Integrated sensors for bodily measurements require a sensing material that is highly conductive, flexible, thin and sensitive. It is important that these materials are non-invasive in application but robust in nature to allow for effective, continuous measurement. Herein, we report a comparative study of two simple, scalable methods to produce silver nanowire (AgNW) polyurethane (PU) composite materials: layer-bylayer (LBL) and mixed filtration. Both types of composites formed were ultrathin (similar to 50 mu m) and highly conductive (10(4) S m(-1)), with the LBL method ultimately found to be superior due to its low percolation threshold. Electrical resistance of the LBL composites was found to vary with strain, making these materials suitable for strain sensing. LBL composites displayed a working strain up to similar to 250% and a high gauge factor (G), with values of G similar to 70 reported. The sensors reported here were similar to 10(9)-times more conductive and similar to 10(4)-times thinner than their carbon-based composite sensor counterparts with similar gauge factor. This made the strain sensors presented here among one of the most flexible, highly sensitive, thinnest, conductive materials in literature. We demonstrated that with these properties, the LBL composites formed were ideal for bodily motion detection.
机构:
Korea Inst Geosci & Mineral Resources, Mineral Resources Res Div, Taejon 305350, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Kim, Young-Ju
;
Cha, Ju Young
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Pukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Cha, Ju Young
;
Ham, Heon
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机构:
TEMP CO LTD, Ansan 425833, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Ham, Heon
;
Huh, Hoon
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Korea Inst Ind Technol, Cleaner Prod Ctr, Cheonan 330825, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Huh, Hoon
;
So, Dae-Sup
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Korea Inst Sci & Technol Informat, Ind Informat Anal Dept, Seoul 130741, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
So, Dae-Sup
;
Kang, Inpil
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机构:
Pukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
机构:
Korea Inst Geosci & Mineral Resources, Mineral Resources Res Div, Taejon 305350, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Kim, Young-Ju
;
Cha, Ju Young
论文数: 0引用数: 0
h-index: 0
机构:
Pukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Cha, Ju Young
;
Ham, Heon
论文数: 0引用数: 0
h-index: 0
机构:
TEMP CO LTD, Ansan 425833, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Ham, Heon
;
Huh, Hoon
论文数: 0引用数: 0
h-index: 0
机构:
Korea Inst Ind Technol, Cleaner Prod Ctr, Cheonan 330825, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
Huh, Hoon
;
So, Dae-Sup
论文数: 0引用数: 0
h-index: 0
机构:
Korea Inst Sci & Technol Informat, Ind Informat Anal Dept, Seoul 130741, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea
So, Dae-Sup
;
Kang, Inpil
论文数: 0引用数: 0
h-index: 0
机构:
Pukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South KoreaPukyong Natl Univ, Dept Mech & Automot Engn, Pusan 608739, South Korea