text-only page produced automatically by Usablenet Assistive Skip all navigation and go to page content Skip top navigation and go to directorate navigation Skip top navigation and go to page navigation
National Science Foundation
Awards
design element
Search Awards
Recent Awards
Presidential and Honorary Awards
About Awards
Grant Policy Manual
Grant General Conditions
Cooperative Agreement Conditions
Special Conditions
Federal Demonstration Partnership
Policy Office Website



Award Abstract #1254468

CAREER: Graphene Heterostructures Based Hot Carrier Optoelectronics

NSF Org: ECCS
Div Of Electrical, Commun & Cyber Sys
divider line
Initial Amendment Date: January 24, 2013
divider line
Latest Amendment Date: January 24, 2013
divider line
Award Number: 1254468
divider line
Award Instrument: Standard Grant
divider line
Program Manager: Mahmoud Fallahi
ECCS Div Of Electrical, Commun & Cyber Sys
ENG Directorate For Engineering
divider line
Start Date: March 1, 2013
divider line
End Date: February 28, 2018 (Estimated)
divider line
Awarded Amount to Date: $400,000.00
divider line
Investigator(s): Zhaohui Zhong zzhong@umich.edu (Principal Investigator)
divider line
Sponsor: University of Michigan Ann Arbor
3003 South State St. Room 1062
Ann Arbor, MI 48109-1274 (734)763-6438
divider line
NSF Program(s): ELECT, PHOTONICS, & MAG DEVICE
divider line
Program Reference Code(s): 094E, 1045, 8028
divider line
Program Element Code(s): 1517

ABSTRACT

Objective: The objective of this proposal is to study the nonequilibrium hot carrier dynamics in graphene, and to explore novel graphene heterostructure devices for hot carrier optoelectronic applications. The approach is based on the integration of scanning photocurrent technique with femtosecond time-delay measurement technique. The proposal also aims to demonstrate a new type of graphene heterostructure based ultra-broadband infrared photodetector with high responsivity.

Intellectual Merit: The intellectual merit is the pioneering of graphene based hot carrier optoelectronics. The femtosecond scanning photocurrent measurement technique can be applied to other optoelectronic devices, and the investigation of hot carrier dynamics in graphene should improve the fundamental understanding of optoelectronic physics in low dimension. The hot carrier tunneling mediated photoresponse in graphene heterostructure transistors will also lead to new photodetection mechanism ideal for mid-far infrared applications.

Broader Impacts: The proposed research is highly transformative and will generate a new type of room temperature broadband infrared detector with unparalleled sensitivity. The proposal?s strong emphasis on basic science, nanoscale material, and device physics will enhance science and engineering education at both undergraduate and graduate level. The proposed outreach activities will also promote the awareness and interest in nanoscience and nanotechnology for K-12 and undergraduate students. This program will place emphasis on recruiting students from underrepresented groups. Knowledge and technologies gain from this research will be incorporated into undergraduate course revision and the development of a new graduate course focusing on carbon nanomaterials.


PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

Note:  When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).

Some links on this page may take you to non-federal websites. Their policies may differ from this site.


Girish S. Kulkarni, Karthik Reddy, Zhaohui Zhong & Xudong Fan. "Graphene nanoelectronic heterodyne sensor
for rapid and sensitive vapour detection," Nature Communications, v.5, 2014, p. 4376.

You-Chia Chang, Chang-Hua Liu, Che-Hung Liu, Zhaohui Zhong, and Theodore B. Norris. "Extracting the complex optical conductivity of mono- and bilayer graphene by ellipsometry," Applied Physics Letters, v.104, 2014, p. 261909.

C. H. Liu, Y. C. Chang, Y. Zhang, Y. F. Zhang, T. Norris, and Z. Zhong. "Ultrafast lateral photo-Dember effect in graphene induced by nonequilibrium hot carriers dynamics," Nano Letters, v.15, 2015, p. 4234.

Seunghyun Lee and Zhaohui Zhong. "Nanoelectronic circuits based on two-dimensional atomic layer crystals," Nanoscale, v.6, 2014, p. 13283.

C. H. Liu, Y. C. Chang, T. Norris, and Z. Zhong. "Room temperature ultra-broadband and high responsivity graphene photodetectors," Nature Nanotechnology, v.9, 2014, p. 273.

 

Please report errors in award information by writing to: awardsearch@nsf.gov.

 

 

Print this page
Back to Top of page
  FUNDING   AWARDS   DISCOVERIES   NEWS   PUBLICATIONS   STATISTICS   ABOUT NSF   FASTLANE  
Research.gov  |  USA.gov  |  National Science Board  |  Recovery Act  |  Budget and Performance  |  Annual Financial Report
Web Policies and Important Links  |  Privacy  |  FOIA  |  NO FEAR Act  |  Inspector General  |  Webmaster Contact  |  Site Map
National Science Foundation Logo
The National Science Foundation, 4201 Wilson Boulevard, Arlington, Virginia 22230, USA
Tel: (703) 292-5111, FIRS: (800) 877-8339 | TDD: (800) 281-8749
  Text Only Version