TY - JOUR
T1 - Flexible and conductive core-sheath fiber using multifunctional merocyanine as a smart electrolyte for a high-performance fibrous visible light sensor
AU - Dang, Guiqing
AU - Fan, Longfei
AU - Chen, Kaifang
AU - Hu, Ronghua
AU - Luo, Yuncong
AU - Huang, Yutao
AU - Wu, Qinghua
AU - Zhu, Min
AU - Xin, John H.
AU - Lu, Hanlun
AU - Gan, Feng
N1 - Funding Information:
The authors thank the support of the National Natural Science Foundation of China (Grants: 52003201 and 52103010 ), Guangdong Basic and Applied Basic Research Foundation (Grants: 2019A1515110327 and 2020A1515110897 ), the Natural Science Foundation of Guangdong Province , China (Grant: 2023A1515010694 ), Joint Research Fund for Wuyi University, Hong Kong and Macao Young Scholars (Grant: 2019WGALH05 ), Basic and Applied Basic Research Foundation of Jiangmen (Grant: 2021030102790006114 ), Science Foundation for Young Teachers of Wuyi University (Grant: 2018AL017 ), and Bureau of Science and Technology of Jiangmen Municipality (Grant: 2021030102030004890 ).
Publisher Copyright:
© 2023 The Author(s)
PY - 2023/7
Y1 - 2023/7
N2 - Flexible conductive fibers have attracted significant attention in the wearable electronics field because of light weight, small size, and easy shape morphing. To date, there are few reports on multifunctional flexible conductive fibers. Finding a facile and effective solution for large-scale production of flexible conductive fibers is still a challenge. In this work, a flexible core-sheath fiber with excellent electrical conductivity (24.71 Ω·m) and visible light sensing is fabricated, which contains a merocyanine diol (MC(OH)2)/CrCl3·6H2O/ethanol aqueous solution core layer and a silicon rubber outer layer. The synthesized MC(OH)2 is an intelligent molecular switch with a visible light response that can reversibly convert from open-form MC(OH)2 to closed-form spiropyran diol (SP(OH)2) after short visible light irradiation. In the reverse process, the transition from SP(OH)2 to MC(OH)2 can occur gradually in the dark. This can be used to sense visible light in addition to electrical conductivity. The reversible change in the electrical resistance of the MC(OH)2/CrCl3·6H2O/ethanol aqueous solution reaches 15.59%. This fiber shows excellent electrical conductivity, good flexibility, a sensitive visible light response, good photochromism, a simple structure, low cost, easy preparation, and suitability for industrial large-scale production, offering promise for applications in the fields of flexible and wearable electronics.
AB - Flexible conductive fibers have attracted significant attention in the wearable electronics field because of light weight, small size, and easy shape morphing. To date, there are few reports on multifunctional flexible conductive fibers. Finding a facile and effective solution for large-scale production of flexible conductive fibers is still a challenge. In this work, a flexible core-sheath fiber with excellent electrical conductivity (24.71 Ω·m) and visible light sensing is fabricated, which contains a merocyanine diol (MC(OH)2)/CrCl3·6H2O/ethanol aqueous solution core layer and a silicon rubber outer layer. The synthesized MC(OH)2 is an intelligent molecular switch with a visible light response that can reversibly convert from open-form MC(OH)2 to closed-form spiropyran diol (SP(OH)2) after short visible light irradiation. In the reverse process, the transition from SP(OH)2 to MC(OH)2 can occur gradually in the dark. This can be used to sense visible light in addition to electrical conductivity. The reversible change in the electrical resistance of the MC(OH)2/CrCl3·6H2O/ethanol aqueous solution reaches 15.59%. This fiber shows excellent electrical conductivity, good flexibility, a sensitive visible light response, good photochromism, a simple structure, low cost, easy preparation, and suitability for industrial large-scale production, offering promise for applications in the fields of flexible and wearable electronics.
KW - Conductive fiber
KW - Fibrous sensor
KW - Merocyanine
KW - Spiropyran
KW - Visible light sensor
UR - http://www.scopus.com/inward/record.url?scp=85161296552&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2023.112061
DO - 10.1016/j.matdes.2023.112061
M3 - Journal article
AN - SCOPUS:85161296552
SN - 0264-1275
VL - 231
JO - Materials and Design
JF - Materials and Design
M1 - 112061
ER -