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BLUE PHOSPHORS FOR FULL-COLOR HIGH-DEFINITION VIDEO DISPLAY

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
11863
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
11863
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Spire Corporation
One Patriots Park Bedford, MA 01730-2396
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1992
Title: BLUE PHOSPHORS FOR FULL-COLOR HIGH-DEFINITION VIDEO DISPLAY
Agency: NSF
Contract: N/A
Award Amount: $249,988.00
 

Abstract:

THIN-FILM ELECTROLUMINESCENT TECHNOLOGY NOW PRODUCES MATRIX-ADDRESSED SELF-LUMINOUS FLAT PANELS WHICH COME VERY CLOSE TO PROVIDING THE CAPABILITY FOR HIGH-DEFINITION COLOR TELEVISION. THE PRINCIPAL OBSTACLE TO ADVANCING THIS TECHNOLOGY TO FULL-COLOR VIDEO IMAGING IS THE NEED FOR A HIGH-BRIGHTNESS, SATURATED-BLUE PHOSPHOR. THE MOST PROMISING AVAILABLE CANDIDATE IS ZNS:TM, WHICH HAS EXCELLENTCHROMATICITY BUT LUMINANCE THAT IS TOO LOW BY 1-2 ORDERS OF MAGNITUDE. ITS WEAK EMISSION IS INCONSISTENT WITH ITS INTENSE BLUE CATHODOLUMINESCENCE AND PHOTOLUMINESCENCE AND IS DUE, MOST LIKELY, TO DEFECTS. WE PROPOSE TO MAXIMIZE THELUMINANCE OF ZNS:TM-TYPE PHOSPHORS AS A FUNCTION OF FILM STRUCTURE; OPTIMAL CHARGE COMPENSATION BY SPECIFIC ANIONS AND CO-ACTIVATION BY OTHER LANTHANIDES WILL ALSO BE ASSESSED. THIN PHOSPHOR FILMS WILL BE GROWN BY CONVENTIONALMETALORGANIC CHEMICAL VAPOR DEPOSITION AFTER A 10-30 NM SEEDLAYER IS FORMED BY ATOMIC LAYER EPITAXY IN THE SAME LARGE-AREA REACTOR. THE RESULTANT ESTABLISHMENT OF A UNIFORM LARGE-DIAMETER COLUMNAR GRAIN STRUCTURE IS EXPECTED TO GREATLY INCREASE ELECTROLUMINANCE. FURTHER, THIS DEPOSITION PROCESS IS CAPABLE OF LAYING DOWN ALL OF THE PRIMARY ZNS-HOST PHOSPHORS FOR FULL-COLOR DISPLAY IN A SINGLE CHAMBER, IT IS AMENABLE TO LOWER-COST NON-PHOTOLITHOGRAPHIC PIXEL DEFINITION, AND IT IS INHERENTLYSCALABLE.

Principal Investigator:

Nasser Karam
Senior Staff Scientist
0

Business Contact:

Small Business Information at Submission:

Spire Corp.
Patriots Park Bedford, MA 01730

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No