CuPc/H_2 PtCl_6有机半导体毒气传感器的制备与性能

Preparation and Characteristics of CuPc/H_2PtCl_6 Based Organic Semiconductor Poisonous Gas Sensor

针对有毒有害气体的监测问题,采用有机合成工艺制备了CuPc有机半导体材料,并对其进行杂化处理和电极设计,形成了具有较佳性能的毒气传感器．以对甲基苯酚、4-硝基邻苯二晴为原材料,以N,N-二甲基甲酰胺为溶剂,在N\-2保护和碳酸钾的催化作用下合成酞菁分子碎片,再以共溶技术合成了4取代对甲苯氧基CuPc．然后,按照一定比例将CuPc和H\-2 PtCl\-6共溶在甲醇溶液中,杂化合成了有机半导体CuPc/H\-2PtCl\-6气敏材料．并采用多孔电极结构结合真空饺技术形成气敏薄膜型传感器．质谱和红外吸收光谱分析验证了合成工艺路线的正确性．电子扫描观察了多孔电极和气敏膜的微观形貌．气敏性能测试表明,CuPe/H\-2PtCl\-6对Cl\-2和H\-2S等有毒气体有较好的敏感性和选择性．

CuPc based organic semiconductor material is prepared using template-based approach, and poisonous gas sensor with fine performance is made through electrode design. First, phthalocyanine molecule fragment is synthesized using methyphenol and 4-Nitro phthalonitrile as raw materials and DMF as solvent under the catalysis of potassium in nitrogen atmosphere, then CuPc is chemosynthesized. Second, organic semiconducting CuPc/H2PtCl6 gas sensing material is synthesized by dissolving CuPc and H2PtCl6 in methanol at certain ratio. Finally, thin film gas sensor with mesoporous electrode structure is made using vacuum plating technique. Synthesized process is conformed by mass spectrum and infrared spectrum. The morphology of the the mesoporous electrode and gas sensing thin film is characterized by scanning electron microscopy （SEM）. Test result indicates that CuPc/H2PtCl6 shows high sensitivity and selectivity to Cl2 and H2S.