期刊
NANOTECHNOLOGY
卷 31, 期 35, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab932c
关键词
sepiolite nanofibers; humidity sensors; large response; good linearity; low cost
资金
- National Science Funds for Excellent Young Scholars of China [61822106]
- National Science Funds for Creative Research Groups of China [61421002]
- Natural Science Foundation of China [61671115]
Much effort has focussed on enhancing the humidity-sensing performances of humidity sensors, but their fabrication using facile and low-cost methods is also desirable. In this work, a humidity sensor based on a naturally available nanomaterial, sepiolite nanofibers (SNFs), was facilely fabricated without any expensive raw materials or complex processes. Characterization results show that SNFs have a natural slender nanofiber structure (diameter 20-50 nm) and abundant hydrophilic functional groups (-OH). The results of humidity-sensing tests show that the SNF humidity sensor has outstanding humidity-sensing properties (i.e. large response, good linearity and repeatability) within the relative humidity range from 10.9% to 91.5% at room temperature (25 degrees C). This work presents a moderate and cost-effective strategy for the fabrication of high-performance humidity sensors using the natural SNF nanomaterial.
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