Journal
NANO RESEARCH
Volume 7, Issue 10, Pages 1488-1496Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-014-0510-3
Keywords
proximity sensor; pressure sensor; mutual capacitance; silver nanowire; transparent film
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Funding
- National Natural Science Foundation of China [61204001]
- Fundamental Research Funds for the Central Universities of China [2014QN013]
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Over the past few years, the rapid development of tactile sensing technology has contributed significantly to the realization of intuitional touch control and intelligent human-machine interaction. Apart from physical touch or pressure sensing, proximity sensing as a complementary function can extend the detection mode of common single functional tactile sensors. In this work, we present a transparent, matrix-structure dual functional capacitive sensor which integrates the capability of proximity and pressure sensing in one device, and the excellent spatial resolution offered by the isolated response of capacitive pixels enables us to realize precise location identification of approaching objects and loaded pressure with fast response, high stability and high reversibility.
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