Recent achievements in conjugated polymer-based gas sensors by side-chain engineering

IF 2.8 4区工程技术 Q2 POLYMER SCIENCE

Macromolecular Research Pub Date : 2024-09-12 DOI:10.1007/s13233-024-00318-x

Jinhyun Hwang, Jiho Shin, Wi Hyoung Lee

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Abstract

Recent advancements in conjugated polymer-based gas sensors have highlighted the critical role of side-chain engineering in optimizing organic field-effect transistor (OFET) performance for gas detection. This review provides a comprehensive analysis of how structural modifications of side chains in conjugated polymers affect the electrical properties of OFETs, as well as the sensitivity and selectivity of OFET-based gas sensors. We first explore modifications of alkyl side chains and their impact on the electrical characteristics of conjugated polymers. Then, we discuss how functionalized side chains and additives can significantly enhance sensor performance by improving detection limits and selectivity. Special attention is given to glycol-based side chains, particularly in enhancing NO₂ sensitivity, and the role of alkyl side chain length in tuning gas sensing capabilities. This review aims to elucidate the intricate relationships between side chain modifications and sensor performance, offering insights for the development of advanced OFET-based gas sensors with improved sensitivity and selectivity.

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通过侧链工程研究共轭聚合物气体传感器的最新成果

基于共轭聚合物的气体传感器的最新进展凸显了侧链工程在优化有机场效应晶体管 (OFET) 气体检测性能方面的关键作用。本综述全面分析了共轭聚合物侧链的结构修饰如何影响 OFET 的电特性以及基于 OFET 的气体传感器的灵敏度和选择性。我们首先探讨了烷基侧链的改性及其对共轭聚合物电特性的影响。然后，我们讨论了功能化侧链和添加剂如何通过提高检测限和选择性来显著增强传感器性能。我们特别关注了乙二醇侧链，尤其是在提高二氧化氮灵敏度方面，以及烷基侧链长度在调整气体传感能力方面的作用。本综述旨在阐明侧链修饰与传感器性能之间错综复杂的关系，为开发具有更高灵敏度和选择性的先进 OFET 气体传感器提供启示。

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来源期刊

Macromolecular Research 工程技术-高分子科学

CiteScore

4.70

自引率

8.30%

发文量

100

审稿时长

1.3 months

期刊介绍： Original research on all aspects of polymer science, engineering and technology, including nanotechnology Presents original research articles on all aspects of polymer science, engineering and technology Coverage extends to such topics as nanotechnology, biotechnology and information technology The English-language journal of the Polymer Society of Korea Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.