Efficiency Enhancement of Polycrystalline Silicon Solar Cell Due to Integration of Ag Nanoparticles Fabricated by Rapid Thermal Annealing
In this work, efficiency enhancement of wafer based polycrystalline silicon (pc-Si) solar cells has been investigated by using plasmonic silver nanoparticles (Ag NPs) on the top surface. Ag NPs has been fabricated by rapid thermal processing (RTP) of non-continuous silver thin film at low temperature regime (200–300 °C) for various RTP durations (5–30 min). The results obtained reveals that an optimum RTP durations of 20 min leads to drastic reflectance reduction of pc-Si wafers with minimum average particle size at all temperatures. At 20 min RTP duration, the total reflectance of the pc-Si wafers integrated with Ag NPs reduced from 35.1% of the raw pc-Si wafer to 12.97, 17.9 and 19.31% respectively at 200, 250 and 300 °C in the wavelength region 300–800 nm. Around 3% increase in conversion efficiency of pc-Si solar cells is observed due to incorporation of plasmonic Ag nanoparticles.
Authors also wish to acknowledge Dr. Ashok K. Chauhan, Founder President, Amity University, Noida for his continuous encouragement and kind support to carry out present research. Authors also wish to thank Mr. Anzar Gani from Indosolar Pvt. Ltd. for his valuable time and support.