Ferroelectric-Dielectric Mixed Buffer Layer for Enhanced Electrical Performance of Organic Ferroelectric Memory Transistors
We suggest a facile method to reduce the surface roughness of the ferroelectric polymer insulator to enhance the electrical performance of the ferroelectric field effect memory transistors (FeFET). Ferroelectric-dielectric mixed buffer layer was used to reduce the high surface roughness
of the single layer ferroelectric polymer insulator. The FeFET with mixed buffer bilayer (BL-FeFET) showed more than 25 times higher on-current (3.40 μA) compared with single layer FeFET (130 nA). The BL-FeFET showed enhanced memory retention, higher memory on-off ratio than the
conventional single layer FeFET (SL-FeFET). The enhancement of the electrical performance of the BL-FeFET can be attributed to the smoothening of the rough needle-like grain surface morphology of the ferroelectric polymer insulator in the SL-FeFET. This process of mixed buffer polymer insulator
may provide a technological method for production of high-performance nonvolatile FeFET memory devices.
Keywords: Bilayer; Dielectric; Electrical Property; Ferroelectric; Organic; P(VDF-TrFE); Thin Film
Document Type: Research Article
Affiliations: 1: Department of Creative Convergence Engineering, Hanbat National University, Daejeon, 305–719 Republic of Korea 2: Department of Electronics Engineering, Hanbat National University, Daejeon, 305–719 Republic of Korea
Publication date: 01 August 2019
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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