title: Microscopic signature of metallic state in semicrystalline conjugated polymers doped with fluoroalkylsilane molecules.
abstract: Fluoroalkylsilane (FTS) acts as an efficient p-type dopant for organic semiconductors. FTS-doped films of the semicrystalline PBTTT polymer exhibit relatively high conductivities. We demonstrate that highly doped PBTTT films exhibit a metallic nature with clear Pauli paramagnetism as observed microscopically using electron spin resonance spectroscopy. The metallic state is realized within crystalline grains, as confirmed from the anisotropy of the ESR signal.
authors: Department of Applied Physics, Nagoya University, Chikusa, Nagoya, 464-8603, Japan.
authors: Hisaaki
authors: H
authors: Tanaka
authors: Masataka
authors: M
authors: Hirate
authors: Shun
authors: S
authors: Watanabe
authors: Shin-Ichi
authors: S
authors: Kuroda
keywords: chemical doping; conjugated polymers; electron spin resonance; polarons; self-assembled monolayer