Optical ammonia gas sensor of poly(3,4-polyethylenedioxythiophene), polyaniline and polypyrrole: A comparative study

被引：25

作者：

Ismail, Abdul Hadi ^{[1
]}

Yahya, Nor Akmar Mohd ^{[2
]}

Yaacob, Mohd Hanif ^{[2
]}

Mahdi, Mohd Adzir ^{[2
]}

Sulaiman, Yusran ^{[1
,3
]}

机构：

[1] Univ Putra Malaysia, Inst Adv Technol ITMA, Funct Devices Lab, Selangor Darul Ehsan 43400, Malaysia

[2] Univ Putra Malaysia, Wireless & Photon Network Res Ctr WiPNET, Selangor Darul Ehsan 43400, Malaysia

[3] Univ Putra Malaysia, Fac Sci, Dept Chem, Selangor Darul Ehsan 43400, Malaysia

来源：

SYNTHETIC METALS | 2020年 / 260卷

关键词：

Optical gas sensor; Ammonia gas sensor; Conducting polymers; SENSING PROPERTIES; RAMAN; CHEMIRESISTOR; FABRICATION; POLYMERS; ANILINE;

D O I：

10.1016/j.synthmet.2020.116294

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, the optical sensing performance of three different types of conducting polymers, polyaniline (PANI), poly(3,4-ethylenedioxythiophene) (PEDOT) and polypyrrole (PPy) towards ammonia (NH3) gas has been evaluated. The sensing analyses of the respective conducting polymers were measured in the optimised wavelength ranges that manifest absorbance response upon exposure to NH3 gas. Based on the dynamic response where the respective conducting polymers were exposed to NH3 gas within the concentration range of 0.0625 % to 1 %, PEDOT exhibited the highest sensitivity (9.031%) towards NH3 gas comparing to PANI and PPy with the detection limit of 2.73 ppm, which is in agreement with their respective conductivity trends.

引用

页数：9

共 57 条

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