| 초록 |
Substantial progress has been made in the exploration of organic semiconductors as active elements in electronic devices i.e., field-effect transistors (FETs). DPP can be considered as a fused aromatic ring of two pyrrolidones. A natural extension of DPP by fusing two pyrrolidones to cyclohexa-1,4-diene would form a larger conjugated moiety, benzodipyrrolidone (BDP). When using BDP as a building block in polymer backbones, the more extended π-conjugation and the larger ring size of BDP could provide stronger intermolecular interactions and larger π–π overlapping between polymer chains, which are desirable characteristics for efficient charge transport. In this work, we demonstrate the synthesis of new low bandgap alternating copolymers containing benzodipyrrolidone (BDP). Thermal analaysis, cyclic voltammetry and absorption spectroscopy were employed to investigate their material properties. Eventually, we fabricated field effect transistor to study their semiconducting property. |
