期刊
JOURNAL OF MATERIALS RESEARCH
卷 30, 期 23, 页码 3584-3594出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1557/jmr.2015.334
关键词
-
资金
- Stanford Undergraduate Advising and Research (UAR)
- Barry Goldwater Scholarship and Excellence in Education Foundation
Flexible touch sensors with high sensitivity show promise in biomedical diagnostics and for artificial electronic skin for robotics or prosthetic devices. For electronic skin applications, there exists a need for low-cost, scalable methods for producing pixels that sense both medium (10-100 kPa) and low pressures (<10 kPa). Here, the breath figures (BFs) method, a simple, self-assembly-based method for producing honeycomb-structured porous polymer films, was used to prepare pattern compressible, and microstructured dielectric layers for capacitive pressure sensors. Porous polystyrene BFs films served as molds for structuring polydimethylsiloxane dielectrics. Pressure sensing devices containing the BFs-molded dielectrics consistently gave pressure response with little hysteresis, high sensitivities at lower applied pressures, and improved sensitivity at higher pressures. Analysis of microstructure geometries and pressure sensor performance suggests that structures with higher aspect ratios (height-to-width) produce less hysteresis, and that less uniform, more polydisperse structures yield a more linear pressure response.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据