Acetone Sensing Using Graphene Quantum Capacitance Varactors

被引：0

作者：

Ma, Rui ^{[1
]}

Su, Qun ^{[1
]}

Li, Jing ^{[1
]}

Koester, Steven J. ^{[1
]}

机构：

[1] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA

来源：

2016 IEEE SENSORS | 2016年

关键词：

graphene; acetone; quantum capacitance; varactor; SENSOR;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Sensing of acetone using the quantum capacitance in graphene is demonstrated. The sensor was constructed by using graphene as the top electrode in a metal-oxide-graphene variable capacitor (varactor) structure. The relative capacitance change was found to vary with acetone concentration with a relative capacitance sensitivity, Delta C/C of 1.29 +/- 0.04 x 10(-4) % / ppmv. The sensor was also found to have 3x enhanced sensitivity in dry air compared to N-2 and showed excellent reversibility. The results represent the first step toward the realization of passive, wireless acetone sensors using graphene varactors.

引用

页数：3

共 13 条

[1] Graphene-Based Quantum Capacitance Wireless Vapor Sensors [J].

Deen, David A. ;

Olson, Eric J. ;

Ebrish, Mona A. ;

Koester, Steven J. .

IEEE SENSORS JOURNAL, 2014, 14 (05) :1459-1466

[2] Operation of multi-finger graphene quantum capacitance varactors using planarized local bottom gate electrodes [J].

Ebrish, M. A. ;

Shao, H. ;

Koester, S. J. .

APPLIED PHYSICS LETTERS, 2012, 100 (14)

[3] Acetone Adsorption on Pristine and Pt-doped Graphene: A First-Principles vdW-DF Study [J].

Ganji, Masoud Darvish ;

Mazaheri, Hoda ;

Khosravi, Azadeh .

COMMUNICATIONS IN THEORETICAL PHYSICS, 2015, 64 (05) :576-582

[4] Detection of organic vapors by graphene films functionalized with metallic nanoparticles [J].

Gautam, Madhav ;

Jayatissa, Ahalapitiya H. .

JOURNAL OF APPLIED PHYSICS, 2012, 112 (11)

[5] A Sub-ppm Acetone Gas Sensor for Diabetes Detection Using 10 nm Thick Ultrathin InN FETs [J].

Kao, Kun-Wei ;

Hsu, Ming-Che ;

Chang, Yuh-Hwa ;

Gwo, Shangjr ;

Yeh, J. Andrew .

SENSORS, 2012, 12 (06) :7157-7168

[6]

Koester S. J., 2011, IEEE SENS C LIM IR O

[7] High quality factor graphene varactors for wireless sensing applications [J].

Koester, Steven J. .

APPLIED PHYSICS LETTERS, 2011, 99 (16)

[8] Breath acetone predicts plasma ketone bodies in children with epilepsy on a ketogenic diet [J].

Musa-Veloso, K ;

Likhodii, SS ;

Rarama, E ;

Benoit, S ;

Liu, YMC ;

Chartrand, D ;

Curtis, R ;

Carmant, L ;

Lortie, A ;

Comeau, FJE ;

Cunnane, SC .

NUTRITION, 2006, 22 (01) :1-8

[9] The template-free synthesis of square-shaped SnO2 nanowires:: the temperature effect and acetone gas sensors [J].

Qin, Lipeng ;

Xu, Jiaqiang ;

Dong, Xiaowen ;

Pan, Qingyi ;

Cheng, Zhixuan ;

Xiang, Qun ;

Li, Feng .

NANOTECHNOLOGY, 2008, 19 (18)

[10] Highly sensitive carbon nanotubes-SnO2 nanocomposite sensor for acetone detection in diabetes mellitus breath [J].

Salehi, Sara ;

Nikan, Ehsan ;

Khodadadi, Abbas Ali ;

Mortazavi, Yadollah .

SENSORS AND ACTUATORS B-CHEMICAL, 2014, 205 :261-267

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