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Latest Articles

Near-band-edge exciton polarization change in ZnO nanowires

Zaiping Zeng, Alexia Petoni, Christos S. Garoufalis, Sotirios Baskoutas and Gabriel Bester

Phys. Chem Chem. Phys.17 (2) 1197-1203 (2015)


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Linear and nonlinear optical susceptibilities in a laterally coupled quantum-dot-quantum-ring system

Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas

Physics Letters A 378, 2713 (2014)

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New insights in the excitonic emission of ZnS colloidal quantum dots

Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas

The Journal of Physical Chemistry C 118, 10502 (2014)

 

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Competition effects of electric and magnetic fields on impurity binding energy in a disc-shaped quantum dot in the presence of pressure and temperature

Zaiping Zeng, George Gorgolis, Christos S. Garoufalis, Sotirios Baskoutas

Science of Advanced Materials 6, 586 (2014)

 

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Linear and nonlinear optical properties of ZnO/ZnS and ZnS/ZnO core shell quantum dots: Effects of shell thickness, impurity, and dielectric environment

Zaiping Zeng, Christos S. Garoufalis, Andreas F. Terzis and Sotirios Baskoutas

J. Appl. Phys. 114, 023510 (2013)

 

     

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Visible-light-driven photocatalytic and chemical sensing properties of SnS2 nanoflakes

 

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Electronic and optical properties of ZnO quantum dots under hydrostatic pressure

 

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Optical susceptibilities in singly charged ZnO colloidal quantum dots embedded in different dielectric matrices

Zaiping Zeng, Emmanuel Paspalakis, Christos S. Garoufalis, Andreas F. Terzis, and Sotirios Baskoutas
 

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Tuning of the Optical Emission Polarization of ZnO Nanorods by an Applied Hydrostatic Pressure

Sotirios Baskoutas, Zaiping Zeng, Christos S. Garoufalis and Gabriel Bester 

J. Phys. Chem. C, 2012, 116 (50), pp 26592–26597

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POTENTIAL MORPHING METHOD (PMM)

 The code is available on request (contact Prof Dr. S. Baskoutas This email address is being protected from spambots. You need JavaScript enabled to view it. )

 

Potential Morphing Method (PMM) is a new method which has been developed for the quantum-mechanical determination of the eigenstates and eigenvalues of a particle in a potential of general shape. It is based on the quantum adiabatic theorem that concerns the dynamic evolution of quantum mechanical systems and states that if the Hamiltonian of the system varies slowly with time, then the n th eigenstate of the initial Hamiltonian will be carried into the n th eigenstate of the final Hamiltonian. For the application of this method any well-known reference system is needed.

"Exact Numerical Solution of Schrödinger's equation for a particle in an interaction potential of general shape" 
M. Rieth, W. Schommers, S. Baskoutas, Int. J. Mod. Phys. B 16, 4081 (2002).

 

The PMM method has been applied for the estimation of structural properties of nanomaterials such as quantum wells, quantum wires and quantum dots.

For example PMM method has already been applied for the calculation of:

Size Dependent Band Gap of various Colloidal Quantum Dots.

In this case introducing the Hartee-Fock approximation the exciton energy is estimated in the effective mass approximation.

The method has shown good results for wide band gap semiconductor quantum dots.
"Size-dependent band gap of colloidal quantum dots"
S. Baskoutas, A. F. Terzis, Journal of Applied Physics 99, 013708 (2006).

and for narrow band gap semiconductor quantum dots.
"Size-Dependent Exciton Energy of Narrow Band Gap Colloidal Quantum Dots in the Finite Depth Square-Well Effective Mass Approximation"
S. Baskoutas, A. F. Terzis, W. Schommers, Journal of Computational and Theoretical Nanoscience 3, 269 (2006).

 

J. Phys. D: Appl. Phys. 45 235102

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Phys. Letters A, Volume 376, Issues 42–43, Pages 2712–2716

 

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Tuning the binding energy of surface impurities in cylindrical GaAs/AlGaAs quantum dots by a tilted magnetic field

Zeng, Z.Garoufalis, C.S.Baskoutas, S. Terzis, A.F. 

J. Appl. Phys. 112, 064326 (2012)

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Linear and nonlinear optical absorption coefficients in inverse parabolic quantum wells under static external electric field

S. Baskoutas, C. Garoufalis, A. F. Terzis

Eur. Phys. J. B 84, 241-247 (2011)

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