Porous pure SnO nanofibers (NFs) and LaO nanoparticles (NPs)-embedded porous SnO NFs were successfully synthesized via electrospinning followed by calcination. These materials were systematically evaluated as gas-sensing elements in metal-oxide-semiconductor (MOS) sensors. The LaO NPs embedded in porous SnO NFs demonstrated superior gas-sensing performance compared to pure SnO NFs. Specifically, the incorporation of LaO resulted in a 12-fold enhancement in gas-sensing response towards ethanol, significantly improving both sensitivity and selectivity by tuning the carrier concentration and modifying oxygen deficiencies and chemisorbed oxygen levels. Thus, LaO NPs embedded in SnO NFs present a promising strategy for the development of high-performance ethanol gas sensors.
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| http://dx.doi.org/10.3390/s24216839 | DOI Listing |
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