Ultrafast freestanding microfiber humidity sensor based on three-dimensional graphene network cladding

被引：13

作者：

Zhong, Yongchun ^{[1
]}

Wang, Yanzhen ^{[1
]}

Wang, Zhaoqun ^{[2
]}

Xing, Zengshan ^{[3
]}

Xiao, Yi ^{[3
]}

Yu, Jianhui ^{[4
]}

Guan, Heyuan ^{[4
]}

Luo, Yunhan ^{[5
]}

Lu, Huihui ^{[5
]}

Zhu, Wenguo ^{[3
]}

Chen, Zhe ^{[3
]}

机构：

[1] Jinan Univ, Dept Optoelect Engn, Guangzhou 510632, Peoples R China

[2] Nanjing Univ, Sch Chem & Chem Engn, Dept Polymer Sci & Engn, Key Lab High Performance Polymer Mat & Technol,Mi, Nanjing 210023, Jiangsu, Peoples R China

[3] Jinan Univ, Key Lab Optoelect Informat & Sensing Technol Guan, Guangzhou 510632, Peoples R China

[4] Jinan Univ, Key Lab Visible Light Commun Guangzhou, Guangzhou 510632, Peoples R China

[5] Jinan Univ, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Peoples R China

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 04期

基金：

中国国家自然科学基金;

关键词：

POLISHED OPTICAL-FIBER; BRAGG GRATING SENSOR; HUMAN BREATH; OXIDE; SENSITIVITY; SCATTERING; RESONATOR; COMPOSITE;

D O I：

10.1364/OE.379812

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An all-fiber humidity sensor is proposed and fabricated by depositing three-dimensional graphene network (3DGN) around the surface of a freestanding microfiber (MF). The high specific surface area and porosity of 3DGN enhances its interaction with water molecules, allowing high performance of the humidity sensor. The sensor can operate in a wide relative humidity (RH) range of 11.6%RH-90.9%RH with a high sensitivity of -2.841 dB/%RH in the RH range (80.3%RH - 90.9%RH). The response and recovery times of this type of microfiber sensor are measured respectively to be 57 ms and 55 ms, which are one order magnitude faster than those of other fiber RH sensors activated by two-dimensional materials coating. Such an all-fiber RH sensor with high sensitivity and fast response property possesses great potential of application in widespread fields, such as biology, chemical processing and food processing. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：4362 / 4373

页数：12

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