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E-Skin Tactile Sensor Matrix Pixelated by Position-Registered Conductive Microparticles Creating Pressure-Sensitive Selectors

Title
E-Skin Tactile Sensor Matrix Pixelated by Position-Registered Conductive Microparticles Creating Pressure-Sensitive Selectors
Author
김진웅
Keywords
assembly; electronic skin; microparticles; sensor matrix; tactile sensors
Issue Date
2018-08
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED FUNCTIONAL MATERIALS, v. 28, no. 31, Article no. 1801858
Abstract
Electronic skin (E-skin) imitates human skin by converting external stimuli into electrical signals. E-skin requires high flexibility and a high level of device integration. Unlike conventional E-skin creation methods, a highly sensitive pressure sensor matrix (100 pixels cm(-2)) made of position-registered elastic conductive microparticles (MPs) is created. The MPs form a Schottky junction with the bottom electrode and the current through the junction is sensitive to external pressure, forming a simple one-selector two-terminal device array. The Schottky junction eliminates the electrical cross talks between the sensor pixels consisting of 64 MPs in each. The flexible pressure sensor matrix is used as an artificial fingertip for Braille reading and as an electronic scale based on detailed force distribution. This work opens up the possibility that assembled MPs, which have been a long-standing research topic in academia, can be used to make practical electronic devices.
URI
https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201801858http://repository.hanyang.ac.kr/handle/20.500.11754/119792
ISSN
1616-301X; 1616-3028
DOI
10.1002/adfm.201801858
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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