Sensitivity improvement of graphene/Al2O3/PVDF–TrFE stacked touch device through Al seed assisted dielectric scaling
作者： J.H. Yang , H.J. Hwang , S.C. Kang , B.H. Lee
DOI: 10.1016/J.MEE.2015.04.039
关键词: Coupling 、 Stack (abstract data type) 、 Deposition (law) 、 Scaling 、 Graphene 、 Dielectric 、 Optoelectronics 、 Piezoelectricity 、 Sensitivity (control systems) 、 Materials science 、 Nanotechnology
摘要: Display Omitted The sensitivity of graphene based touch sensor has been improved by Al2O3 scaling.Al assisted deposition is an easy way to get smooth and thin dielectric.The piezoelectric induced charges were increased enhancing the charge coupling.7 times higher could be achieved. using polymer/graphene stack drastically scaling thickness dielectric on graphene. effect in channel from 0.6195 4.314µC/cm2 at 1kg press weight, which coupling between PVDF-TrFE through 30nm 5nm.
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