中文摘要：

聚苯胺是一种制备简单、性质稳定、有着各种不同结构以及具有可掺杂特性的高分子材料。利用聚苯胺的可掺杂特性以及复合组装方法，在实验室条件下制得聚苯胺水溶液，利用聚苯乙烯磺酸作为聚电解质材料。在叉指电极上组装了不同层数的复合膜。利用薄膜在氨气环境中导电能力的变化，得到了复合组装薄膜氨气气体传感器，并研究了传感器对氨气的响应特性。

英文摘要：

Polyaniline is high polymer material of preparing simple and stable, and have diverse different structures and the properties can be doped.Using the characteristic of polyaniline can be doped and the composite assembly method,the polyaniline-solution under the laboratory conditions was gotten.The complex film with different layers was assembled on the interdigital electrodesby using the polystyrene sulfonic acid as the pelyelectrolyte materials.Based on the changes of the conductive ability of the thin film in the ammonia, a composite assembled film ammonia gas sensor was gotten,and the response characteristics of the sensor on ammonia was studied.