102 Engineers' Way
P.O. Box 400741
Charlottesville, VA
Choi Lab

Department of Chemical Engineering,
University of Virginia
ail: jjc6z[at]virginia[dot]edu
Phone: 434-243-1822
Webmaster: Alex Chen
Choi Laboratory for Optoelectronic Nanomaterials
Department of Chemical Engineering
Principal Investigator
Joshua J. Choi
Assistant Professor, Department of Chemical Engineering, University of Virginia

B. E., Cooper Union (2006)
Ph.D., Cornell University (2012)
Postdoctoral Researcher, Columbia University (2014)

Awards and Honors
NASA Early Career Faculty Award (2015)
Virginia Space Grant Consortium New Investigator Award (2015)

Email: jjc6z@virginia.edu
Office: Chemical Engineering Building, Room 218
Phone: (434) 243-1822
Fax: 434-982-2658

Joshua J. Choi is Assistant Professor of Chemical Engineering at the University of Virginia. For undergraduate education, he attended Cooper Union to study chemical engineering where he became deeply fascinated by the concepts of nanotechnology. He then attended Cornell University for his graduate studies and investigated the properties of nanocrystal quantum dots and their applications in optoelectronic devices under supervision of Prof. Tobias Hanrath and Prof. Frank Wise. Among many other contributions to the field, he demonstrated that the photogenerated charge separation dynamics in quantum dot assemblies can be controlled by tuning the distance between the quantum dots. This insight soon led to the development of colloidal quantum dot light-emitting diodes with record brightness and efficiency, published in Nature Nanotechnology. From his doctoral research, he published fifteen peer reviewed journal papers, seven of them as a first author, in high impact journals such as Journal of the American Chemical Society, Nature Nanotechnology, Nano Letters, ACS Nano and Advanced Materials. Upon obtaining his Ph.D. degree in Applied Physics, he joined the Prof. Jonathan Owen's research group in the Department of Chemistry at Columbia University as a postdoctoral researcher to study metal-halide perovskites which have recently emerged as high performance photovoltaic materials. He soon made an important contribution to the field by demonstrating that disorders in metal-halide perovskites are prevalent and these disorders have critical impact on optoelectronic properties. He published three peer reviewed journal papers in Nano Letters and Journal of American Chemical Society during his two postdoctoral years. In August of 2014, he started his research at the University of Virginia focused on advancing the fundamental understanding of structure-property-performance relationships in hybrid organic-inorganic semiconductor materials. New insights obtained from his research will enable development of novel semiconductors with tailored properties for next generation solar cells, light-emitting diodes, medical imaging agents and spintronics.