Stable Nanoparticle Suspension for Smart Glass and Thin Film Photovoltaic Applications

Radhakrishna Sureshkumar, who serves as professor of physics and professor and chair of biomedical and chemical engineering at L.C. Smith College of Engineering and Computer Science of Syracuse University, has created a patent-pending novel method for the production of stable metal nanoparticle suspensions that can capture sunlight.

The scientists can ‘dial in’ to a particular wavelength of the spectrum by altering the suspension’s composition. Sureshkumar used suspensions having a mixture of various types of metal nanoparticles that can interact with the visible spectrum’s different wavelengths via a phenomenon called as ‘plasmon resonance’.

Following their introduction into a solution, the nanoparticles were agglomerated and settled down at the bottom of the solution due to their natural propensity. Such suspensions are naturally instable. Sureshkumar team tackled this critical issue by using micelle fragments to function as bridges between nanoparticles. Thus, they held in their place.

Sureshkumar team has collaborated with the Center for Functional Nanomaterials of Brookhaven National Laboratory to study the nano-suspensions utilizing small angle X-ray scattering methods to prove their capability to produce superior nanoparticle dispersions with adjustable optical properties.

Sureshkumar stated that this research could develop numerous applications in the energy field. The suspensions could be utilized to develop coatings that enhance the light capturing efficacy of thin film photovoltaic devices as well as in the production of multipurpose smart glasses for constructing windows that produce energy from the visible spectrum, while obstructing the entry of adverse ultraviolet rays, he said.

Source: http://www.syr.edu

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