氧化石墨烯/多组份导电聚合物超分子复合体系气敏特性研究

Gragphene oxide (GO), as a tunable platform for gas sensing applications, can form a supermolecular composites with conducting polymer exhibiting high sensitivity, selectivity and single molecule detection performance.This project focuses on Langmuir-Blodgett (LB) assembly and vapor phase polymerization (VPP)deposition of GO/multi-composition conducting polymer supermolecular compoistes and its gas sensing performance.We will demonstrate the combination of this supermolecular composites with micro/nano gas sensor preparation technology to construct high performance gas sensors. The influence of conducting polymer composition in supermolecular composites on gas sensing performance,such as sensitivity and selectivity, is to be studied in detail. Moreover, the influence of GO reduction and doping state of conducting polymer on gas sening performance of supermolecuar composites will be also investigated. We explore the gas sensing mechanism and establish related gas sensing model for further understanding this nanomaterials as sensing materials. Hereby,based on the reserch above, we provide experimental and theoritcal basis to employ this novel supermolecular composites as excellent gas sensing materials for related high performance gas sensors.

氧化石墨烯（GO）作为气敏特性可调控的敏感材料平台，其与导电聚合物形成超分子复后可实现对气体的高灵敏度、高选择性和单分子探测。本项目采用LB膜组装与化学气相聚合沉积相结合可控制备GO/多组份导电聚合物超分子复合纳米材料，研究该种复合纳米材料的气体敏感性能，并结合微/纳器件制备技术构建高性能气体传感器；重点研究超分子复合纳米材料中导电聚合物组份变化对传感器气敏选择性和灵敏度的影响，考察GO的还原和导电聚合物的掺杂对超分子复合纳米材料气敏特性的影响，建立GO/导电聚合物超分子复合纳米结构的气敏机理模型，为基于GO/导电聚合物超分子复合纳米材料的高性能气体传感器研究提供重要实验基础和理论依据。

氧化石墨烯（GO）作为气敏特性可调控的敏感材料平台，其与导电聚合物形成超分子复后可实现对气体的高灵敏度、高选择性和单分子探测。本项目采用LB膜组装与聚合沉积相结合可控制备rGO/多组份导电聚合物超分子复合纳米材料，研究该种复合纳米材料的气体敏感性能，并结合微/纳器件制备技术构建高性能气体传感器；研究结果表明，通过LB膜与原位聚合组装方式可以稳定获得rGO/导电聚合物复合纳米材料，该类材料具有良好的导电特性；气敏测试表明复合材料对氨气、二氧化氮等气体具有良好的敏感性能；项目建立了该类材料的普适性气敏机理，为基于GO/导电聚合物超分子复合纳米材料的高性能气体传感器研究提供重要实验基础和理论依据