STUDI PENGARUH KETEBALAN PADA PDMS (Polydimethylsiloxane) BERSTRUKTUR NANO PERIODIK TERHADAP SIFATNYA SEBAGAI ANTI REFLEKTIF COATING

Abstract

This study aims to analyze the effect of anti-reflective coating (ARC) thickness on the transmittance and reflectance values produced by Polydimethylsiloxane (PDMS)-based nano-periodic templates. The ARC is designed to enhance solar cell efficiency by reducing reflectance and increasing light transmittance. The study employs a replica molding method using templates from blank DVDs, data-stored DVDs, and a flat surface as a comparison. The UV-Vis spectrophotometry results show that the nano-periodic structure achieved the highest transmittance of 93.32% and the lowest reflectance of 5.93%, compared to the flat template. Additionally, the optimal thickness was found to be 1.01 mm. Further application of ARC on mini solar cells showed a 35.02% improvement in power performance compared to solar cells without the ARC layer. The results of this study confirm that the structure within the ARC can enhance transmittance, and the use of PDMS as the ARC material is highly effective in improving solar cell efficiency. In addition to its elastic properties and ability to replicate micro-nano structures, PDMS also demonstrates relatively high transmittance, although reflectance was not significantly affected in this study. This research contributes significantly to the development of renewable energy technologies, particularly in maximizing solar energy potential in Indonesia. The use of PDMS-based ARC offers an innovative solution for optimizing solar cell performance commercially and sustainably.