Characteristics of Single Crystal Field-Effect Transistors with a New Type of Aromatic Hydrocarbon, Picene

Kawai, Nobuyuki; Eguchi, Ritsuko; Goto, Hidenori; Akaike, Kouki; Kaji, Yumiko; Kambe, Takashi; Fujiwara, Akihiko; Kubozono, Yoshihiro

doi:10.1021/jp300052p

Cited by 39 publications

(110 citation statements)

References 29 publications

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“…Furthermore, single crystals of [8] phenacene were grown, as is described in Supplementary Information, and the shape of the crystals (plate-like and transparent) is quite similar to that of other phenacene crystals910, supporting the identity of [8]phenacene. The details of single-crystal preparation and a photograph of a single crystal are provided in Supplementary Information.…”

Section: Resultsmentioning

confidence: 68%

An Extended Phenacene-type Molecule, [8]Phenacene: Synthesis and Transistor Application

Okamoto

Eguchi

Hamao

et al. 2014

Sci Rep

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A new phenacene-type molecule, [8]phenacene, which is an extended zigzag chain of coplanar fused benzene rings, has been synthesised for use in an organic field-effect transistor (FET). The molecule consists of a phenacene core of eight benzene rings, which has a lengthy π-conjugated system. The structure was verified by elemental analysis, solid-state NMR, X-ray diffraction (XRD) pattern, absorption spectrum and photoelectron yield spectroscopy (PYS). This type of molecule is quite interesting, not only as pure chemistry but also for its potential electronics applications. Here we report the physical properties of [8]phenacene and its FET application. An [8]phenacene thin-film FET fabricated with an SiO2 gate dielectric showed clear p-channel characteristics. The highest μ achieved in an [8]phenacene thin-film FET with an SiO2 gate dielectric is 1.74 cm2 V−1 s−1, demonstrating excellent FET characteristics; the average μ was evaluated as 1.2(3) cm2 V−1 s−1. The μ value in the [8]phenacene electric-double-layer FET reached 16.4 cm2 V−1 s−1, which is the highest reported in EDL FETs based on phenacene-type molecules; the average μ was evaluated as 8(5) cm2 V−1 s−1. The μ values recorded in this study show that [8]phenacene is a promising molecule for transistor applications.

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Section: Resultsmentioning

confidence: 68%

An Extended Phenacene-type Molecule, [8]Phenacene: Synthesis and Transistor Application

Okamoto

Eguchi

Hamao

et al. 2014

Sci Rep

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“…Field-effect transistors (FETs) using thin films and single crystals of phenacene-type molecules (extended W-patterned structures of fused benzene rings) have been extensively studied using various gate dielectrics123456789101112131415161718. The highest field-effect mobility ( μ ) reported in these phenacene thin-film FETs is currently 21 cm 2 V −1 s −1 .…”

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confidence: 99%

Transistor Properties of 2,7-Dialkyl-Substituted Phenanthro[2,1-b:7,8-b′]dithiophene

Kubozono

Hyodo

Hamao

et al. 2016

Sci Rep

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A new phenacene-type molecule with five fused aromatic rings was synthesized: 2,7-didodecylphenanthro[2,1-b:7,8-b′]dithiophene ((C12H25)2-i-PDT), with two terminal thiophene rings. Field-effect transistors (FETs) using thin films of this molecule were fabricated using various gate dielectrics, showing p-channel normally-off FET properties with field-effect mobilities (μ) greater than 1 cm2 V−1 s−1. The highest μ value in the thin-film FETs fabricated in this study was 5.4 cm2 V−1 s−1, when a 150 nm-thick ZrO2 gate dielectric was used. This implies that (C12H25)2-i-PDT is very suitable for use in a transistor. Its good FET performance is fully discussed, based on electronic/topological properties and theoretical calculations.

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“…This is the reason why the equilibrium distribution function appears in the expression of the effective self-energy in Eq. (27). Fig.…”

Section: B Effective and Floquet Spectral Functionsmentioning

confidence: 99%

“…Moreover, we consider that Eq. (27) does not depend on the fermionic statistic for we consider a single electron in the band, as assumed in Fröhlich polaron problem [7, 76, and 77]. Within Holstein description of organic molecular crystals [4], an electron that hops onto a molecule excites a vibrational mode which subsequently relaxes after the electron moves away.…”

Section: Weak-coupling Regime a Single Electron Propertiesmentioning

confidence: 99%

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Dynamical control of electron-phonon interactions with high-frequency light

Dutreix¹,

Katsnelson²

2017

Phys. Rev. B

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This work addresses the one-dimensional problem of Bloch electrons when they are rapidly driven by a homogeneous time-periodic light and linearly coupled to vibrational modes. Starting from a generic time-periodic electron-phonon Hamiltonian, we derive a time-independent effective Hamiltonian that describes the stroboscopic dynamics up to the third order in the high-frequency limit. This yields nonequilibrium corrections to the electron-phonon coupling that are controllable dynamically via the driving strength. This shows in particular that local Holstein interactions in equilibrium are corrected by nonlocal Peierls interactions out of equilibrium, as well as by phonon-assisted hopping processes that make the dynamical Wannier-Stark localization of Bloch electrons impossible. Subsequently, we revisit the Holstein polaron problem out of equilibrium in terms of effective Green functions, and specify explicitly how the binding energy and effective mass of the polaron can be controlled dynamically. These tunable properties are reported within the weak-and strong-coupling regimes since both can be visited within the same material when varying the driving strength. This work provides some insight into controllable microscopic mechanisms that may be involved during the multicycle laser irradiations of organic molecular crystals in ultrafast pump-probe experiments, although it should also be suitable for realizations in shaken optical lattices of ultracold atoms.

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Characteristics of Single Crystal Field-Effect Transistors with a New Type of Aromatic Hydrocarbon, Picene

Cited by 39 publications

References 29 publications

An Extended Phenacene-type Molecule, [8]Phenacene: Synthesis and Transistor Application

An Extended Phenacene-type Molecule, [8]Phenacene: Synthesis and Transistor Application

Transistor Properties of 2,7-Dialkyl-Substituted Phenanthro[2,1-b:7,8-b′]dithiophene

Dynamical control of electron-phonon interactions with high-frequency light

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