Presentation Information
[9a-PB4-15]Synthesis of Asymmetric DCNQI Derivatives with Brickwork Packing and Evaluation of Their n Type Transistor Properties
〇Hitomi Kikuma1, Muneyuki Naito2, Kosuke Katagiri2, Shigeru Ikeda3, Atsushi Kimoto3, Tomofumi Kadoya2 (1.Graduate School of Natural Science, Konan Univ., 2.Department of Chemistry, Konan Univ., 3.Department of Environment and Energy Engineering, Konan Univ.)
Keywords:
organic field-effect transistor,n-type tansistor
With the aim of controlling the molecular arrangement by introducing substituents into DCNQI (dicyanoquinonediimine), we synthesized the asymmetric derivative 2-methyl-5-isopropyl-DCNQI. We evaluated its crystal structure and transistor characteristics. Single-crystal analysis revealed that it formed a brickwork arrangement at room temperature. However, the transfer integrals and symmetry were reduced due to the steric effect of the isopropyl group. The mobility of the thin-film transistor was 1.2 × 10-2 cm2/Vs under vacuum and 1.2 × 10-3 cm2/Vs in air.