Cantilevered carbon nanotube hygrometer

被引：4

作者：

Kuroyanagi, Toshinori ^{[1
]}

Terada, Yuki ^{[1
]}

Takei, Kuniharu ^{[1
]}

Akita, Seiji ^{[1
]}

Arie, Takayuki ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Dept Phys & Elect, Sakai, Osaka 5998531, Japan

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 19期

基金：

日本学术振兴会;

关键词：

MICROSCOPE; SENSORS; LIQUID; WATER;

D O I：

10.1063/1.4876959

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the effects of humidity on the vibrations of carbon nanotubes (CNTs) using two types of CNT cantilevers: open-ended and close-ended CNT cantilevers. As the humidity increases, the resonant frequency of the open-ended CNT cantilever decreases due to the adsorption of water molecules onto the CNT tip, whereas that of the close-ended CNT cantilever increases probably due to the change in the viscosity of the air surrounding the CNT cantilever, which is negatively correlated with the humidity of air. Our findings suggest that a close-ended CNT cantilever is more suitable for a quick-response and ultrasensitive hygrometer because it continuously reads the viscosity change of moist air in the vicinity of the CNT. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 26 条

[1] Molecular Simulation of Water in Carbon Nanotubes [J].

Alexiadis, Alessio ;

Kassinos, Stavros .

CHEMICAL REVIEWS, 2008, 108 (12) :5014-5034

[2] A multi-walled carbon nanotube cantilever for interaction force sensing in liquid [J].

Arie, Takayuki ;

Sawano, Shunichi ;

Akita, Seiji .

AIP ADVANCES, 2012, 2 (01)

[3] Vapor viscosities and the Sutherland equation [J].

Arnold, JH .

JOURNAL OF CHEMICAL PHYSICS, 1933, 1 (02) :170-176

[4] Effect of fluids on the Q factor and resonance frequency of oscillating micrometer and nanometer scale beams -: art. no. 036307 [J].

Bhiladvala, RB ;

Wang, ZJ .

PHYSICAL REVIEW E, 2004, 69 (03) :036307-1

[5] Fabrication of single crystal Si cantilevers using a dry release process and application in a capacitive-type humidity sensor [J].

Chatzandroulis, S ;

Tserepi, A ;

Goustouridis, D ;

Normand, P ;

Tsoukalas, D .

MICROELECTRONIC ENGINEERING, 2002, 61-2 :955-961

[6] Vibrating carbon nanotube based bio-sensors [J].

Chowdhury, R. ;

Adhikari, S. ;

Mitchell, J. .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2009, 42 (02) :104-109

[7] Temperature Dependence of Cantilevered Carbon Nanotube Oscillation [J].

Fukami, Shun ;

Arie, Takayuki ;

Akita, Seiji .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2010, 49 (06) :06GK021-06GK024

[8] Effect of Gaseous Dissipation of Oscillating Cantilevered Carbon Nanotubes [J].

Fukami, Shun ;

Arie, Takayuki ;

Akita, Seiji .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2009, 48 (06) :06FG041-06FG043

[9] Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes [J].

Hata, K ;

Futaba, DN ;

Mizuno, K ;

Namai, T ;

Yumura, M ;

Iijima, S .

SCIENCE, 2004, 306 (5700) :1362-1364

[10] Vibration signature analysis of single walled carbon nanotube based nanomechanical sensors [J].

Joshi, Anand Y. ;

Harsha, S. P. ;

Sharma, Satish C. .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2010, 42 (08) :2115-2123

← 1 2 3 →