期刊
NPJ FLEXIBLE ELECTRONICS
卷 6, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41528-022-00136-0
关键词
-
资金
- Fonds der Chemischen Industrie
- Max Planck Society
- DFG [INST 221/131-1, DFG INST 221/93-1, DFG INST 221/126-1]
This study describes the mechanical properties of turbostratically graphitized carbon films obtained by carbon laser-patterning, and explores their potential application as bending or mechanical pressure sensors.
We describe the mechanical properties of turbostratically graphitized carbon films obtained by carbon laser-patterning (CLaP) and their application as bending or mechanical pressure sensors. Stable conductive carbonized films were imprinted on a flexible polyethylene terephthalate (PET) substrate by laser-induced carbonization. After initial gentle bending, i.e. training, these sponge-like porous films show a quantitative and reversible change in resistance upon bending or application of pressure in normal loading direction. Maximum response values of Delta R/R-0 = 388% upon positive bending (tensile stress) and -22.9% upon negative bending (compression) are implicit for their high sensitivity towards mechanical deformation. Normal mechanical loading in a range between 0 and 500 kPa causes a response between Delta R/R-0 = 0 and -15%. The reversible increase or decrease in resistance is attributed to compression or tension of the turbostratically graphitized domains, respectively. This mechanism is supported by a detailed microstructural and chemical high-resolution transmission electron microscopic analysis of the cross-section of the laser-patterned carbon.
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