Synthesis of Coordination Polymers with High Carrier Mobilities and Application to Field Effect Transistors

最近，我们确定了混合价铜配位聚合物，包括二硫代氨基甲酸盐配体和溴离子或碘离子，具有相对较高的载流子迁移率的半导体特性，并且我们试图将这种配位聚合物应用于场效应晶体管（fet）的半导体材料。在这项研究中，我们发现具有铁电配位聚合物CuBrBu2D的场效应管器件在比传统有机场效应管器件低得多的电压下工作。根据输出特性估计的载流子迁移率为30.1 cm2/Vs，高于非晶硅。此外，在转移特性的测量中，该FET表现出双极FET的特性。

Recently, we determined that mixed-valence copper coordination polymers including a dithiocarbamate ligand and bromide or iodide anions exhibited semiconducting properties with relatively high carrier mobilities, and we have attempted to apply the coordination polymers to the semiconducting materials of field-effect transistors (FETs). In this research, we found that a FET device with a ferroelectric coordination polymer CuBrBu2D performed at extremely lower voltage than those of the conventional organic FETs. The carrier mobility estimated from the output characteristics was found to be 30.1 cm2/Vs, which was higher than that of amorphous silicon. In addition, this FET shows ambipolar FET characteristics in the measurements of the transfer characteristics.