Patent ID: 9708714
Date: 2017-07-18
CPC Classifications: B05D,C23C,G03F,Y10T

Claim:
1. A photochemical process for selective decoration of a hydrophobic surface with metal nanoparticles grown in situ by using metal precursors with a hydrophobic molecular domain and a photosensitizer of hydrophobic nature, the process comprising the following steps: activating a hydrophobic surface of a substrate by ultrasonic treatment in organic solvents; forming a photosensitizer/metal precursor/surface reactive adduct on the substrate through direct adsorption on the hydrophobic surface of a photosensitizer and a metal precursor, assisted by gas venting; irradiating thereafter the substrate with a monochromatic wavelength for a time not greater than 20 minutes; and removing by-products and washing the substrate surface with a solvent.