Localised electronic states in semiconductor superlattices

M Stęślicka, R Kucharczyk, A Akjouj… - Surface science …, 2002 - Elsevier
The existence and properties of localised electronic states are described in binary (two
layers per period) and polytype (multiple layers per period) semiconductor superlattices …

Tuning of exciton type by environmental screening

ILC Lima, MV Milošević, FM Peeters, A Chaves - Physical Review B, 2023 - APS
We theoretically investigate the binding energy and electron-hole (eh) overlap of excitonic
states confined at the interface between two-dimensional materials with type-II band …

Intermixing during growth of InAs self-assembled quantum dots in InP: A photoluminescence and tight-binding investigation

C Dion, P Desjardins, N Shtinkov, MD Robertson… - Physical Review B …, 2008 - APS
Atomic intermixing during the growth of self-assembled InAs quantum dots (QDs) in InP
(001) by chemical beam epitaxy (CBE) can result in the formation of graded interfaces or …

Electronic states of ultrathin InAs/InP (001) quantum wells: A tight-binding study of the effects of band offset, strain, and intermixing

N Shtinkov, P Desjardins, RA Masut - Physical Review B, 2002 - APS
We investigate theoretically the electronic structure of strained ultrathin InAs/InP (001)
quantum wells (QWs), using the semiempirical sp 3 d 5 s* nearest-neighbors tight-binding …

Electronic structure and optical properties of AlAs/GaAs superlattices containing embedded GaAs quantum wells with abrupt and graded interfaces Frontal …

V Donchev, K Germanova, N Shtinkov… - … Publishers, Inc., New …, 2006 - books.google.com
We present a detailed theoretical, numerical and photoluminescence (PL) study of the
electronic structure and optical properties of short-period AlAs/GaAs (001) superlattices …

Raman study of optical phonons in ultrathin single strained quantum wells

A Lanacer, JF Chabot, M Cote, R Leonelli… - Physical Review B …, 2005 - APS
By means of Raman scattering, photoluminescence, and x-ray diffraction experiments, we
have studied a series of ultrathin In As∕ In P single quantum wells grown with nominal well …

[PDF][PDF] Surface photovoltage spectroscopy of GaAs quantum wells embedded in AlAs/GaAs superlattices

T Ivanov, K Kirilov, V Donchev, K Germanova - this volume, 2006 - researchgate.net
We have studied GaAs quantum wells (QWs) embedded in (AlAs) 4/(GaAs) 8 superlattices
(SLs) by means of surface photovoltage (SPV) spectroscopy, taking advantage of its high …

[PDF][PDF] Surface photovoltage investigation of GaAs quantum wells

T Ivanov, V Donchev, K Kirilov… - … of optoelectronics and …, 2007 - researchgate.net
The SPV method is a powerful non-destructive and contactless characterization technique,
which has been used to study the electronic properties of a wide range of semiconductor …

[PDF][PDF] OPTICAL PROPERTIES AND INTERFACE QUALITY OF GaAs QUANTUM WELLS EMBEDDED IN SHORT-PERIOD AlAs/GaAs SUPERLATTICES

V DONCHEV, K GERMANOVA… - Annuaire de l'Université …, 2005 - researchgate.net
A detailed optical study of GaAs quantum wells embedded in AlAs/GaAs superlattices is
presented. Photoluminescence (PL) measurements are carried out on a number of samples …

[PDF][PDF] Electron states energies and wave functions of V-shaped quantum wires with graded interfaces

K Kirilov, V Donchev, M Saraydarov… - … of optoelectronics and …, 2007 - researchgate.net
The modification of the electronic states and optical properties of quantum nanostructures by
means of purposely induced interface grading has attracted a growing interest during the …