Optimasi Fabrikasi Anti-Reflective Coating berbasis PDMS dengan Konfigurasi Nano Fotonika untuk Meningkatkan Performansi dari Sel Surya

Abstract

Solar energy is a renewable energy source that has great potential to replace fossil energy, especially in Indonesia with irradiation on the western side of 4.5 kWh/m2 per day and the eastern side of 5.1 kWh/m2 per day. Solar cells, which turn solar energy into electrical energy, can be used to harness this solar energy. Based on the module utilized, solar cells are divided into three generations: the first generation is based on silicon wafers; the second generation is based on thin layers, and the third generation is based on nanotechnology. The average energy conversion efficiency of these solar panels ranges from 16% to 30%. Anti-reflective coating can be used to improve energy conversion efficiency. In this research, a flat template without a structure and a DVD template with a nanobelt structure were used to fabricate a PDMS anti-reflective coating using the replica molding technique. This research was conducted to determine the effect of variations in curing temperature and length of pretreatment time on solar cell performance, surface morphology, and reflectance in the wavelength range of 300-900 nm. The Fourier Transform Infrared (FTIR) spectra shows all functional groups that make up the PDMS compound exist in the anti-reflective coating. As demonstrated by SEM micrographs, the replica molding technique with a heat curing process can accurately reproduce the nanobelt structure of DVDs and flat templates. Anti-reflective coating with nanobelt structure and curing temperature of 50oC has the best reflectance of 5.53729% at a wavelength of 550 nm which is much smaller than the reflectance of crystalline silica solar cells of 38%. It is proven that the anti-reflective coating curing temperature and length of pretreatment time affects the performance of solar cells with an increase in power of 2.8105% to 10.3846%.