Fabrication and Characterization of an Ammonia Gas Sensor Based on PEDOT-PSS With N-Doped Graphene Quantum Dots Dopant

被引：50

作者：

Hakimi, Mahdieh ^{[1
]}

Salehi, Alireza ^{[1
]}

Boroumand, Farhad A. ^{[1
]}

机构：

[1] KN Toosi Univ Technol, Fac Elect Engn, Dept Elect, Tehran 1631714191, Iran

来源：

IEEE SENSORS JOURNAL | 2016年 / 16卷 / 16期

关键词：

Gas sensor; PEDOT-PSS; N-GQDs; ammonia; ENHANCED SENSITIVITY; PERFORMANCE; STABILITY; GREEN;

D O I：

10.1109/JSEN.2016.2585461

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：

This paper investigated a room temperature resistive ammonia gas sensor based on a conductive polymer and N-doped graphene quantum dots (N-GQDs) dopant made on a transparent substrate with electrodes. The sensor fabricated with conductive polymer showed a good sensing response that increases considerably with the addition of N-GQDs. The sensing response of the poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) to NH3 increased from 30.13% to 212.32% at 1500 ppm with the addition of 50 wt% N-GQDs. The response time of the N-GQDs doped sensor decreased to 6.8 min when compared with the sensor without N-GQDs and the stability of the sensor having combined N-GQDs and PEDOT-PSS was higher than that of the PEDOT-PSS sensor. Meanwhile, the structure and morphology of the sensing film are characterized by Fourier transform infrared spectroscopy and field emissions scanning electron microscopy.

引用

页码：6149 / 6154

页数：6

共 30 条

[21] Mechanism for toluene detection of flower-like ZnO sensors prepared by hydrothermal approach: Charge transfer [J].

Tang, Wei ;

Wang, Jing .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 207 :66-73

[22] One-pot synthesis of N-doped graphene quantum dots as a fluorescent sensing platform for Fe3+ ions detection [J].

Tran Van Tam ;

Nguyen Bao Trung ;

Kim, Hye Ryeon ;

Chung, Jin Suk ;

Choi, Won Mook .

SENSORS AND ACTUATORS B-CHEMICAL, 2014, 202 :568-573

[23] Gas sensor network for air-pollution monitoring [J].

Tsujita, W ;

Yoshino, A ;

Ishida, H ;

Moriizumi, T .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 110 (02) :304-311

[24] Enhanced Sensitivity and Stability of Room-Temperature NH3 Sensors Using Core-Shell CeO2 Nanoparticles@Cross-linked PANI with p-n Heterojunctions [J].

Wang, Lingling ;

Huang, Hui ;

Xiao, Songhua ;

Cai, Daoping ;

Liu, Yuan ;

Liu, Bin ;

Wang, Dandan ;

Wang, Chenxia ;

Li, Han ;

Wang, Yanrong ;

Li, Qiuhong ;

Wang, Taihong .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (16) :14131-14140

[25]

Wei Sun, 2013, 2013 IEEE International Conference on Green Computing and Communications (GreenCom) and IEEE Internet of Things (iThings) and IEEE Cyber, Physical and Social Computing (CPSCom), P1718, DOI 10.1109/GreenCom-iThings-CPSCom.2013.316

[26] Enhanced sensitivity of ammonia sensor using graphene/polyaniline nanocomposite [J].