Characteristics of a pressure sensitive touch sensor using a piezoelectric PVDF-TrFE/MoS2 stack.

نویسندگان

  • Woojin Park
  • Jin Ho Yang
  • Chang Goo Kang
  • Young Gon Lee
  • Hyeon Jun Hwang
  • Chunhum Cho
  • Sung Kwan Lim
  • Soo Cheol Kang
  • Woong-Ki Hong
  • Sang Kyung Lee
  • Sangchul Lee
  • Byoung Hun Lee
چکیده

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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عنوان ژورنال:
  • Nanotechnology

دوره 24 47  شماره 

صفحات  -

تاریخ انتشار 2013