Electric properties of circuit network made from branched conducting polymer nanofiber

研制了在细电极上使用隔离纳米纤维的场效应晶体管，并研究了纳米纤维的载流子迁移率。迁移率为5×10^<-2>cm^2/(Vs)，高于薄膜状态，且与纳米纤维的结晶度密切相关。此外，利用支链中心单元建立了聚噻吩纳米纤维的电路网络，明确了结构的拓扑维数与纳米纤维网络中载流子输运维数之间的关系。此外，制备了以金胶体为支链中心单元的聚噻吩纳米纤维电路网络，但在电路网络的电学性质中，金胶体的电子态性质没有得到充分的观察，这一问题有待于今后的工作。

The field-effect transistor using the isolated nanofiber on fine electrodes was developed, and the carrier mobility of the nanofiber was investigated. The mobility was higher value, 5×10^<-2>cm^2/(Vs), than that of a film state, and had strong relation with the crystallinity of the nanofiber. Furthermore, the circuit network of the polythiophene nanofiber was established using branched center units and we clarified the relation between the topological dimension of structures and dimension of the carrier transport in the nanofiber network. In addition, the circuit network of the polythiophene nanofiber using Au colloids as branched center units was fabricated, but the properties of electronic state of Au colloids was not be observed sufficiently in the electric properties of circuit network and this issue was remained to the future work.