The 66th JSAP Spring Meeting, 2019

Presentation information

Oral presentation

12 Organic Molecules and Bioelectronics » 12.4 Organic light-emitting devices and organic transistors

[10a-S222-1~12] 12.4 Organic light-emitting devices and organic transistors

Sun. Mar 10, 2019 9:00 AM - 12:15 PM S222 (S222)

Takehiko Mori(Tokyo Tech), Toshihiro Okamoto(The University of Tokyo)

10:00 AM - 10:15 AM

[10a-S222-5] Transistor characteristics of charge-transfer complexes of acceptors derived from birhodanines

Shuxiang Fan1, Yasuhiro Kiyota1, Kodai Iijima1, Suho Ryo1, Tadashi Kawamoto1, Yann Le Gal2, Dominique Lorcy2, Takehiko Mori1 (1.TokyoTech, 2.Univ. of Rennes 1)

Keywords:Organic Field-Effect Transitor, Charge-transfer complex

Recently, we have reported that birhodanine, 3,3'-dialkyl-5,5'-bithiazolidinyli dene-2,4,2',4'-tetrathiones (SS-R), is a n-channel transistor material with excellent air stability. In view of the strong acceptor ability, in the present work, we have attempted to prepare the charge-transfer complexes. A ferrocene complex of SS-Et as well as ferrocene and tetramethyltetrathiafulvalene complexes of the dicyano methylene derivative have been reported;these combinations afford mixed-stack structures.
The present work reports crystal structures of SS-Et and SS-Pr complexes of perylene, coronene, and pyrene. These cocrystals have mixed-stack columns, though the details depend on the alkyl chains and donors. Several cocrystals exhibit electron-transporting transistor properties, which are discussed in view of the calculations of the transfer integrals.