反向胶束法制备PEDOT纳米粒子气体敏感性的研究  

Study on the gas sensitivity of PEDOT nanoparticles based on reversed micelle method

作　　者：郑华靖[1] 徐建华[1] 蒋亚东[1] 杨亚杰[1] 

机构地区：[1]电子科技大学光电信息学院电子薄膜与集成器件国家重点实验室,四川成都610054

出　　处：《功能材料》2010年第2期331-334,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(60372002)

摘　　要：通过用紫外-可见-近红外光谱、X射线光电子能谱及透射电镜等手段对采用反向胶束合成法,以二乙基磺基琥珀酸钠(AOT)形成的反胶束为模板制备出的导电聚合物聚3,4乙烯二氧噻吩(PEDOT)纳米粒子对HCl气体敏感性进行研究。沉积有纳米粒子的QCM器件对2.0×10-5气体响应时间为20s,具有较好的响应恢复特性,能够有效探测低浓度(5×10-6)气体,气敏特性明显优于普通PEDOT粒子。Based on a new type of conducting polymer poly（3,4-ethylenedioxythiophene）（PEDOT）,this paper focused on the preparation and gas sensitivity of PEDOT nanostructure with reversed micelle method.PEDOT nanoparticles were characterized to gas sensitivity by different methods,such as ultraviolet/visible（UV-Vis） spectroscopy,X-ray photoelectron spectroscopy（XPS） and so on.The latest investigation of gas sensitivity of PEDOT nanoparticles to HCl gas was carried out,and it has been found that the response time of PEDOT nanoparticles deposited QCM to 2.0×10^-5 HCl gas was about 20s and well reproducible sensitivity of QCM device was achieved.Furthermore,the nanoparticles exhibited well detecting ability to lower gas concentration（5×10^-6） than conventional one.

关 键 词：PEDOT 导电聚合物 反向胶束 纳米粒子 气敏性能 

分 类 号：O647.2[理学—物理化学]