Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Method of making compound semiconductor films and making related electronic devices

Patent ·
OSTI ID:872671
 [1];  [2];  [3];  [4];  [5]
  1. Manhattan Beach, CA
  2. Tarzana, CA
  3. Northridge, CA
  4. Woodland Hills, CA
  5. Glendale, CA
A method of forming a compound film includes the steps of preparing a source material, depositing the source material on a base to form a precursor film, and heating the precursor film in a suitable atmosphere to form a film. The source material includes Group IB-IIIA alloy-containing particles having at least one Group IB-IIIA alloy phase, with Group IB-IIIA alloys constituting greater than about 50 molar percent of the Group IB elements and greater than about 50 molar percent of the Group IIIA elements in the source material. The film, then, includes a Group IB-IIIA-VIA compound. The molar ratio of Group IB to Group IIIA elements in the source material may be greater than about 0.80 and less than about 1.0, or substantially greater than 1.0, in which case this ratio in the compound film may be reduced to greater than about 0.80 and less than about 1.0. The source material may be prepared as an ink from particles in powder form. The alloy phase may include a dopant. Compound films including a Group IIB-IVA-VA compound or a Group IB-VA-VIA compound may be substituted using appropriate substitutions in the method. The method, also, is applicable to fabrication of solar cells and other electronic devices.
Research Organization:
International Solar Electric Technology, Inc. (Inglewood, CA)
DOE Contract Number:
FG03-96ER82191
Assignee:
International Solar Electric Technology, Inc. (Inglewood, CA)
Patent Number(s):
US 5985691
OSTI ID:
872671
Country of Publication:
United States
Language:
English

References (7)

Thin-film solar cells journal January 1995
CuInSe/sub 2/ thin film solar cells by pulsed laser deposition conference January 1993
Flexible and light weight copper indium diselenide solar cells on polyimide substrates journal August 1996
CuInSe/sub 2/ films prepared by screen-printing and sintering method conference January 1988
Screen Printing of CIS Films for CIS-CdS Solar Cells book January 1991
Studies on CuIn precursor for the preparation of CuInSe2 thin films by the selenization technique journal February 1994
Characterization of co-sputtered Cu-In alloy precursors for CuInSe2 thin films fabrication by close-spaced selenization journal August 1998