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
Deen, David A.
Olson, Eric J.
Ebrish, Mona A.
Koester, Steven J.
[J]. IEEE SENSORS JOURNAL, 2014, 14 (05) : 1459 - 1466
[2] Operation of multi-finger graphene quantum capacitance varactors using planarized local bottom gate electrodes
Ebrish, M. A.
Shao, H.
Koester, S. J.
[J]. APPLIED PHYSICS LETTERS, 2012, 100 (14)
[3] Acetone Adsorption on Pristine and Pt-doped Graphene: A First-Principles vdW-DF Study
Ganji, Masoud Darvish
Mazaheri, Hoda
Khosravi, Azadeh
[J]. COMMUNICATIONS IN THEORETICAL PHYSICS, 2015, 64 (05) : 576 - 582
[4] Detection of organic vapors by graphene films functionalized with metallic nanoparticles
Gautam, Madhav
Jayatissa, Ahalapitiya H.
[J]. JOURNAL OF APPLIED PHYSICS, 2012, 112 (11)
[5] A Sub-ppm Acetone Gas Sensor for Diabetes Detection Using 10 nm Thick Ultrathin InN FETs
Kao, Kun-Wei
Hsu, Ming-Che
Chang, Yuh-Hwa
Gwo, Shangjr
Yeh, J. Andrew
[J]. 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
Koester, Steven J.
[J]. APPLIED PHYSICS LETTERS, 2011, 99 (16)
[8] Breath acetone predicts plasma ketone bodies in children with epilepsy on a ketogenic diet
Musa-Veloso, K
Likhodii, SS
Rarama, E
Benoit, S
Liu, YMC
Chartrand, D
Curtis, R
Carmant, L
Lortie, A
Comeau, FJE
Cunnane, SC
[J]. NUTRITION, 2006, 22 (01) : 1 - 8
[9] The template-free synthesis of square-shaped SnO2 nanowires:: the temperature effect and acetone gas sensors
Qin, Lipeng
Xu, Jiaqiang
Dong, Xiaowen
Pan, Qingyi
Cheng, Zhixuan
Xiang, Qun
Li, Feng
[J]. NANOTECHNOLOGY, 2008, 19 (18)
[10] Highly sensitive carbon nanotubes-SnO2 nanocomposite sensor for acetone detection in diabetes mellitus breath
Salehi, Sara
Nikan, Ehsan
Khodadadi, Abbas Ali
Mortazavi, Yadollah
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2014, 205 : 261 - 267

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