2D ZIF-derived ZnO nanosheets—an example for improving semiconductor metal oxide detector performance in gas chromatography through material design strategy

2020 ◽  
Vol 307 ◽  
pp. 127580 ◽  
Author(s):  
Jianmei Gao ◽  
Hu Meng ◽  
Qi Hu ◽  
Junyu Chang ◽  
Liang Feng
Keyword(s):  
Gas Chromatography ◽  
Metal Oxide ◽  
Material Design ◽  
Design Strategy ◽  
Detector Performance ◽  
Zno Nanosheets ◽  
Semiconductor Metal Oxide

Enhanced output of ZnO nanosheet-based piezoelectric nanogenerator with a novel device structure

2021 ◽  
Author(s):  
Siju Mishra ◽  
P. Supraja ◽  
Vishnu V. Jaiswal ◽  
P. Ravi Sankar ◽  
R. Rakesh Kumar ◽  
...  
Keyword(s):  
Output Voltage ◽  
Photoluminescence Property ◽  
Cost Effective ◽  
Design Strategy ◽  
Aluminum Substrate ◽  
Device Structure ◽  
Novel Device ◽  
Voltage Output ◽  
Zno Nanosheets ◽  
Side Coating

Abstract We report the double-fold enhancement of piezoelectric nanogenerator output voltage with a simple design strategy. The piezoelectric nanogenerator is fabricated with ZnO nanosheets coated on both sides of the aluminum substrate in this new design strategy with necessary electrodes. The cost-effective hydrothermal method is employed to synthesize two-dimensional (2D) ZnO nanosheets on both sides of the aluminum substrate at a low growth temperature of 80˚C for 4 hours. The ZnO nanosheets were characterized for their morphology, crystallinity, and photoluminescence property. The nanogenerator is fabricated with a double-side coated aluminum substrate and compared its performance with a single-side coated aluminum substrate. The nanogenerators fabricated only with one side coating produced an output voltage of ~ 170 mV. In contrast, the nanogenerators fabricated with a double side coating produced an output voltage of ~ 285 mV. The nanogenerator with double-side coating produced ~1.7 times larger voltage output compared to the voltage output from one side coated nanogenerators fabricated with each side of the substrate. The enhancement in the output

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