Choi Young Jin, Kim Jihyun, Kim Min Je, Ryu Hwa Sook, Woo Han Young, Cho Jeong Ho, Kang Joohoon
Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Korea.
School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea.
Micromachines (Basel). 2021 Mar 12;12(3):301. doi: 10.3390/mi12030301.
Donor-acceptor-type organic semiconductor molecules are of great interest for potential organic field-effect transistor applications with ambipolar characteristics and non-volatile memory applications. Here, we synthesized an organic semiconductor, PDPPT-TT, and directly utilized it in both field-effect transistor and non-volatile memory applications. As-synthesized PDPPT-TT was simply spin-coated on a substrate for the device fabrications. The PDPPT-TT based field-effect transistor showed ambipolar electrical transfer characteristics. Furthermore, a gold nanoparticle-embedded dielectric layer was used as a charge trapping layer for the non-volatile memory device applications. The non-volatile memory device showed clear memory window formation as applied gate voltage increases, and electrical stability was evaluated by performing retention and cycling tests. In summary, we demonstrate that a donor-acceptor-type organic semiconductor molecule shows great potential for ambipolar field-effect transistors and non-volatile memory device applications as an important class of materials.
供体-受体型有机半导体分子对于具有双极性特性的潜在有机场效应晶体管应用和非易失性存储器应用具有极大的吸引力。在此，我们合成了一种有机半导体PDPPT-TT，并将其直接用于场效应晶体管和非易失性存储器应用中。合成后的PDPPT-TT通过简单的旋涂法涂覆在基板上用于器件制造。基于PDPPT-TT的场效应晶体管表现出双极性电传输特性。此外，嵌入金纳米颗粒的介电层被用作非易失性存储器件应用的电荷俘获层。随着施加的栅极电压增加，非易失性存储器件显示出清晰的存储窗口形成，并通过进行保持和循环测试来评估电稳定性。总之，我们证明了供体-受体型有机半导体分子作为一类重要材料，在双极性场效应晶体管和非易失性存储器件应用中具有巨大潜力。
