Investigation of the changes in the electrical parameters of solar panels with the passage of operation time

Davud Mostafa Tobnaghi *

Department of Electrical Engineering, Parsabad Moghan Branch, Islamic Azad University, Parsabad Moghan, Iran.
 
Research Article
Global Journal of Engineering and Technology Advances, 2023, 15(03), 062–066.
Article DOI: 10.30574/gjeta.2023.15.3.0099
Publication history: 
Received on 27 April 2023; revised on 06 June 2023; accepted on 08 June 2023
 
Abstract: 
After several years of using solar cells, its electrical parameters are degraded. in this paper, to simulate of aging, solar cells were exposed to the different doses of gamma radiation. The (I–V) characteristics of silicon solar cells were studied before and after gamma irradiation. Experimental results showed that the electrical parameter of solar panel such as short circuit current, open circuit voltage, and efficiency decrease with the increase of the gamma doses. As well as, dependence of Voc and Isc according to the absorbed dose for different illumination levels has been investigated.
 
Keywords: 
Silicon Solar Cell; Current–Voltage Characteristics; Short Circuit Current; Open Circuit Voltage; Gamma Radiation
 
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