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- W2073486357 abstract "ZnO nanoparticles (NPs) of 5–15 nm size and nanowires (NWs) of 50–100 nm dia., exhibiting p and n-type characteristics, respectively, have been synthesized using simple chemical process. ZnO NW-films exhibited good sensitivity and selectivity towards H2S in ppm range with fast response and recovery times. Interestingly, ZnO NP-films showed p-type conductivity that has been obtained for the first time without intentional doping while NW-films showed n-type conduction as has also been reported in various earlier studies. The p- and n-type conductivities in NP- and NW-films have been confirmed using hot probe and Kelvin probe measurements. The n-type behavior of NW-films is attributed to oxygen vacancies, whereas the p-type nature of NP-films is attributed to the zinc vacancy, surface acceptor levels created by the adsorbed oxygen and/or the unintentional carbon doping in ZnO." @default.
- W2073486357 created "2016-06-24" @default.
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- W2073486357 date "2011-08-01" @default.
- W2073486357 modified "2023-10-04" @default.
- W2073486357 title "Growth and gas sensing characteristics of p- and n-type ZnO nanostructures" @default.
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- W2073486357 doi "https://doi.org/10.1016/j.snb.2011.02.058" @default.
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