Comet Calendar

Physics Colloquium: Colloidal nanocrystals – from 0D to 1D and 2D

Dial-In Information

This talk will be on MS Teams.

Wednesday, September 15, 2021 at 4:00pm to 5:00pm

Virtual Event

Liangfeng Sun (Bowling Green State University)

Colloidal nanocrystals are promising materials for various optoelectronic device applications by their size- and shape-tunable optical and electronic properties. There is great interest in the development of low-temperature solution processing of nanocrystal-based devices for next-generation photovoltaics, photodetectors, light-emitting diodes (LEDs), and lasers.

In this talk, the speaker will firstly introduce the fundamental physics underlying the novel properties of nanocrystals. Then he will talk about the typical synthetic method of colloidal nanocrystals. The mechanisms of the anisotropic growth of the nanocrystals to a 1D or 2D structure will be discussed. In contrast to 0D quantum dots, the superior properties of the 2D nanosheets will be shown. The nanosheet-related topics including growth control, thickness-dependent energy gap, core/shell structure, surface passivation, and exciton binding energy will be discussed.  The preliminary results of the 2D nanosheets-based LEDs and the amplified spontaneous emission will be demonstrated.

Persons with disabilities may submit a request for accommodations to participate in this event at UT Dallas' ADA website. You may also call (972) 883-5331 for assistance or send an email to All requests should be received no later than 10 business days prior to the event.

Event Type

Lectures & Workshops

Target Audience

Undergraduate Students, Faculty & Staff, General Public, Graduate Students


Research, Science & Technology

Natural Sciences & Mathematics
Contact Information
Michael Kesden
Google Calendar iCal Outlook