NSF Org:	CBET Division of Chemical, Bioengineering, Environmental, and Transport Systems
Recipient:	UNIVERSITY OF CALIFORNIA, SANTA BARBARA
Initial Amendment Date:	August 31, 1992
Latest Amendment Date:	January 8, 1997
Award Number:	9257536
Award Instrument:	Continuing Grant
Program Manager:	Timothy Tong CBET  Division of Chemical, Bioengineering, Environmental, and Transport Systems ENG  Directorate for Engineering
Start Date:	October 1, 1992
End Date:	September 30, 1997 (Estimated)
Total Intended Award Amount:	$212,500.00
Total Awarded Amount to Date:	$275,000.00
Funds Obligated to Date:	FY 1992 = $25,000.00 FY 1993 = $62,500.00 FY 1994 = $62,500.00 FY 1996 = $59,300.00 FY 1997 = $0.00
History of Investigator:	Arunava Majumdar (Principal Investigator) majumdar@me.berkeley.edu
Recipient Sponsored Research Office:	University of California-Santa Barbara 3227 CHEADLE HALL SANTA BARBARA CA  US  93106-0001 (805)893-4188
Sponsor Congressional District:	24
Primary Place of Performance:	University of California-Santa Barbara 3227 CHEADLE HALL SANTA BARBARA CA  US  93106-0001
Primary Place of Performance Congressional District:	24
Unique Entity Identifier (UEI):	G9QBQDH39DF4
Parent UEI:
NSF Program(s):	TTP-Thermal Transport Process
Primary Program Source:	app-0193  app-0194  app-0196  app-0197
Program Reference Code(s):	0000, 9297, OTHR
Program Element Code(s):	140600
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.041

ABSTRACT

A balanced experimental and theoretical research program in the area of nanometer-scale thermal engineering in electronic materials is planned. Research will be focused on (1) thermal properties, heat generation and transport in sub-micrometer-scale structures; (measurement of temperature and thermal properties at nanometer scales; (3) heat transfer across interfaces. These studies will be carried out on electronic and opto-electronic materials such as silicon, III-V semiconductors like gallium arsenide and its alloys, as well as metals. Typical applications involve high electric fields, leading to non-equilibrium electron energy distributions. Electron-phonon interactions further lead to non-equilibrium phonon interactions. Theoretical/numerical studies will involve the development of Monte Carlo simulation packages for transport of non-equilibrium electrons and phonons. Experimental studies will involve measurements made with the scanning tunneling microscope (STM) and the atomic force microscope (AFM). A technique to use AFM to measure effective lattice and electron temperatures with nanometer resolution will be developed. Studies of the thermoelectric effect associated with heat transport by electron tunneling will also be studied. The studies are of fundamental importance to nanoengineering and may also have applications in the development of nanometer-scale tunneling sensors for temperature and heat flux.

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