Novel semiconducting quinone for air-stable n-type organic field-effect transistors.
Quinones are promising moieties for n-type organic semiconductors due to their high electron affinity. Benzo[1,2-b:4,5-b']dithiophene-4,8-dione derivative with a quinone moiety have been synthesized, characterized, and used as active layer of organic field-effect transistors (OFETs). This derivative has deep LUMO level, leading to efficient charge-carrier injection and air stability. In addition, it forms a columnar structure with efficient intermolecular pi-pi and horizontal direction interactions, leading to high electron mobilities. In fact, OFET devices fabricated here showed good n-type characteristics, where the electron mobility was 0.15 cm(2) V(-1) s(-1) under vacuum conditions and above 0.1 cm(2) V(-1) s(-1) in air.
Mamada
Masashi
M
Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Midori-ku, Yokohama 226-8502, Japan.
Kumaki
Daisuke
D
Nishida
Jun-ichi
J
Tokito
Shizuo
S
Yamashita
Yoshiro
Y
D000388:Air; D016227:Benzoquinones / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing; D009930:Organic Chemicals / Q000737:chemistry*; D012666:Semiconductors; D014173:Transistors, Electronic
D016227:Benzoquinones; D009930:Organic Chemicals; C004532:quinone