Temperature-dependent characteristics of n-channel transistors based on 5,5 '-bithiazolidinylidene-2,4,2 ',4 '-tetrathiones

Suho Ryo (1) , Dongho Yoo (1) , Kodai Iijima (1) , Ryonosuke Sato (1) , Yann Le Gal (2) , Dominique Lorcy (2) , Takehiko Mori (1)

1 TITECH - Tokyo Institute of Technology [Tokyo]
2 ISCR - Institut des Sciences Chimiques de Rennes

Crystal structures and temperature-dependent transistor properties of newly prepared pentyl and hexyl derivatives of the title compounds are investigated. Similarly to the propyl derivative, the pentyl derivative makes air-stable n-channel transistors in the form of evaporated films as well as single crystals, and the large as-grown single crystals obtained by the solvent-vapor annealing show mobility exceeding 1 cm 2 V −1 s −1. Mobility in the intercolumnar direction is comparable to the columnar direction, reflecting the two-dimensional S−S network and transfer integrals. The sharp rise of the transfer curve is maintained down to low temperatures, indicating absence of deep traps and a comparatively small number of total traps.

Domains: Chemical Sciences; Material chemistry; Engineering Sciences [physics]; Electronics

Suho Ryo, Dongho Yoo, Kodai Iijima, Ryonosuke Sato, Yann Le Gal, et al.. Temperature-dependent characteristics of n-channel transistors based on 5,5 '-bithiazolidinylidene-2,4,2 ',4 '-tetrathiones. New Journal of Chemistry, 2019, 43 (30), pp.11865-11870. ⟨10.1039/c9nj02731a⟩. ⟨hal-02278405⟩