NSF Org:	DMR Division Of Materials Research
Recipient:	UNIVERSITY OF CALIFORNIA, SAN DIEGO
Initial Amendment Date:	April 19, 1999
Latest Amendment Date:	July 18, 2001
Award Number:	9900034
Award Instrument:	Continuing Grant
Program Manager:	David L. Nelson DMR  Division Of Materials Research MPS  Directorate for Mathematical and Physical Sciences
Start Date:	May 1, 1999
End Date:	April 30, 2003 (Estimated)
Total Intended Award Amount:	$240,000.00
Total Awarded Amount to Date:	$240,000.00
Funds Obligated to Date:	FY 1999 = $90,000.00 FY 2000 = $75,000.00 FY 2001 = $75,000.00
History of Investigator:	Michael Sailor (Principal Investigator) msailor@ucsd.edu
Recipient Sponsored Research Office:	University of California-San Diego 9500 GILMAN DR LA JOLLA CA  US  92093-0021 (858)534-4896
Sponsor Congressional District:	50
Primary Place of Performance:	University of California-San Diego 9500 GILMAN DR LA JOLLA CA  US  92093-0021
Primary Place of Performance Congressional District:	50
Unique Entity Identifier (UEI):	UYTTZT6G9DT1
Parent UEI:
NSF Program(s):	SOLID STATE & MATERIALS CHEMIS
Primary Program Source:	app-0100  01000102DB NSF RESEARCH & RELATED ACTIVIT app-0199
Program Reference Code(s):	AMPP, 9161
Program Element Code(s):	176200
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.049

ABSTRACT

9900034
Sailor
This proposal is aimed at exploring the synthesis, chemistry and photophysics of a new class of silicate phosphor materials. The phosphors are unique in that no activator metals are needed to obtain efficient photoluminescence. Such materials may provide an alternative to existing phosphors that contain toxic heavy metal ions and as such pose a significant environmental hazard. The luminescent silicates that will be studied fall into two distinct classes depending on the alkoxysilane used in the synthesis. The first class are 'carboxysilicate' glasses that are stable at high temperatures. The second class are water-soluble 'aminosilicone' polymers that can be processed into a variety of shapes such as blocks, foams, and fibers. Both classes have high luminescence efficiency. These materials represent a new direction in silicon sol-gel chemistry and the aim of this proposal is to determine the structure, chemistry, and photophysics of the chromophore in these materials.
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The discovery of efficient, environmentally benign phosphors for lighting, display, and specialty applications and the development of methods to synthesize polymeric silicones with interesting optical or electronic properties are of significant industrial interest as potential technologies.

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