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Two forms of tin oxide (SnO2) nanoparticles (NPs) with different morphologies (small dispersed NPs and big clusters aggregated from small NPs) were synthesized via chemical solution methods and assembled into films on Si/SiO2 substrate for a comparative sensing study, which were tested for the responses to H2 S reducing gas and NO2 oxidizing gas, respectively. Similar detection limits to part per...
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