Temperature dependant high output voltage generation via mechanical transducer by using surface modified (O2, CO2, NO2) ZnO nanowires

Here, we report high output piezoelectric voltage generation using ZnO nanowires oxidized at high temperature. The study has been carried out to observe behavior of ZnO nanowires in the presence of strong oxidizing gases (O, CO2, and NO2) at elevated temperature. The focus of the research was to gen...

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Bibliographic Details
Published in:Microelectronic engineering 2021-08, Vol.248, p.111614, Article 111614
Main Authors: Ahmad, Mansoor, Ahmad, M.K., Nafarizal, N., Soon, C.F., Suriani, A.B., Mohamed, A., Mamat, M.H.
Format: Article
Language:English
Subjects:
Carbon dioxide
Electric potential
High temperature
Nanogenerator
Nanowires
Nitrogen dioxide
Oxidation
Piezoelectric potential
Piezoelectricity
Room temperature
Schottky contact
Temperature
VING
Voltage
Zinc oxide
Zinc oxides
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Summary:Here, we report high output piezoelectric voltage generation using ZnO nanowires oxidized at high temperature. The study has been carried out to observe behavior of ZnO nanowires in the presence of strong oxidizing gases (O, CO2, and NO2) at elevated temperature. The focus of the research was to generate high piezoelectric voltage by using surface modified ZnO nanowires. VING (vertically integrated nanowire generator) has been exposed to oxidizing gases. ZnO nanowires oxidized with O2 have shown maximum high output voltage of 3.36 V at 200o C, showing net rise of 0.762 V as compared to voltage generated at room temperature. Similarly, ZnO nanowires modified with CO2 molecules have generated piezoelectric voltage of 2.589 V at 200o C, exhibiting a rise of 0.778 V as compared to the values recorded at room temperature and ZnO nanowires modified with NO2 have generated maximum output voltage of 3.307 V at 150o C, indicating net rise of 0.59 V to the voltage values achieved at room temperature. [Display omitted] •ZnO nanowires loaded with O2, NO2, and CO2 molecules have been used to enhance the piezoelectric output voltage.•Surface modified ZnO nanowires have been oxidized at high temperature to obtain the optimal results.•Reverse leakage current through the nanowires has been reduced considerably by surface modification.
ISSN:0167-9317
1873-5568
DOI:10.1016/j.mee.2021.111614