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VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
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BEGIN:VEVENT
DTSTAMP:20261021T115516Z
LAST-MODIFIED:20140522T133012Z
DTSTART:20140520T170000Z
DTEND:20140520T180000Z
UID:event1288@bu.edu
URL:http://physics.bu.edu/internal/events/show/1288
SUMMARY:Soft X-ray Studies of Solid Oxide Fuel Cell Cathodes
DESCRIPTION:Featuring David Newby\n\nPart of the Departmental Seminars.\n\n
	Dissertation Committee: Kevin Smith\, Karl Ludwig\, Robert Carey\, Soumendr
	a Basu\, Xi Lin. \n\nThe electronic and chemical properties of heteroepitax
	ial thin films of LSCF-6428 grown on NGO have been studied using soft x-ray
	 photoelectron spectroscopy.  Specifically\, the effect of annealing the fi
	lms in low partial pressures of oxygen and argon has been investigated.   W
	e find that atmospheric surface carbon contamination of the films can be re
	moved with anneals in argon\, or incorporated in the surface with oxygen an
	neals. Regardless of the gas used\, an insulating phase transition occurs n
	ear 300°C due to strontium segregation at the surface. The surface develop
	s more insulating character if annealed with oxygen. Different species are 
	proposed to be responsible for the discrepancy in insulating character
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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