Hysteresis Behavior of the Donor-Acceptor-Type Ambipolar Semiconductor for Non-Volatile Memory Applications

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-ef...

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Bibliographic Details
Published in:Micromachines (Basel) 2021-03, Vol.12 (3), p.301
Main Authors: Choi, Young Jin, Kim, Jihyun, Kim, Min Je, Ryu, Hwa Sook, Woo, Han Young, Cho, Jeong Ho, Kang, Joohoon
Format: Article
Language:English
Subjects:
ambipolar field-effect transistors
charge trapping
Communication
donor–acceptor-type molecules
non-volatile memory
organic semiconductors
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Summary: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.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi12030301