Highly sensitive tactile sensors integrated with organic transistors

被引：83

作者：

Kim, Jiseok ^{[1
]}

Ng, Tse Nga ^{[2
]}

Kim, Woo Soo ^{[1
]}

机构：

[1] Simon Fraser Univ, Funct Mat Engn Lab, Surrey, BC V3T 0A3, Canada

[2] Xerox Corp, Palo Alto Res Ctr, Palo Alto, CA 94304 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ARTIFICIAL SKIN; BREATH FIGURES; FABRICATION; PRESSURE; SURFACES; TOUCH;

D O I：

10.1063/1.4751354

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper presents a highly sensitive capacitive pressure sensor composed of a polymer dielectric film with a nano-needle structure. The nano-needle polymer films were prepared by facile fabrication methods including breath figures formation followed by stamping. The pressure sensitivity of the sensor reached 1.76 kPa(-1) in the low pressure range (<1 kPa), which is comparable to the sensitivity of human skin. Analysis of the geometries and densities effect was shown, and the nano-needle film showed better sensitivity in comparison to films with hemispherical or conical structures. The pressure sensors were integrated with printed organic thin film transistors to enable flexible, large-area tactile sensing applications. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4751354]

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页数：5

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