نتایج جستجو برای: induced dipole potential

تعداد نتایج: 1961521  

2007
Xi Zhang Zhenli Zhang Sharon C. Glotzer

Recent experiments have demonstrated that nanoparticles with dipoles can self-assemble into interesting onedimensional and two-dimensional nanostructures. In particular, nanocubes with dipoles are found to form straight nanowires and nanorings with potential applications for nanodevices. In this paper, we use a minimal model to study dipole-induced self-assembly of nanocubes with varying dipole...

2002
V. Bulovic

Emission and absorption spectra of many organic dyes in liquid solutions depend on the local electric fields generated by the surrounding polar solvent molecules. This “solvation effect” is a result of intermolecular solutesolvent interaction forces (such as dipole-dipole or dipole-induced dipole) that tend to stretch molecular bonds and shift charge distribution on molecules, altering the ener...

Journal: :The journal of physical chemistry. B 2005
Sven Rühle Miri Greenshtein S-G Chen Alexandra Merson Hillel Pizem Chaim S Sukenik David Cahen Arie Zaban

Molecular modification of dye-sensitized, mesoporous TiO2 electrodes changes their electronic properties. We show that the open-circuit voltage (V(oc)) of dye-sensitized solar cells varies linearly with the dipole moment of coadsorbed phosphonic, benzoic, and dicarboxylic acid derivatives. A similar dependence is observed for the short-circuit current density (I(sc)). Photovoltage spectroscopy ...

2006
Hai-Xia Cao Cheong Lo Winnie W. Y. Chung

Electromechanical properties of ferroelectric thin films are investigated using a two-dimensional four-state Potts model and Monte Carlo simulation. In this model, the mechanical energy density induced by strains of individual cells is included in the system Hamiltonian, in addition to the contributions from dipole-dipole and electric-field-dipole couplings. Moreover, the dipole of each individ...

2013
H. Moraal

The kinetic theories of the electric and magnetic Senftleben-Beenakker effects and of non­ resonant absorption in polar symmetric top gases are reviewed, using an expansion of the distribu­ tion function-density m atrix which includes the dipole moment operator juQ . General expressions are given for the elastic parts of all collision integrals coupling two purely angular momentum de­ pendent t...

Journal: :The Journal of chemical physics 2008
X Huang Bastiaan J Braams Joel M Bowman Ross E A Kelly Jonathan Tennyson Gerrit C Groenenboom Ad van der Avoird

We report a new full-dimensional potential energy surface (PES) for the water dimer, based on fitting energies at roughly 30,000 configurations obtained with the coupled-cluster single and double, and perturbative treatment of triple excitations method using an augmented, correlation consistent, polarized triple zeta basis set. A global dipole moment surface based on Moller-Plesset perturbation...

2011
Loredana Mereuta Alina Asandei Tudor Luchian

While it is accepted that biomembrane asymmetry is generated by proteins and phospholipids distribution, little is known about how electric changes manifested in a monolayer influence functional properties of proteins localized on the opposite leaflet. Herein we used single-molecule electrophysiology and investigated how asymmetric changes in the electrostatics of an artificial lipid membrane m...

2002
Kristen A. Fichthorn Robert M. Ziff

We have developed a “two-site” lattice gas model which provides a theoretical framework for understanding adsorption equilibrium in systems for which the potential energy surface is inherently heterogeneous in terms of both adsorbate-adsorbate and adsorbate-potential energy surface interactions and also entropic factors associated with the existence of two types of sites. Utilizing this general...

2012
F. Monticone C. Argyropoulos A. Alù

We discuss the rich scattering features offered by thin and thick plasmonic layers covering dielectric nanoparticles and their potential optical applications. The frequency position of scattering dips and peaks may be controlled to a large degree using plasmonic layers, which may dramatically vary the total scattering signature in the frequency range of interest. We show that complex and exotic...

2007
Emil Avsar

Small-x evolution in QCD is conveniently described by Mueller’s dipole model which, however, does not include saturation effects in a way consistent with boost invariance. In this paper we first show that the recently studied zero and one dimensional toy models exhibiting saturation and explicit boost invariance can be interpreted in terms positive definite k → k + 1 dipole vertices. Such k → k...

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