Drexel University - Comprehensive, integrated academics enhanced by co-operative education, technology, and research opportunities. | Drexel University
Drexel University
Search events. View events.

All Categories

Click for help in using calendar displays. Print the contents of the current screen.
Display Format: 
Event Details
Notify me if this event changes.Add this event to my personal calendar.
Go Back
Colloquium: "Interesting & Unusual Quantum Mechanical Effects in Low-Dimensional 1D Nanostructures"
Start Date: 1/16/2014Start Time: 3:30 PM
End Date: 1/16/2014End Time: 4:30 PM

Event Description

Bryan M. Wong, PhD, assistant professor, Department of Chemistry, Drexel University


Abstract: The ability to tune electronic properties in nanomaterials holds great promise for incorporating these materials in next-generation transistors, circuits, and nanoscale devices. In particular, the use of predictive first-principles calculations plays a vital role in rationally guiding experimental efforts to optimize energy harvesting in nanoscale and mesoscale materials. In this seminar, I will highlight recent work in my group on low-dimensional 1D nanostructures using first-principles computational methods. First, I will highlight the use of large-scale DFT calculations to understand optical detection mechanisms in a joint experimental-theoretical study of functionalized carbon nanotubes. Finally, a new theoretical approach is presented to understand electron localization effects in heterostructure nanowires. At nanoscale dimensions, the formation of mobile electron gases in AlGaN/GaN core-shell nanowires leads to degenerate quasi-one-dimensional electron localization, in striking contrast to what would be expected from analogy with bulk heterojunctions. The reduction in dimensionality in these nanowires dramatically changes their electronic structure, leading to novel properties such as ballistic transport and conductance quantization. At the end of this seminar, I will give a live demonstration on running this user-friendly nanowire code (publicly available on my homepage) on a laptop computer to illustrate its predictive capabilities.

Contact Information:
Name: Robert Gilmore, PhD
Phone: (215) 895-2779
Email: robert.gilmore@drexel.edu
Disque Hall Room 919, 32 S 32nd St, Philadelphia, PA 19104
  • Current Students
  • Faculty

  • Display Month:

    Advanced Search (New Search)
    Date Range:
    Time Range:

    Special Features: 

    Select item(s) to Search

    Select item(s) to Search
    Select item(s) to Search
    Select item(s) to Search