研究目的
To generate a ferroelectric conjugated polymer by introducing dipolar 2,3-difluorobenzene-units into the backbone of a poly(para-phenyleneethynylene) (PPE), enabling the orientation of molecular dipoles by external electrical fields at room temperature.
研究成果
The study successfully demonstrated a ferroelectric PPE with dipolar 2,3-difluorobenzene-units, showing remanent polarization and coercive electric field comparable to other organic ferroelectrics. The concept is adaptable to other poly(aryleneethynylene)s, promising applications in memory devices, OLEDs, and OPVs.
研究不足
The response time of the ferroelectric property is relatively slow (10-2-10-3 Hz), and the on/off ratio in memory devices is limited to an order of magnitude.
