Preparation method of zinc oxide nanometer wafer array with large area and high orientation

Abstract

The invention relates to a preparation method of a zinc oxide nanometer wafer array with large area and high orientation, which belongs to the technical field of the preparation of nanometer material array, and comprises the following steps that: zinc nitrate hexahydrate and hexamethylene tetramine with equal mole number are dissolved in deionized water and are treated by ultrasonic wave for a long time to obtain reaction solution; an FTO conductive glass substrate which is loaded with a zinc oxide film with the thickness of 200 nm is repeatedly washed by acetone, absolute ethyl alcohol and deionized water, and finally the conductive glass substrate is dried to be used as a growth substrate. The substrate which is well treated is arranged into the reaction solution which is prepared in the first step to be heat preserved in different stages after being sealed, and the substrate is washed and dried to obtain the zinc oxide nanometer wafer array. The preparation method has the advantages that: the prepared product has large yield and large specific area, low reaction temperature, high efficiency and low cost, and is applicable to the parts such as dye sensitization solar battery, and is particularly applicable to the industrialized mass production.

Description

technical field [0001] The invention belongs to the technical field of preparation of nanomaterial arrays, and in particular provides a method for preparing a large-area and high-orientation zinc oxide nano-flake array. A zinc oxide nano-flake array with consistent orientation is synthesized by a multi-stage hydrothermal method. Large-area aligned ZnO nanoflake arrays were prepared by a simple process. Background technique [0002] ZnO is a group II-VI compound and a wide bandgap direct bandgap semiconductor material with a bandgap width of 3.37eV at room temperature. It has high melting point and thermal conductivity, good chemical stability, and has the advantages of non-toxicity, abundant raw materials and low price. It has broad application prospects in ultraviolet light-emitting devices, field emission devices, surface acoustic wave devices, piezoelectric transducers, sensors, and solar cells. (M.H.Huang, S.Mao, H.Feick, H.Q.Yan, Y.Y.Wu, H.Kind, E.Weber, R.Russo, P.D....

AI Technical Summary

Problems solved by technology

The disadvantage is that the morphology of the products that can be prepared in a large area is relatively simple, and most of them are one-dimensional ZnO nanowire arrays.

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