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One-Pot Strategy For Coupling Chalcogenides With 1D Oxides

Description:

 

 

Background

Materials used in solar-driven applications such as photovoltaics, solar-fuel generation, pollutant remediation, and other photocatalytic processes are evolving, increasingly multifunctional, and complex. Many are researching new ways to capture solar-light and utilize its charge in a proficient manner.  The intimate coupling of low bandgap chalcogenide nanocrystals with wide bandgap oxide surface to enhance a broad band solar-spectrum absorbance, facile charge separation/transportation and boost in the efficiency is an area of immense interest. Our researchers at the University of Nevada, Reno have created an improved method to couple the oxide with chalcogenides.

 

Description

Our invention presents a facile and simple atmospheric pressure-based ‘hot solution dip-casting’ strategy to facilitate in situ coupling of the CdS nanocrystals with the titania (TiO2) surface. Our technology can be applied for solar light harvesting for ‘light to electricity’ production and various solar-driven applications. This unique process to couple the oxide with chalcogenides will benefit the industry because of its exemplary photoelectrochemical results and its numerous applications in the solar industry.

 

Advantages

  • Our method demonstrated a uniform coverage of the CdS nanocrystals over the TiO2 nanotube surface, with the potential to adapt the strategy for other 1 D oxide nanotubes.
  • Our strategy resulted with higher magnitudes of photocurrents compared to other complex approaches.
  • Our process improved the stability of the photoresponse compared to composites Our method for the integration of oxide-chalcogenide is much simpler with minimal extraneous additives found in other methods.

 

Patent & Publication

 

 

 

 

UNR15-013

Patent Information:
Category(s):
Materials
For Information, Contact:
Shannon Sheehan
Manager, Technology Commercialization
University of Nevada, Reno
ssheehan@unr.edu
Inventors:
Vaidyanathan (ravi) Subramanian
Satyajit Gupta
Pawan Pathak
Keywords: