期刊
NANOTECHNOLOGY
卷 24, 期 47, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/24/47/475501
关键词
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资金
- Inter-ER Cooperation Projects
- MOTIE
- KIAT
- Pioneer Research Center Program through the NRF of Korea
- MOSIP [2012-0009460]
A new touch sensor device has been demonstrated with molybdenum disulfide (MoS2) field effect transistors stacked with a piezoelectric polymer, polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE). The performance of two device stack structures, metal/PVDF-TrFE/MoS2 (MPM) and metal/PVDF-TrFE/Al2O3/MoS2 (MPAM), were compared as a function of the thickness of PVDF-TrFE and Al2O3. The sensitivity of the touch sensor has been improved by two orders of magnitude by reducing the charge scattering and enhancing the passivation effects using a thin Al2O3 interfacial layer. Reliable switching behavior has been demonstrated up to 120 touch press cycles.
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