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1. (WO2019063493) GAS SENSOR FOR DETECTING A TARGET GAS IN AN ENVIRONMENT
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/063493 International Application No.: PCT/EP2018/075830
Publication Date: 04.04.2019 International Filing Date: 24.09.2018
IPC:
G01N 27/414 (2006.01) ,G01N 33/00 (2006.01) ,G01N 33/02 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27
Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26
by investigating electrochemical variables; by using electrolysis or electrophoresis
403
Cells and electrode assemblies
414
Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
02
Food
Applicants:
CAMBRIDGE DISPLAY TECHNOLOGY LIMITED [GB/GB]; Unit 12 Cardinal Park Cardinal Way, Godmanchester Godmanchester Cambridgeshire PE29 2XG, GB (MG)
SUMITOMO CHEMICAL COMPANY LIMITED [JP/JP]; Floor 18, Sumitomo Twin Buildings 27-1 Shinkawa 2-chome, Chuo-ku Tokyo, Tokyo 104-8260, JP
Inventors:
DARTNELL, Nicholas; GB
GODDARD, Simon; GB
NEWSOME, Christopher; GB
TOBJORK, Daniel; GB
YAACOBI-GROSS, Nir; GB
Agent:
GAHLINGS, Steven; GB
Priority Data:
1715847.829.09.2017GB
1719329.321.11.2017GB
Title (EN) GAS SENSOR FOR DETECTING A TARGET GAS IN AN ENVIRONMENT
(FR) CAPTEUR DE GAZ PERMETTANT DE DÉTECTER UN GAZ CIBLE DANS UN ENVIRONNEMENT
Abstract:
(EN) A gas sensor system is made up of a first gas sensor that is sensitive to both a target gas (200) and a secondary gas and a second sensor (300) that is only sensitive to the target gas. The response of the two gas sensors is processed to detect a presence of or a concentration of the target gas. The first sensor includes a semiconductor material that is sensitive to the presence of both the target and the secondary gas and electrodes that are sensitive to the presence of the target gas. The second sensor includes a semiconductor material that is sensitive to the presence of both the target and the secondary gas, but also includes a blocking layer on a surface of at least one of the electrodes that prevents the second gas interacting with the electrodes.
(FR) La présente invention concerne un système de capteur de gaz qui est composé d'un premier capteur de gaz qui est sensible à la fois à un gaz cible (200) et à un gaz secondaire, et d'un second capteur (300) qui est uniquement sensible au gaz cible. La réponse des deux capteurs de gaz est traitée pour détecter une présence ou une concentration du gaz cible. Le premier capteur comprend un matériau semi-conducteur qui est sensible à la présence à la fois du gaz cible et du gaz secondaire, et des électrodes qui sont sensibles à la présence du gaz cible. Le second capteur comprend un matériau semi-conducteur qui est sensible à la présence à la fois du gaz cible et du gaz secondaire, mais comprend également une couche de blocage sur une surface d'au moins l'une des électrodes qui empêche le second gaz d'interagir avec les électrodes.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)