The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2010
Filed:
Dec. 22, 2006
Il-doo Kim, Seoul, KR;
Jae-min Hong, Seoul, KR;
Dong-young Kim, Seoul, KR;
Seong-mu JO, Seoul, KR;
Avner Rothschild, Haifa, IL;
Harry L. Tuller, Wellesley, MA (US);
Il-Doo Kim, Seoul, KR;
Jae-Min Hong, Seoul, KR;
Dong-Young Kim, Seoul, KR;
Seong-Mu Jo, Seoul, KR;
Avner Rothschild, Haifa, IL;
Harry L. Tuller, Wellesley, MA (US);
Abstract
A method for fabricating an ultra-sensitive metal oxide gas sensor is disclosed, which comprises the steps of spinning a mixture solution including a metal oxide precursor and a polymer onto a sensor electrode to form a metal oxide precursor-polymer composite fiber; thermally compressing or thermally pressurizing the composite fiber; and thermally treating the thermally compressed or thermally pressurized composite fiber to remove the polymer from the composite fiber. Since the gas sensor includes a macro pore between nanofibers and a meso pore between nano-rods and/or nano-grains, gas diffusion and surface area can be maximized. Also, the ultra-sensitive sensor having high stability in view of mechanical, thermal, and electrical aspects can be obtained through rapid increase of adhesion between the metal oxide thin layer and the sensor electrode.