Transparent elongation and compressive strain sensors based on aligned carbon nanowalls embedded in polyurethane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F20%3A00523738" target="_blank" >RIV/67985874:_____/20:00523738 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28110/20:63526463 RIV/70883521:28610/20:63526463

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0924424720301126?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0924424720301126?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sna.2020.111946" target="_blank" >10.1016/j.sna.2020.111946</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Transparent elongation and compressive strain sensors based on aligned carbon nanowalls embedded in polyurethane

Popis výsledku v původním jazyce

Highly extensible transparent composite materials comprised of maze-like vertically aligned carbonnanowalls embedded perpendicularly into a polyurethane film were used as strain tensors and testedby an electrical resistance method in the course of extension, extension/relaxation and compres-sion/expansion cycles. The maze-like carbon nanowall networks with wall-to-wall average distancesof 100, 200 and 300 nm were formed on SiO2-coated Si substrates by a plasma-enhanced chemical vapordeposition system. Afterwards, the nanowall network was embedded into a stretchable polyurethanematrix which enabled a high deformation of the composite. The measured extensibility of the compos-ite was over 440 %, and its resistance increased with the extension. The sensitivity of the detection ofextension, which was evaluated by the gauge factor, increased over 2000. These sensor properties can bereadily tuned by varying distances of nanowalls within the network. Finally, thanks to their optical trans-parency in the visible light region and thermoelectric properties, these composites offer a wide range offurther practical applications.

Název v anglickém jazyce

Transparent elongation and compressive strain sensors based on aligned carbon nanowalls embedded in polyurethane

Popis výsledku anglicky

Highly extensible transparent composite materials comprised of maze-like vertically aligned carbonnanowalls embedded perpendicularly into a polyurethane film were used as strain tensors and testedby an electrical resistance method in the course of extension, extension/relaxation and compres-sion/expansion cycles. The maze-like carbon nanowall networks with wall-to-wall average distancesof 100, 200 and 300 nm were formed on SiO2-coated Si substrates by a plasma-enhanced chemical vapordeposition system. Afterwards, the nanowall network was embedded into a stretchable polyurethanematrix which enabled a high deformation of the composite. The measured extensibility of the compos-ite was over 440 %, and its resistance increased with the extension. The sensitivity of the detection ofextension, which was evaluated by the gauge factor, increased over 2000. These sensor properties can bereadily tuned by varying distances of nanowalls within the network. Finally, thanks to their optical trans-parency in the visible light region and thermoelectric properties, these composites offer a wide range offurther practical applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Sensors and Actuators A - Physical

ISSN

0924-4247

e-ISSN

—

Svazek periodika

306

Číslo periodika v rámci svazku

1 May

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

111946

Kód UT WoS článku

000534580000021

EID výsledku v databázi Scopus

2-s2.0-85082394504