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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 343-346 |
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hamedi S, Hassani M. Fabrication of a Resistive photodetector based on Interdigitated Electrodes with CdS. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :343-346
URL: http://opsi.ir/article-1-2730-en.html
URL: http://opsi.ir/article-1-2730-en.html
Abstract: (683 Views)
In this paper, a photo detector based on the resistance change for visible wavelengths is fabricated. In the fabricated detector, interdigitated electrodes (IDE) made of copper (Cu) on a PCB board is used. CdS as the photosensitive layer is deposited on IDE electrodes. The resistance of the detector decreases in the response of the optical wavelengths of green (530nm), red (650nm) and white at room temperature. So, it indicates that the mentioned detector works based on the resistance change. The maximum responsivity is about 96.9% related to the wavelength of 530nm. Also, the recovery time of the green wavelength is longer compared to other optical wavelengths due to the higher absorption.
Type of Study: Experimental |
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