Journal ArticleDOI
Structural, electrical and optical properties of zinc oxide produced by oxidation of zinc thin films
TLDR
In this article, the effects of oxidation temperature on the physical properties of polycrystalline zinc oxide thin films were investigated and it was found that increasing the oxidation temperature deteriorates the preferred c-axis orientation.Abstract:
We have investigated the effects of oxidation temperature on the physical properties of polycrystalline zinc oxide thin films. Zinc thin films are oxidized at different temperatures in air. We have found that increasing the oxidation temperature deteriorates the preferred c-axis orientation. Also, increasing the oxidation temperature enlarges the crystal size and increases the number of needle-shaped crystals on the surface of the ZnO samples. By increasing the oxidation temperature, more than zinc melting point, tensile stresses start to build up in the films. Also by increasing temperature, sheet resistance of the films decreases, while photoluminescence intensity ratio (green to orange) increases. Increasing the oxidation temperature reduces the transparency of the films, too. It is proposed that either an increase in the number of oxygen vacancies or a decrease in the volume of grain boundaries, is responsible for the observed behavior of the films at higher oxidation temperatures.read more
Citations
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Journal ArticleDOI
ZnO Thin Films Synthesized by Sol-Gel Process for Photonic Applications
L. Znaidi,Tahar Touam,Dominique Vrel,N. Souded,S. Ben Yahia,Ovidiu Brinza,Alexis Fischer,Azzedine Boudrioua +7 more
TL;DR: In this article, the precursors of ZnO are prepared by spin-coating onto glass substrates, and are transformed into ZnOs upon annealing at 550.
Journal ArticleDOI
Some aspects of the MOCVD growth of ZnO on sapphire using tert-butanol
Vincent Sallet,C Thiandoume,J. F. Rommeluère,Alain Lusson,A. Rivière,J P Rivière,Ouri Gorochov,Robert Triboulet,Vicente Muñoz-Sanjosé +8 more
TL;DR: In this article, the growth of ZnO on (0001) sapphire substrates using metalorganic chemical vapor deposition is reported, where Diethylzinc and tertiarybutanol were used, respectively, as zinc and oxygen sources.
Journal ArticleDOI
Optical and photoelectrical properties of ZnO thin films and the effects of annealing
M. J. H. Henseler,M. J. H. Henseler,W. C. T. Lee,W. C. T. Lee,P. Miller,P. Miller,Steven M. Durbin,Steven M. Durbin,Roger J. Reeves,Roger J. Reeves +9 more
TL;DR: In this article, the effect of post growth annealing using photoluminescence and photoconductivity for characterisation was studied using single-crystalline ZnO thin films were grown using plasma-assisted molecular beam epitaxy.
Journal ArticleDOI
Red luminescence in ZnO films prepared by a glycol-based Pechini method
TL;DR: In this paper, the structural and optical properties of ZnO thin films on fused quartz substrates were characterized by X-ray diffraction, scanning electron microscopy (SEM), optical transmittance spectrum, and photoluminescence (PL) spectrum.
Journal ArticleDOI
Photodetection and piezoelectric response from hard and flexible sponge-like ZnO-based structures
Rossana Gazia,Paolo Motto,Stefano Stassi,Stefano Stassi,Adriano Sacco,Alessandro Virga,Andrea Lamberti,Andrea Lamberti,Giancarlo Canavese +8 more
TL;DR: In this paper, a comprehensive characterization of sponge-like nanostructured zinc oxide films is proposed, with a marked attention to the exhibited sensing properties, including UV sensing capability, with photocurrents up to four orders of magnitude higher than current values measured in dark conditions.
References
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Book
Elements of X-ray diffraction
TL;DR: In this article, the authors present a chemical analysis of X-ray diffraction by Xray Spectrometry and phase-diagram Determination of single crystal structures and phase diagrams.
Book ChapterDOI
Electronic Processes in Zinc Oxide
TL;DR: In this paper, the electronic processes in zinc oxide are discussed, and the applications which depend in a direct way on the electronic process in ZnO are discussed in detail, including its use as a catalyst and as photocatalyst for a series of chemical reactions.
Journal ArticleDOI
Characterization of ZnO piezoelectric films prepared by rf planar‐magnetron sputtering
TL;DR: In this article, a detailed study of these films has been carried out using x-ray diffraction, scanning electron microscopy, reflection electron diffraction and optical measurement, and electromechanical measurement.
Journal ArticleDOI
Structures and SAW properties of rf‐sputtered single‐crystal films of ZnO on sapphire
T. Mitsuyu,S. Ono,K. Wasa +2 more
TL;DR: In this paper, surface acoustic wave properties, including phase velocity, a coupling coefficient, a propagation loss, and a temperature coefficient of delay, were measured for SAW propagating along the c-axis of the ZnO films, on the (0112) planes of sapphire.