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Performance Optimization Of Organic UV Photo Appliances Based On MgZnO

Posted on:2024-05-30Degree:MasterType:Thesis
Country:ChinaCandidate:M H LiFull Text:PDF
GTID:2542306941480554Subject:agriculture
Abstract/Summary:PDF Full Text Request
With the vigorous development of maritime transportation and the enhancement of environmental protection awareness,the transformation of the traditional energy of ships to green energy electric power propulsion system has accelerated the pace.At the same time,with the rapid development of intelligent equipment,the power grid system of ships has become increasingly complex,so the power safety has become the focus of ship safety.Generally speaking,electric fire is the burning of combustibles caused by the discharge of electric wires due to aging and other reasons.However,because the ultraviolet light of corona discharge is very weak,and most of the current detectors are difficult to maintain a good working state under such weak light intensity.So how to improve the performance of the UV photodetector and how to keep the device working under the weak light intensity is an urgent problem to be solved.In this work,Mg-doped Zn O NRs thin films were prepared by hydrothermal method,and PEDOT:PSS solution,which is easier to form film,was obtained by secondary doping.PN junction was formed by good contact with Mg Zn O NRs thin films by spinning coating method,and silver electrode was prepared by vacuum evaporation method.The device structure of the prepared UV photodetector is FTO glass/Zn O/Mg Zn O NRs/PEDOT:PSS/Mo O3/Ag.By changing the intensity of the light,the performance of the device under different light intensity is tested.The lowest light intensity detected by the device is 0.01m W/cm~2.An order of magnitude lower than the lowest light intensity that can be detected by a device of the same type.At the same time,the performance of the device is improved by changing the concentration of Mg Zn O growth solution.The solution concentration is 0.01 M,0.03 M,0.05 M and 0.07 M respectively.Then,the morphologies of the films grown by different solution concentrations are observed,and it is found that the concentration has a great influence on the morphology of the films.By calculating the light scattering value(Haze)of the thin film,it is found that the thin film grown with different solution concentration has different light scattering ability,and the strength of light scattering ability also affects the performance of the device,and finally realizes the optimization of the device performance.Through the change of solution concentration,this experiment realizes the control of light scattering ability,improves the performance of ultraviolet electrical components,achieves the purpose of weak ultraviolet light detection,provides a faster warning for the discovery of ship fire,and provides a safer guarantee for the ship.
Keywords/Search Tags:MgZnO NRs, Ultraviolet photoelectric detector, Ship fire warning, Light scattering, Weak light detection
PDF Full Text Request
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