- Sponsored Programs
-
-
About Sponsored Programs
The Office of Sponsored Programs (OSP) helps faculty and administrators compete for and win grants that strengthen the intellectual climate and improve the learning environment at City Tech. The office provides notices of grant opportunities and works with faculty and administrators over the life-cycle of a grant – from concept development through close-out.
-
-
- This event has passed.
Physics Seminar: Black phosphorus and phosphorene: from 3D to 2D and back
October 27, 2016 @ 12:00 pm - 1:00 pm
Presented by Dr. Scott C. Warren of University of North Carolina at Chapel Hill
Abstract:
Phosphorene, a two-dimensional (2D) form of elemental phosphorus, has attracted considerable interest in recent years. This interest is due, in large part, to predictions and observations of high mobility (several thousand cm2/Vs), a highly tunable band gap, anisotropic optoelectronic properties, and strong light-matter interactions. This talk provides an introduction to phosphorene and our experiments to explore these and related properties. To this end, we have developed a synthetic approach for production of phosphorene at a 10-gram scale. With significant quantities of phosphorene now available, we have measured the band gap as a function of flake thickness, finding that the band gap ranges from 0.33 eV in bulk to 2.1 eV in monolayers, a range that is larger than any other 2D material. We also describe our efforts to employ phosphorene in a variety of solar-energy harvesting systems, including in solar-to-chemical and solar-to-electric energy conversion. Perhaps most interesting, we show how phosphorene can be re-assembled into 3D structures that are electrically conductive but still remain quantum confined, therefore providing access to 3D materials with widely tunable optoelectronic properties.