公开(公告)号：US11933752B2

公开(公告)日：2024-03-19

申请号：US16520219

申请日：2019-07-23

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Satoru Fujii ,  Zhiqiang Wei ,  Kazunari Homma ,  Shinichi Yoneda ,  Yasuhisa Naito ,  Hisashi Shima ,  Hiroyuki Akinaga

IPC分类号： G01N27/12 ,  G01N27/414 ,  G01N33/00 ,  H01M8/04

CPC分类号： G01N27/125 ,  G01N27/4141 ,  G01N33/005 ,  H01M8/04

摘要： A gas sensor includes: a gas-sensitive body layer disposed above a substrate and including a metal oxide layer; a first electrode on the gas-sensitive body layer; and a second electrode on the gas-sensitive body layer, being apart from the first electrode by a gap. The gas-sensitive body layer has a resistance change characteristic that reversibly transitions to a high-resistance state and a low-resistance state on basis of a voltage applied across the first electrode and the second electrode. At least a part of the gas-sensitive body layer is exposed to the gap. The gas-sensitive body layer has a resistance that decreases when gas containing a hydrogen atom is in contact with the second electrode.