Gallium nitride and oxynitrides used as selective detectors of r

Details Gallium nitride and oxynitrides used as selective detectors of r Gallium nitride and oxynitrides used as selective detectors of r

1989-11-01

1991-01-08

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

338 34, 422 98, 436111, 436114, H01C 700, G01N 2700, G01N 2704, G01N 3300

Patent

active

049833600

ABSTRACT:
The present invention relates, a compound for use with selective detectors of the semiconductor resistance type which detect for nitrogenous reducing gases in the atmosphere, especially ammonia and gases containing NH and/or NH.sub.2 groups, said compound comprising the gallium nitride and, oxynitrides of tetrahedral structure according to the general formula: ##EQU1## in which: .quadrature. represents a hole, and 0.ltoreq.x.ltoreq.0.3.

REFERENCES:
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patent: 4197089 (1980-04-01), Willis et al.
patent: 4259292 (1981-03-01), Ichinose et al.
patent: 4509034 (1985-04-01), Sakai
patent: 4695432 (1987-09-01), Colin et al.
patent: 4885929 (1989-12-01), Kasahara et al.

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