USA flag logo/image

An Official Website of the United States Government

POROUS POLYSILICON LIGHT EMITTERS FOR MONOLITHICALLY-INTEGRATED THIN FILM…

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
27495
Program Year/Program:
1997 / SBIR
Agency Tracking Number:
27495
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: 1997
Title: POROUS POLYSILICON LIGHT EMITTERS FOR MONOLITHICALLY-INTEGRATED THIN FILM ELECTROLUMINESCENT (FTEL) DISPLAY PANELS
Agency: NSF
Contract: N/A
Award Amount: $295,500.00
 

Abstract:

RESEARCHERS ARE INVESTIGATING DEMONSTRATION OF VISIBLE ELECTRO-LUMINESCENT (EL) DEVICES FABRICATED ON POROUS POLYSILICON THIN FILM ON GLASS SUBSTRATES FOR LOW-COST, MONOLITHICALLY-INTEGRATED, ALL-SILICON FLAT-PANEL DISPLAYS. RESEARCHERS RECENTLY FABRICATED THE FIRST SI-BASED LIGHT-EMITTING DIODES CONFIGURED AS HETEROJUNCTIONS BETWEEN A P-TYPE POROUS SI AND AN N-TYPE TRANSPARENT SEMICONDUCTOR (INDIUM-TIN-OXIDE). QUANTUM CONFINEMENT IN SI NANOSTRUCTURES IS THE KEY TO THE LUMINESCENCE OF THESE DEVICES. THESE LEDS ARE CAPABLE OF EMITTING YELLOW, ORANGE, AND RED LIGHT, AND THE FABRICATION OF A POROUS SI-BASED BLUE LED IS UNDERWAY. ALTHOUGH MOST PREVIOUS WORK ON POROUS SILICON DEVICES HAS EMPLOYED BULK SI MATERIALS RATHER THAN SI THIN FILMS, RECENT WORK HAS SHOWN THAT BRIGHT VISIBLE LIGHT CAN ALSO BE OBTAINED FROM POROUS STRUCTURES FORMED ON POLYCRYSTALLINE SILICON THIN FILMS DEPOSITED ON GLASS SUBSTRATES. THIS DEVELOPMENT MAY ENABLE THE CREATION OF A NOVEL THIN FILM ELECTROLUMINESCENT (TFEL) TECHNOLOGY BASED ON POROUS POLYSILICON FILMS. SUCH A TECHNOLOGY WOULD BE NOT ONLY MORE ECONOMICAL AND PRACTICAL THAN CONVENTIONAL PRACTICE, BUT COULD ALSO OFFER THE MONOLITHIC INTEGRATION OF DISPLAY ELEMENTS WITH THIN FILM TRANSISTOR (TFT) CHIP-ON-GLASS DRIVER CIRCUITRY ON A SINGLE POLYCRYSTALLINE SI LAYER.

Principal Investigator:

Nader M Kalkhoran
6172756000

Business Contact:

Small Business Information at Submission:

Spire Corp.
1 Patriots Pk Bedford, MA 01730

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