Enhancement of Polycrystalline Silicon Solar Cell’s Efficiency through Electrospinning Coating Using Erbium Oxide

The current research focuses on enhancing the performance of Si solar cells by using Er2O3 (Erbium Oxide) in cubic crystalline nature serves as an anti-reflection coating material. An anti-reflective coating aims to improve the Efficient Power Conversion (EPC) of polycrystalline silicon wafers solar cells (PSSC) utilised in solar roof panels of the automotive sector. It also exhibits superior light transmittance and least light reflectance, which eventually leads to the increase EPC. Erbium oxide helps to convert low energy photons into high energy photons. The incident photons, which lies on the solar cell, gradually losses its energy to travel in a denser medium and dissipate in the form of heat energy. In order to overcome the rate of reflection, current research aims in synthesis of erbium oxide nanosheets using electrospinning deposition technique for varying deposition timings such as 1, 1.5 and 2 hours. The coated solar cells K1, K1.5 and K2 exert coating thickness of 15.94, 20.34 and 23.88 μm respectively. The K1.5 solar cell exhibits greatest optical rate of transmittance (90.12%) and lowest rate of reflection, which is comparatively greater than uncoated samples. The EPC of the sample was observed to be (18.79%) under a controlled environment illuminated by a neodymium radiated lamp. Based on the results and discussions, it is evident that the synthesized Er₂O₃ helps to control reflection losses, which eventually leads to increase in EPC.