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Cover Picture: Highly Sensitive, Photocontrolled, Organic Thin‐Film Transistors Using Soluble Star‐shaped Conjugated Molecules (Adv. Funct. Mater. 19/2008)
Author(s) -
Cho Mi Yeon,
Kim Su Jin,
Han Yoon Deok,
Park Dong Hyuk,
Kim Kyung Hwan,
Choi Dong Hoon,
Joo Jinsoo
Publication year - 2008
Publication title -
advanced functional materials
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200890076
Subject(s) - materials science , conjugated system , photosensitivity , benzene , optoelectronics , thin film transistor , molecule , transistor , photochemistry , nanotechnology , polymer , organic chemistry , composite material , layer (electronics) , chemistry , physics , quantum mechanics , voltage
Highly photosensitive characteristics of organic thin film transistors (OTFTs) are reported for soluble star‐shaped oligothiophenes with four π‐conjugated arms. Organic phototransistors (OPTs) using 4(HPBT)‐benzene exhibited high photosensitivity even at low optical powers. Using a high ratio of on‐and‐off current switching with low optical power, a reproducible memory operation for the OPTs is performed. The cover image shows photosensitive OTFTs using soluble star‐shaped 4(HPBT)‐benzene molecules, as reported on p. 2905 by Cho and co‐workers.