Dr. Sharp’s research is devoted to formation and characterization of functional semiconductor interfaces for applications in renewable energy, with a particular emphasis on solar energy conversion.  Central to this work is the establishment of relationships among structural, chemical, and electrical properties at semiconductor-based solid/solid and solid/liquid interfaces.

This work provides insight into materials interactions and defect properties through a combination of spectroscopic methods, including synchrotron X-ray techniques, time-resolved optical emission and absorption spectroscopies, and electrical measurements. This knowledge of energetic alignment, as well as charge transfer and trapping processes, is used to engineer interfacial properties by application of advanced deposition and processing methods.

Dr. Sharp’s research at JCAP is devoted to development of photocatalytic assemblies for solar fuels applications, with an emphasis on understanding and controlling charge transfer and trapping processes at semiconductor surfaces and interfaces.  This work includes fundamental studies of electronic structure and charge carrier dynamics in semiconductor photoelectrodes, investigation of interfacial phenomena in catalyst/semiconductor assemblies, and development of thin films that permit efficient and selective charge transport between components.

Dr. Sharp is the Thrust 3 Coordinator for Materials Integration and Components.


Recent Publications

Cooper, J. K. et al. On the Indirect Bandgap and Optical Properties of Monoclinic Bismuth Vanadate. The Journal of Physical Chemistry C, DOI: 10.1021/jp512169w (2015).

Li, Y. et al. Fabrication of Planar Heterojunction Perovskite Solar Cells by Controlled Low-Pressure Vapor Annealing. The Journal of Physical Chemistry Letters, DOI: 10.1021/jz502720a (2015).

Cooper, J. K. et al. Electronic Structure of Monoclinic BiVO4. Chemistry of Materials 26, 5365-5373, DOI: 10.1021/cm5025074 (2014).

Yang, J. H. et al. Efficient and Sustained Photoelectrochemical Water Oxidation by Cobalt Oxide/Silicon Photoanodes with Nanotextured Interfaces. Journal of the American Chemical Society 136, 6191-6194,DOI: 10.1021/ja501513t (2014).