Accession Number:

ADA282946

Title:

International Collaboration Program in Innovative Chemical Processing of Superior Electronic and Optical Materials

Descriptive Note:

Annual rept. 15 May 1992-14 May 1993

Corporate Author:

CALIFORNIA UNIV LOS ANGELES DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

Report Date:

1993-06-01

Pagination or Media Count:

18.0

Abstract:

Cadmium sulfide quantum dot materials are promising candidates for many nonlinear optical applications, because of their high third-order nonlinear susceptibilities. The UCLA teams has been collaborating with the University of Arizona and the Tokyo Institute of Technology in the fabrication and testing of such materials. Two processing techniques were used. The first one involved the preparation of a sodium borosilicate gel containing Cd salts. The gel was converted to dense glass at 550 degree and the Cd salt to CdS. The second one involved the use of Ormosil organically modified silicate as the matrix containing CdS microcrystals. A new method was developed to anchor the Cd salts onto the gel matrix so that subsequently, the CdS distribution in the matrix became highly uniform. Samples containing in excess of 10 wt. of CdS were prepared with X3 values up to 10-8 e.s.u. with practically no photodarkening effects. The sodium borosilicate glass samples were fabricated into channel waveguides by sodium to potassium ion-exchange

Subject Categories:

  • Industrial Chemistry and Chemical Processing
  • Inorganic Chemistry
  • Laminates and Composite Materials
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE