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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An investigation into the influence of zinc precursor on the microstructural, photoluminescence, and gas-sensing properties of ZnO nanoparticles

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Author(s):
Catto, Ariadne C. [1, 2] ; da Silva, Luis F. [3] ; Bernardi, Maria I. B. [1] ; Li, Maximo S. [1] ; Longo, Elson [3] ; Lisboa-Filho, Paulo N. [2] ; Nascimento, Otaciro R. [1] ; Mastelaro, Valmor R. [1]
Total Authors: 8
Affiliation:
[1] Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP - Brazil
[2] UNESP, Grp Mat Avancados MAv, Bauru, SP - Brazil
[3] UNESP, Inst Quim, LIEC, Araraquara, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF NANOPARTICLE RESEARCH; v. 16, n. 12 DEC 2014.
Web of Science Citations: 9
Abstract

This paper describes the effect of different zinc precursors, acetate, oxide, and nitrate, on the structure, microstructure, photoluminescence, and ozone gas-sensing properties of zinc oxide (ZnO) nanoparticles. Transmission and scanning electron microscopy, and BET surface area show a dependence of the particle size and surface area with the precursor type. The ZnO sample synthesized from zinc nitrate shows the best photoluminescence (PL) emission. Although electron paramagnetic resonance shows in all samples the presence of a g-signal attributed to oxygen vacancies, it is not possible to correlate the presence of these defects with PL emission behavior. Furthermore, ZnO sample synthesized from zinc nitrate also shows the best ozone gas-sensing response, however, our results do not allow correlating the best PL emission in the visible region with the best sensor response to ozone gas. (AU)

FAPESP's process: 12/15170-6 - Synthesis and characterization of ZnO thin and thick films : application as gas sensors
Grantee:Ariadne Cristina Catto
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 11/22098-7 - Oxide semiconducting nanotubes: novel synthetic strategies and optical and structural properties studies
Grantee:Paulo Noronha Lisboa Filho
Support Opportunities: Regular Research Grants
FAPESP's process: 13/09573-3 - Synthesis and Characterization of the ZnO/SnO2 Heterostructures obtained by Hydrothermal Method: Gas Sensor Applications
Grantee:Luís Fernando da Silva
Support Opportunities: Scholarships in Brazil - Post-Doctoral