Ambipolar, high performance, acene-based organic thin film transistors.
We present a high performance, ambipolar organic field-effect transistor composed of a single material. Ambipolar molecules are rare, and they can enable low-power complementary-like circuits. This low band gap, asymmetric linear acene contains electron-withdrawing fluorine atoms, which lower the molecular orbital energies, allowing the injection of electrons. While hole and electron mobilities of up to 0.071 and 0.37 cm2/V.s, respectively, are reported on devices measured in nitrogen, hole mobilities of up to 0.12 cm2/V.s were found in ambient, with electron transport quenched. These devices were fabricated on octadecyltrimethoxysilane-treated surfaces at a substrate temperature of 60 degrees C.
Tang
Ming L
ML
Department of Chemistry, Stanford University, Stanford, California 94305, USA.
Reichardt
Anna D
AD
Miyaki
Nobuyuki
N
Stoltenberg
Randall M
RM
Bao
Zhenan
Z