Disclosed is a field effect transistor which has a practical carrier mobility, low threshold voltage and low energy consumption by using a specific organic compound as a semiconductor material. Specifically disclosed is a field effect transistor which is characterized in that a semiconductor layer is formed by using at least one compound represented by Formula (1) below as a semiconductor material.
wherein, X1 and X2 independently represent a sulfur atom, a selenium atom or a tellurium atom; and R1 and R2 independently represent a C1-C14 alkyl group. When both X1 and X2 are selenium atoms, R1 and R2 independently represent a C1-C4 alkyl group.
本发明公开了一种场效应晶体管,该晶体管使用特定的有机化合物作为半导体材料,具有实用的载流子迁移率、低阈值电压和低能耗。具体地说,本发明公开了一种场效应晶体管,其特征在于通过使用至少一种由下式(1)表示的化合物作为半导体材料形成半导体层。
其中,X1 和 X2 独立地代表
硫原子、
硒原子或
碲原子;R1 和 R2 独立地代表 C1-C14 烷基。当 X1 和 X2 均为
硒原子时,R1 和 R2 独立地代表 C1-C4 烷基。