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Recent Development of Organic Field-Effect Transistors Based on Molecule Structure

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Physical Chemistry and Chemical Physics".

Deadline for manuscript submissions: closed (31 January 2021) | Viewed by 2684

Special Issue Editor


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Guest Editor
Research Institute for Interdisciplinary Science, Okayama University, Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
Interests: organic synthesis; activation of unreactive chemical bonds; isolation and determination of the structures

Special Issue Information

Dear Colleagues,

Since novel π-conjugate aromatic compounds and derivatives have been utilized in various fields of organic electronics such as organic field-effect transistors (OFETs) and organic photovoltaics (OPVs), the recent development of synthetic methodology and the evaluation of their physicochemical properties of these compounds have attracted much attention in materials science.

The Special Issue entitled "Recent Development of Organic Field-Effect Transistors Based on Molecular Structure" will open a new window for researchers to represent new findings and ideas on the new synthetic routes, properties, and applications of novel π-conjugate compounds and derivatives to the materials toward organic field-effect transistors based on their molecule structures.

This Special Issue welcomes the submission of original research papers or comprehensive reviews that demonstrate or summarize significant advances in novel π-conjugate aromatic compounds and derivatives related to the synthesis, functionalization, physicochemical properties, and application to organic field-effect transistors.

Prof. Yasushi Nishihara
Guest Editor

Manuscript Submission Information

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Keywords

  • organic field-effect transistors
  • π-conjugate aromatic compounds
  • fused compounds
  • molecular structure
  • mobility
  • semiconductors
  • benzene
  • chalcogenophene
  • molecular packing

Published Papers (1 paper)

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Research

16 pages, 2971 KiB  
Article
Synthesis of Dinaphtho[2,3-d:2’,3’-d’]anthra[1,2-b:5,6-b’]dithiophene (DNADT) Derivatives: Effect of Alkyl Chains on Transistor Properties
by Takumi Ishida, Yuta Sawanaka, Ryota Toyama, Zhenfei Ji, Hiroki Mori and Yasushi Nishihara
Int. J. Mol. Sci. 2020, 21(7), 2447; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21072447 - 01 Apr 2020
Cited by 3 | Viewed by 2366
Abstract
To investigate organic field-effect transistor (OFET) properties, a new thienoacene-type molecule, 4,14-dihexyldinaphtho[2,3-d:2’,3’-d’]anthra[1,2-b:5,6-b’]dithiophene (C6-DNADT), consisting of π-conjugated nine aromatic rings and two hexyl chains along the longitudinal molecular axis has been successfully synthesized by sequential reactions, [...] Read more.
To investigate organic field-effect transistor (OFET) properties, a new thienoacene-type molecule, 4,14-dihexyldinaphtho[2,3-d:2’,3’-d’]anthra[1,2-b:5,6-b’]dithiophene (C6-DNADT), consisting of π-conjugated nine aromatic rings and two hexyl chains along the longitudinal molecular axis has been successfully synthesized by sequential reactions, including Negishi coupling, epoxidation, and cycloaromatization. The fabricated OFET using thin films of C6-DNADT exhibited p-channel FET properties with field-effect mobilities (µ) of up to 2.6 × 10−2 cm2 V−1 s−1, which is ca. three times lower than that of the parent DNADT molecule (8.5 × 10−2 cm2 V−1 s−1). Although this result implies that the installation of relatively short alkyl chains into the DNADT core is not suitable for transistor application, the origins for the FET performance obtained in this work is fully discussed, based on theoretical calculations and solid-state structure of C6-DNADT by grazing incidence wide-angle X-ray scattering (GIWAXS) and atomic force microscopy (AFM) analyses. The results obtained in this study disclose the effect of alkyl chains introduced onto the molecule on transistor characteristics. Full article
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