en گروه سرامیک Ceramic Materials and Engineering Research Paper Research Paper <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif">CIGS solar cells are currently very high-efficiency thin-film solar cells. With regard to higher efficiency in solar cells, research is being conducted on the influence of both light scattering and plasmonic resonances due to metallic nano-structures. This article discusses the assessment of the incorporate plasmonic nanostructures on the absorber layer of a 1000 nm CIGS solar cell, in terms of light absorption and device performance. It is noted that decisions on material, size, and surface coverage (Occupied Factor) were important considerations that affected the performance. Opto-electrical assessment was used to investigate absorption, charge-carrier generation, current density-voltage response, power-voltage properties, and total efficiency. Using simulations, we discovered the aluminum nanosphere arrays (200 nm diameter, Occupied Factor 0.64) at the top of the absorber layer yielded the maximum efficiency (26.14%). This was shown by the resonances, and near-field distribution garnered from the nanospheres boost charge carrier generation, diminished recombination losses, and increased charge separation. Collectively, these raised the performance of the CIGS solar cells in this research and suggested hope for moving CIGS and potentially other photovoltaics forward using nanoscale plasmonic resonances.</span></span></span> chalcopyrite solar cell,Finite-Difference Time-Domain (FDTD) Technique,Noble metals,Plasmonic resonances,Characterizations of Optical and Electrical Properties 1 13 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-5777-1&slc_lang=en&sid=1 Marzieh Akbari Marzieh_akbari@physics.iust.ac.ir 1800319475328460021750 1800319475328460021750 No Iran University of Science & Technology Fatemeh Dabbagh Kashani f_dk@iust.ac.ir 1800319475328460021751 1800319475328460021751 Yes Iran University of Science & Technology Seyed Mohammad Mirkazemi mirkazemi@iust.ac.ir 1800319475328460021752 1800319475328460021752 No Iran University of Science & Technology