Generation of Maxwell displacement current across an azobenzene monolayer by photoisomerization

Iwamoto, Mitsumasa; Majima, Yutaka; Naruse, Haruhiko; Noguchi, Tetsuya; Fuwa, Hiromasa

doi:10.1038/353645a0

Cited by 131 publications

(56 citation statements)

References 14 publications

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“…[2] is identical to the induced charge Q 1 given by Eq. [1], and the second term represents a sinusoidally modulated signal proportional to the induced charge Q 1 (t).…”

Section: Maxwell Displacement Current (Mdc) Measurement Was Developed Bymentioning

confidence: 91%

“…Equations [2] and [3] are essential in the analysis of the ac MDC method. The first term corresponds to the MDC I (t) measured by the dc MDC method.…”

Section: Maxwell Displacement Current (Mdc) Measurement Was Developed Bymentioning

confidence: 99%

“…Iwamoto (1)(2)(3)(4) to investigate the physicochemical properties of monolayers deposited on the water surface. The deposited monolayers between two barriers is uniformly compressed, and the MDC is generated due to the orientational change of polar molecules.…”

Section: Maxwell Displacement Current (Mdc) Measurement Was Developed Bymentioning

confidence: 99%

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Charge Measurement in the Modified Maxwell Displacement Current Method

Kielczyński

Iwamoto

2000

Journal of Colloid and Interface Science

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“…[2] is identical to the induced charge Q 1 given by Eq. [1], and the second term represents a sinusoidally modulated signal proportional to the induced charge Q 1 (t).…”

Section: Maxwell Displacement Current (Mdc) Measurement Was Developed Bymentioning

confidence: 91%

“…Equations [2] and [3] are essential in the analysis of the ac MDC method. The first term corresponds to the MDC I (t) measured by the dc MDC method.…”

Section: Maxwell Displacement Current (Mdc) Measurement Was Developed Bymentioning

confidence: 99%

See 1 more Smart Citation

Charge Measurement in the Modified Maxwell Displacement Current Method

Kielczyński

Iwamoto

2000

Journal of Colloid and Interface Science

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“…It is convenient to investigate, for instance, the electrical properties of monolayers of macromolecules floating on water surfaces (such as Langmuir-Blodgett films) by the surface potential method with which the Maxwell displacement current is measured [16,17]. The induced charge Q at the electrode is directly proportional to the vertical component m z of the dipole moment of the molecule, i.e., for uniaxial polar molecules…”

Section: Generation Of Maxwell Displacement Current (Mdc)mentioning

confidence: 99%

“…Thus in this context the tilt angle distribution of the interface plays an important role. Other experiments consider orientational fluctuations in monolayers or thin multilayer films of non-spherical particles adsorbed on fluid interfaces [16,17,18,19,20]. These orientational fluctuations are determined by fixed relations between the orientations of the adsorbed molecules and the fluctuating local orientations of the supporting fluid interface.…”

Section: Introductionmentioning

confidence: 99%

Local orientations of fluctuating fluid interfaces

Mecke

Dietrich

2005

The Journal of Chemical Physics

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Thermal fluctuations cause the local normal vectors of fluid interfaces to deviate from the vertical direction defined by the flat mean interface position. This leads to a nonzero mean value of the corresponding polar tilt angle which renders a characterization of the thermal state of an interface. Based on the concept of an effective interface Hamiltonian we determine the variances of the local interface position and of its lateral derivatives. This leads to the probability distribution functions for the metric of the interface and for the tilt angle which allows us to calculate its mean value and its mean square deviation. We compare the temperature dependences of these quantities as predicted by the simple capillary wave model, by an improved phenomenological model, and by the microscopic effective interface Hamiltonian derived from density functional theory. The mean tilt angle discriminates clearly between these theoretical approaches and emphasizes the importance of the variation of the surface tension at small wave lengths. Also the tilt angle two-point correlation function is determined which renders an additional structural characterization of interfacial fluctuations. Various experimental accesses to measure the local orientational fluctuations are discussed.

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Functionalized langmuir–blodgett films—toward the construction of molecular devices

Tachibana

Matsumoto

1993

Advanced Materials

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Control of the orientation of component molecules in Langmuir–Blodgett (LB) films is important for their use in molecular electronics. Cyclodextrins can be given a particular orientation at the air‐water interface by introducing long alkyl chains through the amino, sulfinyl, and sulfide groups (see Figure). This article reviews progress in molecular‐component and supramolecular LB films and photochemical switching systems constructed from them.

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Generation of Maxwell displacement current across an azobenzene monolayer by photoisomerization

Cited by 131 publications

References 14 publications

Charge Measurement in the Modified Maxwell Displacement Current Method

Charge Measurement in the Modified Maxwell Displacement Current Method

Local orientations of fluctuating fluid interfaces

Functionalized langmuir–blodgett films—toward the construction of molecular devices

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