MUMBAI, India, Oct. 24 -- Intellectual Property India has published a patent application (202421032215 A) filed by Borosil Renewables Limited, Maharashtra, on April 23, 2024, for 'multi-layer coating for photovoltaic glass.'
Inventor(s) include Narendra Chundi; Dr. Jeetendra Sehgal; Biswanath Sen; and Tejal Sopan Mandlik.
The application for the patent was published on Oct. 24, under issue no. 43/2025.
According to the abstract released by the Intellectual Property India: "Multi-Layer Coating for Photovoltaic Glass The present invention discloses to a multi-layer coating for photovoltaic (PV) module glass substrates, designed to enhance solar energy harvesting efficiency. The coating 5 comprises a glass substrate with a refractive index between 1.5-1.6, a first spectral conversion layer, and a second omnidirectional anti-reflection (AR) layer. The layers are strategically positioned wherein the first layer having a refractive index of 1.45- 1.5, applied either on the top or bottom surface of the glass, shifts incident light to wavelengths more effectively absorbed by solar cells. The second layer with a 10 refractive index of 1.3-1.4, strategically positioned based on the location of the first, minimizes reflection losses and improves light transmission over a broad spectrum and range of angles. The resulting graded-index coating progressively reduces refractive index from the glass to air side, optimizing light transmission across broad wavelengths and angles with a transmittance gain of at least 1.8%. A novel coating 15 liquid formulation for the first layer is also disclosed, incorporating rare earth compounds, metal oxides, and porosity agents."
Disclaimer: Curated by HT Syndication.
