期刊
NATURE COMMUNICATIONS
卷 9, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41467-018-04906-1
关键词
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资金
- Ministry of Science and ICT
- Ministry of Trade, Industry, and Energy (MOTIE) of Korea through the National Research Foundation [2016R1A2B3013592, 2016R1A5A1009926]
- Bio & Medical Technology Development Program [2018M3A9F1021649]
- Nano Material Technology Development Program [2015M3A7B4050308, 2016M3A7B4910635]
- Convergence Technology Development Program for Bionic Arm [NRF-2017M3C1B2085316]
- Industrial Technology Innovation Program [10080577]
- Pioneer Research Center Program [NRF-2014M3C1A3001208]
- UNIST [1.170009.01]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10080577] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2016R1A5A1009926, 2014M3C1A3053029, 2015M3A7B4050306, 2014M3C1B2048177, 22A20153013017, 2015M3A7B4050308, 2016R1A2B3013592, 2018M3A9F1021649, 2016M3A7B4910635] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We developed a transparent and flexible, capacitive fingerprint sensor array with multiplexed, simultaneous detection of tactile pressure and finger skin temperature for mobile smart devices. In our approach, networks of hybrid nanostructures using ultra-long metal nanofibers and finer nanowires were formed as transparent, flexible electrodes of a multifunctional sensor array. These sensors exhibited excellent optoelectronic properties and outstanding reliability against mechanical bending. This fingerprint sensor array has a high resolution with good transparency. This sensor offers a capacitance variation similar to 17 times better than the variation for the same sensor pattern using conventional ITO electrodes. This sensor with the hybrid electrode also operates at high frequencies with negligible degradation in its performance against various noise signals from mobile devices. Furthermore, this fingerprint sensor array can be integrated with all transparent forms of tactile pressure sensors and skin temperature sensors, to enable the detection of a finger pressing on the display.
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