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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 117-120 |
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bagheri F, haratizadeh H. The influence of particle size on the response of the UV-activated sensor based on nanoparticles of ZnO. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :117-120
URL: http://opsi.ir/article-1-2680-en.html
URL: http://opsi.ir/article-1-2680-en.html
1- Shahrood University of Technology
Abstract: (703 Views)
In this work, nanoparticles of ZnO with different grain sizes were synthesized by the hydrothermal method to investigate the influence of the grain size on gas-sensing performance. Sensors based on these nanoparticles were activated by UV radiation with a wavelength of 390 nm at the intensity of 0.55 mW/cm2. Sensors have been exposed to ethanol gas at low temperatures (80 °C) under UV light. The results indicate that the sensitivity is improved by reducing the grain size of the nanoparticles. It could be because the particle size of the materials synthesized was comparable to the Debye length.
Type of Study: Experimental |
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