A Study in Emission Properties of ZnO Thin-Film Electroluminescent Devices with different ZnO nanorod Structures

Autor: Chou, Xiang-Ru, 周相如
Rok vydání: 2017
Druh dokumentu: 學位論文 ; thesis
Popis: 105
In this experiment, P-Si(100) is used mainly as substrate, after deposit Al2O3 thin film and ZnO seed layer on the substrate by RF magnetron sputtering method. Then, grow one dimensional ZnO nanorods by used low temperature aqueous solution meth, by exploring vary with concentration and grown time of aqueous solution, and take advantage of methods such as scanning electron microscope, X-ray diffractometer, photoluminescence spectrum, CIE chromaticity coordinate, I-V curve, etc., the influence of the variety of the structure of ZnO nanorods on the optical property then different size analysis. The architecture of electroluminescence device prepared by this experiment is ITO/ZnO nanorods/ZnO seed/ Al2O3/P+-Si/Al, C6H12N4 and Zn(CH3COO)2 are used material in low temperature aqueous solution meth respectively, after mixed the two powders and aqueous solution, under the environment atmosphere of 90℃, synthesis one dimensional ZnO nanorods by different concentration and different grown time, in order to investigate the optical property influences of ZnO thin film electroluminescence device of one dimensional ZnO nanorods. In this experiment, three different concentration of aqueous solution be used by 0.01M 0.02M and 0.03M, Individual growth time is 30min 60min 90min and 120min to investigate the effect of sizes of nanorods optical property influences and find out optimization parameters, from the experiment data, the device of 0.03M aqueous solution with growth time is 60min have better luminescence intensity. With the growth time is longer, interstitial Zn and oxygen vacancies ratio will be increase substantially and visible wavelength intensity will more and more, main-wavelength will shift gradually towards visible wavelength.
Databáze: Networked Digital Library of Theses & Dissertations
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