| 摘要 |
Nitrides and oxynitrides which can be used as selective detectors of reducing gases in the atmosphere, and a detection device containing them. Selective detectors of nitrogen-containing reducing gases in the atmosphere, in particular ammonia and gases containing NH and/or NH2 groups, of the semiconductor resistance type, the nitrides and oxynitrides according to the invention are of tetrahedral structure and contain: a metal chosen from the group comprising Li, Na, K, Be, Mg, Ca, Sr, Ba, Zn and Mn; a second element chosen from the group comprising Si, Ge, P, Al and Ga; nitrogen and, if appropriate, oxygen. |
