Next Article in Journal
Comprehensive Study of Lanthanum Aluminate High-Dielectric-Constant Gate Oxides for Advanced CMOS Devices
Next Article in Special Issue
Transparent Conducting Oxides—An Up-To-Date Overview
Previous Article in Journal
Template-Based Geometric Simulation of Flexible Frameworks
Open AccessArticle

Formation of Indium-Doped Zinc Oxide Thin Films Using Ultrasonic Spray Pyrolysis: The Importance of the Water Content in the Aerosol Solution and the Substrate Temperature for Enhancing Electrical Transport

1
Departamento de Ingeniería Eléctrica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional CINVESTAV-IPN, SEES, Apartado 14740, México
2
Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apartado Postal J-48, Puebla 72570, Mexico
3
Instituto de Ciencias Básicas e Ingeniería de la Universidad Autónoma del Estado de Hidalgo-AAMF, Pachuca 42184, México
4
Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Ticoman del Instituto Politécnico Nacional, Apartado Postal 07340, D.F., México
*
Author to whom correspondence should be addressed.
Materials 2012, 5(3), 432-442; https://doi.org/10.3390/ma5030432
Received: 5 January 2012 / Revised: 10 February 2012 / Accepted: 29 February 2012 / Published: 12 March 2012
(This article belongs to the Special Issue Advances in Transparent Conducting Oxides)
Indium doped zinc oxide [ZnO:In] thin films have been deposited at 430°C on soda-lime glass substrates by the chemical spray technique, starting from zinc acetate and indium acetate. Pulverization of the solution was done by ultrasonic excitation. The variations in the electrical, structural, optical, and morphological characteristics of ZnO:In thin films, as a function of both the water content in the starting solution and the substrate temperature, were studied. The electrical resistivity of ZnO:In thin films is not significantly affected with the increase in the water content, up to 200 mL/L; further increase in water content causes an increase in the resistivity of the films. All films show a polycrystalline character, fitting well with the hexagonal ZnO wurtzite-type structure. No preferential growth in samples deposited with the lowest water content was observed, whereas an increase in water content gave rise to a (002) growth. The surface morphology of the films shows a consistency with structure results, as non-geometrical shaped round grains were observed in the case of films deposited with the lowest water content, whereas hexagonal slices, with a wide size distribution were observed in the other cases. In addition, films deposited with the highest water content show a narrow size distribution. View Full-Text
Keywords: zinc oxide; thin solid films; ultrasonic spray pyrolysis zinc oxide; thin solid films; ultrasonic spray pyrolysis
Show Figures

Figure 1

MDPI and ACS Style

Biswal, R.; Castañeda, L.; Moctezuma, R.; Vega-Pérez, J.; Olvera, M.D.L.L.; Maldonado, A. Formation of Indium-Doped Zinc Oxide Thin Films Using Ultrasonic Spray Pyrolysis: The Importance of the Water Content in the Aerosol Solution and the Substrate Temperature for Enhancing Electrical Transport. Materials 2012, 5, 432-442.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop