Structural analysis of intercalation compounds of pentacene

Takayoshi Ito; Tadaoki Mitani; Taishi Takenobu; Yoshihiro Iwasa

doi:10.1016/j.jpcs.2003.10.039

Structural analysis of intercalation compounds of pentacene

Takayoshi Ito, Tadaoki Mitani, Taishi Takenobu, Yoshihiro Iwasa

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

Pentacene is a well known organic semiconductor because of its high mobility in the field-effect transistor devices, and also because film conductivity can be dramatically increased by electron and hole doping. For chemical and structural identification of the conducting phase, we carried out an intercalation experiment of pentacene with iodine at various iodine/ pentacene ratios. X-ray powder diffraction measurements revealed that there are two stable phases with different iodine concentrations. In the intermediate intercalation phase with the concentration of (pentacene)I₂ and high conductivity, I₃ ^- ions are inserted between the neighboring layers of pentacene. The saturation phase with higher iodine concentration is formed mainly of I₅ ^-, associated with a significant lattice expansion.

Original language	English
Pages (from-to)	609-613
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	65
Issue number	2-3
DOIs	https://doi.org/10.1016/j.jpcs.2003.10.039
Publication status	Published - 2004 Feb
Externally published	Yes

Keywords

A. Organic compounds
B. Chemical synthesis
C. Raman spectroscopy
C. X-ray diffraction
D. Crystal structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Ito, T., Mitani, T., Takenobu, T., & Iwasa, Y. (2004). Structural analysis of intercalation compounds of pentacene. Journal of Physics and Chemistry of Solids, 65(2-3), 609-613. https://doi.org/10.1016/j.jpcs.2003.10.039

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abstract = "Pentacene is a well known organic semiconductor because of its high mobility in the field-effect transistor devices, and also because film conductivity can be dramatically increased by electron and hole doping. For chemical and structural identification of the conducting phase, we carried out an intercalation experiment of pentacene with iodine at various iodine/ pentacene ratios. X-ray powder diffraction measurements revealed that there are two stable phases with different iodine concentrations. In the intermediate intercalation phase with the concentration of (pentacene)I2 and high conductivity, I3 - ions are inserted between the neighboring layers of pentacene. The saturation phase with higher iodine concentration is formed mainly of I5 -, associated with a significant lattice expansion.",

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AU - Mitani, Tadaoki

AU - Takenobu, Taishi

AU - Iwasa, Yoshihiro

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N2 - Pentacene is a well known organic semiconductor because of its high mobility in the field-effect transistor devices, and also because film conductivity can be dramatically increased by electron and hole doping. For chemical and structural identification of the conducting phase, we carried out an intercalation experiment of pentacene with iodine at various iodine/ pentacene ratios. X-ray powder diffraction measurements revealed that there are two stable phases with different iodine concentrations. In the intermediate intercalation phase with the concentration of (pentacene)I2 and high conductivity, I3 - ions are inserted between the neighboring layers of pentacene. The saturation phase with higher iodine concentration is formed mainly of I5 -, associated with a significant lattice expansion.

AB - Pentacene is a well known organic semiconductor because of its high mobility in the field-effect transistor devices, and also because film conductivity can be dramatically increased by electron and hole doping. For chemical and structural identification of the conducting phase, we carried out an intercalation experiment of pentacene with iodine at various iodine/ pentacene ratios. X-ray powder diffraction measurements revealed that there are two stable phases with different iodine concentrations. In the intermediate intercalation phase with the concentration of (pentacene)I2 and high conductivity, I3 - ions are inserted between the neighboring layers of pentacene. The saturation phase with higher iodine concentration is formed mainly of I5 -, associated with a significant lattice expansion.

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