Accession Number:

ADD019894

Title:

Method for Preparing Efficient Low Voltage Phosphors and Products Produced Thereby

Descriptive Note:

Patent application, filed 17 Mar 2000

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2000-03-17

Pagination or Media Count:

24.0

Abstract:

Doped phosphors e.g., metal orthosilicates are made by adding solid particulate precursor to a solution of an alkoxide precursor and a dopant precursor before hydrolysis is allowed to occur. The mixture is then allowed to hydrolyze, resulting in a sol-gel condensation reaction. The solid particulate precursor can be fumed silica, and acts as a nucleation site for the sol-gel reaction product. After the sol-gel reaction, the mixture is dried and fired to form phosphors. The phosphors are especially suitable for applications in which there is low voltage operation.

Subject Categories:

  • Physical Chemistry
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE