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20 August 2020 Influence of structural variations in diketopyrrolopyrrole-based field-effect transistors
Suchismita Guha
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Proceedings Volume 11476, Organic and Hybrid Field-Effect Transistors XIX; 1147608 (2020) https://doi.org/10.1117/12.2567495
Event: SPIE Organic Photonics + Electronics, 2020, Online Only
Abstract
Both the semiconductor-dielectric interface and the presence of polymorphs in the semiconducting layer of an organic field-effect transistor (FET) dictate charge transport. Grazing incidence X-ray diffraction (GIXRD) from a side-chain-substituted thiophene DPP monomer (Ph-TDPP-Ph) reveal the presence of two triclinic phases. The FET carrier mobilities change by orders of magnitude depending on the ratio of the two triclinic phases. We further demonstrate the prospect of enhancing device performance of a DPP copolymer-based FET by texture poling of a ferroelectric dielectric layer. Such devices in conjunction with n-type sol-gel processed ZnO FET are promising in voltage inverter circuits.
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Suchismita Guha "Influence of structural variations in diketopyrrolopyrrole-based field-effect transistors", Proc. SPIE 11476, Organic and Hybrid Field-Effect Transistors XIX, 1147608 (20 August 2020); https://doi.org/10.1117/12.2567495
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KEYWORDS
Field effect transistors
Transistors
Interfaces
N-type semiconductors
Semiconductors
Crystals
Molecules
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