A novel SnO2 gas sensor doped with carbon nanotubes operating at room temperature

By B. Wei, M. Hsu, P. Su, Hong‐Ming Lin, R. Wu, H. Lai. 2004

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First Fifty Years of Chemoresistive Gas Sensors (2015, background): “Their role in the sensing mechanism has been established by several authors [67,68].”
Synthesis, characterization and gas sensing performance of SnO2 thin films prepared by spray pyrolysis (2011, background): “…SnO2 films to H2S with operating temperature: The preparation of SnO2 gas sensors usually involves annealing at a high temperature of 550–950◦C (Nayral et al 2000; Safonova et al 2000; Teeramongkonrasmee and Sriyudthsak 2000; Saha et al 2001; Ivanoc et al 2004; Kotsikau et al 2004; Wei et al 2004).”
Highly sensitive thin film NH3 gas sensor operating at room temperature based on SnO2/MWCNTs composite (2008, neutral): “[22].”
ZnO decorated luminescent graphene as a potential gas sensor at room temperature (2012, background): “The interaction between GrO and ZnO, in single step reduction process, could be modeled on charge transfer dynamics as in SnO2–CNT or ZnO–SWCNT composites [15].”
Semiconductor Gas Sensors: Materials, Technology, Design, and Application (2020, background): “Nanocomposites of multi or single walled carbon nanotubes with SnO2 achieved room temperature detection of NO2 [30,83].”