Electrical and Optical Properties of Soda-Lime Glass Coated Using High Voltage Electrodeposition Technique

High voltage electrodeposition technique was successfully employed in coating a low conductive glass. The technique involved the use of constant input voltage (e.g., 2000V) to coat the soda-lime glass electrode. Dissolved copper sulfate pentahydrate in sulfuric acid-water solution served as the electrolyte in the deposition process. The surface conductivity of the electrodeposited coated glass improved compared to that of the uncoated glass. The surface conductivity increased as high as 735% at 30 minutes deposition time using 2000 V input voltage. However, the transmittance decreased with surface conductivity. This indicated that the conductive particles that adhered on the surface were blocking the passage of light. Furthermore, the AFM image shows that the adhered particles were deposited besides the scratched region. This observation supports the need to roughen the glass surface before employing the high voltage electrodeposition technique.