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Ag/PEPC/NiPc/ZnO/Ag thin film capacitive and resistive humidity sensors |
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| Authors: | Kh S Karimov Kuan Yew Cheong M Saleem Imran Murtaz M Farooq and Ahmad Fauzi Mohd Noor |
| Affiliation: | GIK Institute of Engineering Sciences and Technology, Topi, District Swabi, NWFP 23640, Pakistan; Physical Technical Institute of Academy of Sciences, Rudaki Ave 33, Dushanbe, 734025, Tajikistan;School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia;GIK Institute of Engineering Sciences and Technology, Topi, District Swabi, NWFP 23640, Pakistan;GIK Institute of Engineering Sciences and Technology, Topi, District Swabi, NWFP 23640, Pakistan;GIK Institute of Engineering Sciences and Technology, Topi, District Swabi, NWFP 23640, Pakistan;School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia |
| Abstract: | A thin film of blended poly-N-epoxypropylcarbazole(PEPC)(25 wt.%),nickel phthalocyanine(NiPc)(50 wt.%) and ZnO nano-powder(25 wt.%) in benzene(5 wt.%) was spin-coated on a glass substrate with silver electrodes to produce a surface-type Ag/PEPC/NiPc/ZnO/Ag capacitive and resistive sensor.Sensors with two different PEPC/NiPc/ZnO film thicknesses(330 and 400 nm) were fabricated and compared.The effects of humidity on capacitance and resistance of the Ag/PEPC/NiPc/ZnO/Ag sensors were investigated at two freque... |
| Keywords: | organic semiconductor poly-N-epoxypropylcarbazole nickel phthalocyanine nano-powder ZnO sensor |
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