Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 33, Pages 13655-13660Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta01926a
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Metal oxide chemiresistors (MOCs) with a low optimal operating temperature, high sensitivity and fast response/recovery are highly promising for various applications, but remain challenging to realize. Herein, we demonstrate that SnO2 nanofibers after being co-doped with Cu2+ and Au show considerably enhanced sensing performances at an unexpectedly decreased operating temperature. A synergistic effect occurs when the two dopants are introduced together. Co-doping may form a novel strategy to the development of ultrasensitive MOCs working at a low optimal temperature.
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