's process: 09/00788-1 - Preparation and characterization of ZnTe and ZnSe thin films for the ECALE technique
Grantee:Murilo Fernando Gromboni
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 12/10947-2 - Preparation and characterization of MBSe thin films (M = Ag or Cu; B = In, Ga, Sb or Tl; and S = S or Se) for application in photovoltaic cells"
Grantee:Francisco Willian de Souza Lucas
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 10/18134-5 - Synthesis and electrochemical characterization of thin films of Cd1-x ZnxTe, ZnSe and ZnTe
Grantee:Lucia Helena Mascaro Sales
Support type: Regular Research Grants