Solar glazing based on reflective or absorptive coatings of noble metals or dielectric compounds respectively is well-known. However, the use of gold nano-particles in an absorptive role has hardly been considered. The performance of such coatings was assessed using an array of incandescent lamps as radiation source, and the results ranked against commercial glazing systems. The nanoparticle coatings attenuated the radiation by 40%. An additional 15% of the incoming energy was convected off the inside surface of the glass. The neutral color and simple manufacture of the coatings suggests that they might have applications on architectural glass.
Issue Section:
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