Conductance-strain behavior in silver-nanowire composites: network properties of a tunable strain sensor

被引：7

作者：

Glier, Tomke E. ^{[1
]}

Betker, Marie ^{[1
]}

Grimm-Lebsanft, Benjamin ^{[1
]}

Scheitz, Sarah ^{[1
]}

Matsuyama, Toru ^{[2
]}

Akinsinde, Lewis O. ^{[1
]}

Ruebhausen, Michael ^{[1
]}

机构：

[1] Univ Hamburg, Ctr Free Electron Laser Sci CFEL, Inst Nanostruktur & Festkorperphys, Luruper Chaussee 149, D-22761 Hamburg, Germany

[2] Max Planck Inst Struktur & Dynam Mat, Luruper Chaussee 149, D-22761 Hamburg, Germany

来源：

NANOTECHNOLOGY | 2021年 / 32卷 / 36期

关键词：

silver-nanowire composite; strain sensor; strain-resistance behavior; flexible electronics; functional printing; Monte Carlo simulation; TRANSPARENT; PERCOLATION; CONDUCTIVITY; ELECTRONICS; TRANSISTORS; SKIN;

D O I：

10.1088/1361-6528/ac04a4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly flexible and conductive nano-composite materials are promising candidates for stretchable and flexible electronics. We report on the strain-resistance relation of a silver-nanowire photopolymer composite during repetitive stretching. Resistance measurements reveal a gradual change of the hysteretic resistance curves towards a linear and non-hysteretic behavior. Furthermore, a decrease in resistance and an increase in electrical sensitivity to strain over the first five stretching cycles can be observed. Sensitivity gauge factors between 10 and 500 at 23% strain were found depending on the nanowire concentration and stretching cycle. We model the electrical behavior of the investigated silver nanowire composites upon repetitive stretching considering the strain induced changes in the local force distribution within the polymer matrix and the tunnel resistance between the nanowires by using a Monte Carlo method.

引用

页数：8

共 49 条

[1] Piezoresistive Strain Sensors Made from Carbon Nanotubes Based Polymer Nanocomposites [J].