| 초록 |
Poly(p-phenylenevinylene)s have widely been used to optoelectronic devices such as organic light-emitting diodes, field effect transistors, and photovoltaic cells. However, PPVs are well known to possess an imbalance in the mobilities of electrons and holes; holes dominating the transport. In order to enhance the mobility of electrons, electron transporting moieties were introduced to the PPV backbone as the side chain or main chains. Introducing the high-electron-affinity oxadiazole moiety into the PPV backbone could lower both the HOMO and LUMO energy levels of the polymer, thus mitigating the problem of the charge imbalance. In this presentation, we synthesized PPV derivatives containing an 1,3,4-oxadiazole unit on the side groups through the Gilch polymerzation. The characterization, electrochemical and optical properties are discussed. We also investigate the device performance using these PPV derivatives as an active layer in organic electronic devices. |
