Highly Sensitive, Transparent, and Durable Pressure Sensors Based on Sea-Urchin Shaped Metal Nanoparticles

Donghwa Lee; Hyungjin Lee; Youngjun Jeong; Yumi Ahn; Geonik Nam; Youngu Lee

doi:10.1002/adma.201603526

Highly Sensitive, Transparent, and Durable Pressure Sensors Based on Sea-Urchin Shaped Metal Nanoparticles

Adv Mater. 2016 Nov;28(42):9364-9369. doi: 10.1002/adma.201603526. Epub 2016 Aug 31.

Authors

Donghwa Lee¹, Hyungjin Lee¹, Youngjun Jeong¹, Yumi Ahn¹, Geonik Nam¹, Youngu Lee¹

Affiliation

¹ Department of Energy Systems Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang Daero, Hyeonpung-Myeon Dalseong-Gun, Daegu, 42988, Republic of Korea.

PMID: 27578433
DOI: 10.1002/adma.201603526

Abstract

Highly sensitive, transparent, and durable pressure sensors are fabricated using sea-urchin-shaped metal nanoparticles and insulating polyurethane elastomer. The pressure sensors exhibit outstanding sensitivity (2.46 kPa^-1 ), superior optical transmittance (84.8% at 550 nm), fast response/relaxation time (30 ms), and excellent operational durability. In addition, the pressure sensors successfully detect minute movements of human muscles.

Keywords: elastomers; piezoresistivity; pressure sensors; quantum tunneling; sea-urchin shaped metal nanoparticles.

MeSH terms

Animals
Elastomers / chemistry
Humans
Metal Nanoparticles / chemistry*
Monitoring, Physiologic / instrumentation*
Monitoring, Physiologic / methods*
Movement
Muscles / physiology
Pressure*
Sea Urchins
Touch

Substances

Elastomers