9684 – Materials and Methods Enabling 2D junctions on 3D particles

Set of research and design tools for engineering faceted semiconducting materials with superior (opto)electronic and photoelectrochemical properties

Abstract

The proposed invention represents a set of research and design tools for engineering faceted semiconducting materials with superior (opto)electronic and photoelectrochemical properties.

Advantages

Particulate semiconductor photocatalysts are promising systems for solar-to-fuel technologies. Key to attaining high energy conversion efficiencies in such systems is the effective separation of photogenerated electrons and holes within individual semiconductor particles. Effective separation can be facilitated using anisotropically shaped particles exposing facets with different work functions. These particle facets may form inter-facet junctions at their adjoining edges leading to spatial variations of electronic and photoelectrochemical properties along the particle surface even within the same facet at near-edge regions. The proposed technology offers a set of imaging tools, analytical framework and inter-facet junction concept for design and engineering of photocatalyst particles with superior (opto)electronic and photoelectrochemical properties.

Potential Applications

Engineered faceted semiconducting materials with superior (opto)electronic and photoelectrochemical properties for applications ranging from photo(electro)catalysis and energy science to electronics, photonics and related semiconductor technologies.

Contact Information

Name: Ryan Luebke

Email: rtl77@cornell.edu

Phone: 607-254-4483