2차원 나노구조 SnS2를 이용한 고성능 , 고감도 NO2 가스 센서 개발

초록

The major emission emission sources sources of NO 2are arediesel diesel vehiclevehicle vehicleand powerpower power plant plant.NO 2gasgas has hasphotochemical photochemicalphotochemical photochemical photochemical ozoneozoneozone creation creationcreationcreation creation potentials(POCP) potentials(POCP) potentials(POCP) potentials(POCP) andandandthen leading to the formationformation formation formation of secondary secondary secondaryorganic organicorganic aerosol(SOA) aerosol(SOA) aerosol(SOA) . ? In order order to constructconstruct construct ubiquitous ubiquitous ubiquitous environmental environmental environmental environmentalenvironmental monitoring monitoring systemsystemsystemsystemsystem based on Internet InternetInternet InternetInternetof Things(IOTs), Things(IOTs), Things(IOTs),Things(IOTs), it is important important importantto detect detectdetectdetect NO 2gasgas at low lowconcentrationconcentration concentration concentrationconcentration concentration with withhigh sensitivity sensitivity sensitivityand fastfast fastresponseresponse response. ? The new newtwo twodimensions dimensions dimensions (2D) materials materialsmaterials materialsproved proved proved advantages advantagesadvantagesadvantagesadvantages advantages forfor ultrafastultrafast ultrafastultrafastultrafastultrafast ultrafastsensing sensing due to planar crystallite crystallitecrystallitecrystallitecrystallite crystallitecrystallitestructure,structure, structure, structure, large largelargesurface surface -to -volumevolume ratioratioratio ratioand low lowelectronic electronic noise . ? Tin disulfide(SnSdisulfide(SnS disulfide(SnSdisulfide(SnS 2)provided provided provided asuperior sensing sensing performance performance as ultra ultra-sensitivity sensitivity sensitivitysensitivity sensitivitydown down to ppm level, level,level, ultra ultraultra-fastfast fastand goodgood stabilitystabilitystability stability stabilityforfor NO 2detection detectiondetection .