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Perovskite quantum dots (pQDs) are promising materials for optoelectronic and photocatalytic applications due to their unique optical properties. To enhance charge carrier extraction or injection donor/acceptor molecules can be tethered to…

We introduce a theoretical approach based on scattering theory and total energy methods that treats transport non-linearities, conformational changes and charging effects in molecular wires in a unified way. We apply this approach to…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Eldon Emberly , George Kirczenow

We use the edge of the quantum Hall sample to study the possibility for counter-propagating neutral collective excitations. A novel sample design allows us to independently investigate charge and energy transport along the edge. We…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 E. V. Deviatov , A. Lorke , G. Biasiol , L. Sorba

Radiative charge exchange collisions between a carbon atom C(${}^3$P) and a helium ion He+, both in their ground state, are investigated theoretically. Detailed quantum chemistry calculations are carried out to obtain potential energy…

Atomic Physics · Physics 2017-01-25 James F. Babb , B. M. McLaughlin

Charge-transfer cold Yb$^+$ + Rb collision dynamics is investigated theoretically using high-level {\it ab initio} potential energy curves, dipole moment functions and nonadiabatic coupling matrix elements. Within the scalar-relativistic…

We have recently developed the QTPIE (charge transfer with polarization current equilibration) fluctuating-charge model, a new model with correct dissociation behavior for nonequilibrium geometries. The correct asymptotics originally came…

Chemical Physics · Physics 2010-10-13 Jiahao Chen , Todd J Martinez

The charge transport properties of individual, metallic nitrogen doped, single-walled carbon nanotubes are investigated. It is demonstrated that n-type conduction can be achieved by nitrogen doping. Evidence was obtained by appealing to…

Materials Science · Physics 2009-11-11 V. Krstic , G. L. J. A. Rikken , P. Bernier , S. Roth , M. Glerup

The charge-transfer (CT) together with the polarization energy appears at second and higher orders in symmetry-adapted perturbation theory (SAPT). At present there is no theoretically compelling way of isolating the charge-transfer energy…

Chemical Physics · Physics 2013-08-07 Alston J. Misquitta

The effects of lattice distortion and chemical disorder on charge transport properties of two-terminal zigzag phosphorene nanoribbons (zPNRs), which shows resonant tunneling behavior under an electrical applied bias, are studied. Our…

Mesoscale and Nanoscale Physics · Physics 2018-11-21 Zahra Nourbakhsh , Reza Asgari

We present a low energy-theory for non-linear transport in finite-size interacting single-wall carbon nanotubes. It is based on a microscopic model for the interacting p_z electrons and successive bosonization. We consider weak coupling to…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Leonhard Mayrhofer , Milena Grifoni

We probed the charge transfer interaction between the amine-containing molecules: hydrazine, polyaniline and aminobutyl phosphonic acid, and carbon nanotube field effect transistors (CNTFETs). We successfully converted p-type CNTFETs to…

Materials Science · Physics 2015-07-20 Christian Klinke , Jia Chen , Ali Afzali , Phaedon Avouris

We have calculated several low-lying Charge Transfer (CT) excited-state energies for four non-covalently bound dyads composed of a sulfonated-ZnPc coupled to C60. Our results show that the di- and tri-sulfonated systems yield a CT state as…

Materials Science · Physics 2013-08-12 Marco Olguin , Luis Basurto , Rajendra R. Zope , Tunna Baruah

We study theoretically fundamental Coulomb-correlated complexes: neutral and charged excitons, also known as trions, in transition metal dichalogenides monolayers. We focus on the situation where one of the electrons occupies excited,…

Mesoscale and Nanoscale Physics · Physics 2023-03-23 M. A. Semina , J. V. Mamedov , M. M. Glazov

Interaction of single-walled carbon nanotubes with electron donor and acceptor molecules causes significant changes in the electronic and Raman spectra, the relative proportion of the metallic species increasing on electron donation through…

Materials Science · Physics 2008-05-29 Rakesh Voggu , Chandra Sekhar Rout , Aaron D. Franklin , Timothy S. Fisher , C. N. R. Rao

Motivated by recent experiments, we have studied transport behavior of coupled quantum dot systems in the Coulomb blockade regime using the master (rate) equation approach. We explore how electron-electron interactions in a donor-acceptor…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Prakash Parida , S Lakshmi , Swapan K Pati

Experimental charge exchange and energy loss data for the transmission of slow highly charged Xe ions through ultra-thin polymeric carbon membranes are presented. Surprisingly, two distinct exit charge state distributions accompanied by…

We study transport properties of a strongly correlated monoatomic chain coupled to metallic leads. Our system is described by tight binding Hubbard-like model in the limit of strong on-site electron-electron interactions in the wire. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Krawiec , T. Kwapinski

We have studied the electronic structure of the Ni triangular lattice in NiGa$_2$S$_4$ using photoemission spectroscopy and subsequent model calculations. The cluster-model analysis of the Ni 2$p$ core-level spectrum shows that the S 3$p$…

Strongly Correlated Electrons · Physics 2009-11-13 K. Takubo , T. Mizokawa , J. -Y. Son , Y. Nambu , K. Onuma , H. Tonomura , S. Nakatsuji , Y. Maeno

We perform density functional theory plus dynamical mean field theory calculations to investi- gate internal charge transfer in an artificial superlattice composed of alternating layers of vanadate and manganite perovskite and…

Materials Science · Physics 2015-06-22 Hanghui Chen , Hyowon Park , Andrew J. Millis , Chris A. Marianetti

We investigate the distribution of the electron density and the potential in a quantum wire coupled to reservoirs, treating this structure as a unified quantum system and taking into account the Coulomb interaction of electrons. The…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 V. A. Sablikov , S. V. Polyakov , M. Buttiker
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