导电聚合物的合成、表面形态、气体传感器、DSC技术及三阶行为

Synthesis, Surface Morphology, Gas Sensor, DSC Technique and Third-Order Behavior of Conducting Polymer.

作者信息

Tuma Fadhil A, Jari Alyaa A, Hasan Harith A, Badran Hussain A

机构信息

Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq.

Ministry of Education, Directorate of Education, Al-Basma Preparatory School for Girls, Basrah, Iraq.

出版信息

J Fluoresc. 2024 Sep;34(5):2309-2323. doi: 10.1007/s10895-023-03448-0. Epub 2023 Sep 27.

DOI:10.1007/s10895-023-03448-0

PMID:37755630

Abstract

The compound polyaniline (Poly-ANI) with different concentrations of (HSO) sulfuric acid has been synthesized by the chemical polymerization method. The prepared compounds have been characterized using number of techniques including FTIR, FE-SEM, EDS and DSC. Additionally, UV-Vis spectroscopy employed for studying the linear optical properties of polymer with different acid concentrations. Third order optical nonlinearity was characterized using Z-scan at 532 nm. The results showed that the nonlinear refractive index has a negative sign. It was observed that the nonlinear refractive index changes in different ratios of HSO. The high value of nonlinear refractive index ( ) obtained along Z-axis is cm/W, and the corresponding is 21.5 × 10 esu. Also, the Poly-ANI film shows the response to NH gas sensing in the range 20 ppm-250 ppm and can be used for NH sensing application.

摘要

通过化学聚合法合成了具有不同浓度（HSO）硫酸的复合聚苯胺（Poly-ANI）。所制备的化合物采用了包括傅里叶变换红外光谱（FTIR）、场发射扫描电子显微镜（FE-SEM）、能谱仪（EDS）和差示扫描量热法（DSC）等多种技术进行表征。此外，利用紫外可见光谱研究了不同酸浓度下聚合物的线性光学性质。采用Z扫描技术在532nm波长下对三阶光学非线性进行了表征。结果表明，非线性折射率为负。观察到非线性折射率在不同的HSO比例下会发生变化。沿Z轴获得的非线性折射率的高值为 cm/W，相应的为21.5×10 esu。此外，聚苯胺薄膜在20ppm - 250ppm范围内对NH气体传感有响应，可用于NH传感应用。