The hydrostatic pressure and electric field effects on the normalized binding energy of hydrogenic impurity in a GaAs/AlAs spherical quantum dot

Dane, C.; Akbaş, Halide; Guleroglu, A.; Minez, S.; Kasapoğlu, K.

doi:10.1016/j.physe.2011.08.012

Cited by 41 publications

(6 citation statements)

References 34 publications

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“…[ 17–19 ] In particular, since the external electric field changes the symmetry of such structures, it has been subjected to more extensive research than other effects. [ 20–23 ]…”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19] In particular, since the external electric field changes the symmetry of such structures, it has been subjected to more extensive research than other effects. [20][21][22][23] Under these external effects, it is possible to find many studies in which binding energy (E b ) and self-polarization (SP/e) calculations are made for the confinement electron, especially in QW1-doped semiconductors. [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43] Recently, the SP/e, which is defined as the influence of the well potential on the impurity atom has been studied for QW1 as a function of well width, external electric field, and the impurity position.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Self‐Polarization of Hydrogenic Impurity in Quantum Wells Made of Different Materials

Özkapı

Mese²,

Cicek³

et al. 2022

Physica Status Solidi (b)

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The effect of the external electric field on the ground state binding energy and self‐polarization of a hydrogenic donor impurity in quantum wells (QWs) made of different materials is calculated within the effective mass approximation using a variational scheme. The variations of binding energy and self‐polarization depending on well width, electric field, and impurity position have been studied in detail. For each QW made of different materials, it has been observed that the binding energy decreases with the increase of the electric field, whereas the self‐polarization increases. Also, it has been observed that InP/In1−x Ga x P has higher binding energy values among the structures discussed. It is seen that material selection has a noticeable effect on self‐polarization and binding energy in QW‐based structures.

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“…[ 17–19 ] In particular, since the external electric field changes the symmetry of such structures, it has been subjected to more extensive research than other effects. [ 20–23 ]…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Self‐Polarization of Hydrogenic Impurity in Quantum Wells Made of Different Materials

Özkapı

Mese²,

Cicek³

et al. 2022

Physica Status Solidi (b)

View full text Add to dashboard Cite

show abstract

“…(a) da E i taban durum yabancı atom enerjisi kuyu genişliği ve basınç arttıkça azalmaktadır [3]. Ayrıca basıncın arttırılmasıyla taban durum yabancı atom enerjisinin pozitif değerlerden negatif değerlere geçtiği nokta olan dönüm noktalarının (DN) daha küçük kuyu genişliklerinde olduğu göz-lenmektedir.…”

Section: Teori̇unclassified

Antisimetrik AlxLGa1-xLAs/GaAs/ AlxRGa1-xRAs Kuantum Kuyusunda Hidrostatik Basıncın Etkisi

Minez¹

2016

Marmara Fen Bil Dergisi

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“…Most such studies are based on solutions of the oneparticle Schrödinger equation within the effective mass approximation. Finding the energies of several lowest states often employs different variational methods or the method of perturbation theory [6][7][8][9][10][11][12][13][14][15][16], the potential morphing method [17][18][19] or numerical finite element method [20][21][22][23]. Only for some problems one can find exact solutions of the Schrödinger equation, which are especially valuable because they can be used to calculate the full energy spectrum and to solve more complex problems.…”

Section: Introductionmentioning

confidence: 99%

Impurity photoionization cross-section and intersubband optical absorption coefficient in multilayer spherical quantum dots

Holovatsky

Chubrei

Yurchenko

2021

Phys. Chem. Solid St.

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Energy spectrum, wave functions and binding energies of the electron to the donor impurity ion located in the center of a multilayer spherical quantum dot (MSQD) consisting of a core and two spherical shells were studied within the effective mass approximation. Based on the exact wave functions of the electron expressed in terms of Coulomb functions of the first and second kind, the spectral dependences of the photoionization cross section of the impurity (PCS) and the intersubband optical absorption coefficient (OAC) for various geometric dimensions of the nanostructure were calculated. It is shown that the decrease in the width of the external potential well changes the localization of the electron in the nanosystem which significantly affects the binding energy of the electron with the impurity, photoionization cross section and interband absorption coefficient. The position of the PCS peak associated with the quantum transition of an electron from the ground state to the 1p0 state shifts to the region of higher energies, and its height decreases. At the same time, the height of PCS peaks associated with quantum transitions to higher excited states (2p0, 3p0) increases.The presence of impurities and changes in the MSQD size significantly affect the intersubband absorption coefficient. Decrease of the external potential well width in the absence of impurities leads to a monotonous increase in OAC through the first excited state, and in the presence of a central impurity, absorption through states with higher energy increases.

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The hydrostatic pressure and electric field effects on the normalized binding energy of hydrogenic impurity in a GaAs/AlAs spherical quantum dot

Cited by 41 publications

References 34 publications

Self‐Polarization of Hydrogenic Impurity in Quantum Wells Made of Different Materials

Self‐Polarization of Hydrogenic Impurity in Quantum Wells Made of Different Materials

Antisimetrik AlxLGa1-xLAs/GaAs/ AlxRGa1-xRAs Kuantum Kuyusunda Hidrostatik Basıncın Etkisi

Impurity photoionization cross-section and intersubband optical absorption coefficient in multilayer spherical quantum dots

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