Facile preparation of fullerenol-based humidity sensor with highly fast response

被引：3
作者：
Wu, Xingshun [1 ]
Wu, Huimin [1 ]
Jin, Fei [1 ]
Ge, Hong-Liang [1 ]
Gao, Feng [2 ]
Wu, Qiong [1 ]
Wang, Song [3 ]
Wang, Ying [1 ]
Yang, Hua [1 ]
机构：
[1] China Jiliang Univ, Magnetism Key Lab Zhejiang Prov, Hangzhou, Peoples R China
[2] China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Peoples R China
[3] Chongqing Technol & Business Univ, Coll Environm & Resources, Dept Mat Sci & Engn, Chongqing, Peoples R China
来源：
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2023年 / 31卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Fullerenol; carbon nanomaterials; humidity sensor; adsorption; SENSING PROPERTIES; GRAPHENE OXIDE; TEMPERATURE; SOLUBILITY;
D O I：
10.1080/1536383X.2023.2255317
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
As a typical representative of water-soluble fullerene derivatives, fullerenols have been widely used in biomedicine, adsorption, and sensor detection. This paper has studied the structure and composition of commercial fullerenols, which indicate abundant hydrophilic groups exist on the surface of carbon cages to promote the adsorption of water molecules. It is found that the humidity sensor coated with fullerenols has a fast response (19s)/recovery time (12s) and low hysteresis (& UDelta;H & AP; 2.68%RH) at the relative humidity level of 11-97%. The change mechanism of the impedance signal is due to the ions' formation caused by the adsorption of water molecules. Excellent repeatability and stability are still maintained after a long time of exposure in the air, which displays great application potential.
引用
收藏
页码：1132 / 1136
页数：5
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