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G. Rezaei, M. Vahdani, M. Barati (2008)
Polaron Effects on the Intersubband Optical Absorption Coefficient and Refractive Index Changes of an Infinite Confining Potential Quantum BoxJournal of Nanoelectronics and Optoelectronics, 3
Chih-Li Weng, I. Chen, Yan-Chr Tsai (2007)
Electron-acoustic-phonon interaction in core/shell nanocrystals and in quantum-dot quantum wellsPhysical Review B, 76
C. Woon, G. Gopir, A. Othman (2011)
Finite difference calculation of electron states in CdTe-CdS core-shell quantum dotsSains Malaysiana, 40
R. Kostic, D. Stojanović (2011)
Nonlinear absorption spectra for intersubband transitions of CdSe/ZnS spherical quantum dotsJournal of Nanophotonics, 5
B. Dabbousi, J. Rodríguez-Viejo, F. Mikulec, J. Heine, H. Mattoussi, R. Ober, ‡§ Jensen, M. Bawendi (1997)
(CdSe)ZnS Core-Shell Quantum Dots - Synthesis and Characterization of a Size Series of Highly Luminescent NanocrystallitesJournal of Physical Chemistry B, 101
A. Zouitine, A. Ibral, E. Assaid, F. Dujardin, E. Feddi (2017)
Spatial separation effect on the energies of uncorrelated and correlated electron-hole pair in CdSe/ZnS and InAs/InP core/shell spherical quantum dotsSuperlattices and Microstructures, 109
Chunyang Zhang, H. Yeh, M. Kuroki, Tza-Huei Wang (2005)
Single-quantum-dot-based DNA nanosensorNature Materials, 4
J. Haus, Haoshen Zhou, I. Honma, H. Komiyama (1993)
Quantum confinement in semiconductor heterostructure nanometer-size particles.Physical review. B, Condensed matter, 47 3
Juit Waknaghat (2011)
Department of Electronics and Communication Engineering
J. Blakesley, J. Blakesley, P. See, A. Shields, B. Kardynał, P. Atkinson, I. Farrer, D. Ritchie (2005)
Efficient single photon detection by quantum dot resonant tunneling diodes.Physical review letters, 94 6
(2010)
a review,” Materials (Basel)
A. Deyasi, S. Bhattacharyya, N. Das (2013)
Computation of intersubband transition energy in normal and inverted core-shell quantum dots using finite difference techniqueSuperlattices and Microstructures, 60
Hatice Tacs, M. Sahin (2012)
The electronic properties of a core/shell/well/shell spherical quantum dot with and without a hydrogenic impurityJournal of Applied Physics, 111
R. Khordad, G. Rezaei, B. Vaseghi, F. Taghizadeh, H. Kenary (2011)
Study of optical properties in a cubic quantum dotOptical and Quantum Electronics, 42
D. Bera, L. Qian, T. Tseng, P. Holloway (2010)
Quantum Dots and Their Multimodal Applications: A ReviewMaterials, 3
R. Mahrsia, M. Choubani, L. Bouzaiene, H. Maaref (2016)
Nonlinear optical rectification in a vertically coupled lens-shaped InAs/GaAs quantum dots with wetting layers under hydrostatic pressure and temperatureJournal of Alloys and Compounds, 671
Brad Kairdolf, Andrew Smith, T. Stokes, May Wang, A. Young, S. Nie (2013)
Semiconductor quantum dots for bioimaging and biodiagnostic applications.Annual review of analytical chemistry, 6
(1998)
Semiconductor nanocrystals as fluorescent biological labels,
D. Saxena, N. Jiang, Xiaoming Yuan, S. Mokkapati, Yanan Guo, H. Tan, C. Jagadish (2016)
Design and Room-Temperature Operation of GaAs/AlGaAs Multiple Quantum Well Nanowire Lasers.Nano letters, 16 8
(1993)
Coated semiconductor nanoparticles: the CdS/PbS system's synthesis and properties
Lifang Shi, Vania Paoli, N. Rosenzweig, Z. Rosenzweig (2006)
Synthesis and application of quantum dots FRET-based protease sensors.Journal of the American Chemical Society, 128 32
E. Rosencher, P. Bois (1991)
Model system for optical nonlinearities: Asymmetric quantum wells.Physical review. B, Condensed matter, 44 20
E. Oh, M. Hong, Dohoon Lee, Sung-Hun Nam, H. Yoon, Hak-sung Kim (2005)
Inhibition assay of biomolecules based on fluorescence resonance energy transfer (FRET) between quantum dots and gold nanoparticles.Journal of the American Chemical Society, 127 10
P. Martyniuk, A. Rogalski (2008)
Quantum-dot infrared photodetectors: Status and outlookProgress in Quantum Electronics, 32
S. Saha, S. Hussain, J. Kumar (2018)
Binary and ternary capped In(Ga)As/GaAs self-assembled quantum dots: An annealing studySuperlattices and Microstructures, 117
Bekir Çakır, Y. Yakar, Ayhan Özmen (2012)
Refractive index changes and absorption coefficients in a spherical quantum dot with parabolic potentialJournal of Luminescence, 132
A. Kortan, R. Hull, R. Opila, M. Bawendi, M. Steigerwald, P. Carroll, L. Brus (1990)
Nucleation and Growth of CdSe on ZnS Quantum Crystallite Seeds and Vice Versa, in Inverse Micelle MediaJournal of the American Chemical Society, 112
A. Barve, Sang Lee, S. Noh, S. Krishna (2010)
Review of current progress in quantum dot infrared photodetectorsLaser & Photonics Reviews, 4
(2018)
an annealing study,” Superlattices Microstruct
M. Haouari, A. Talbi, E. Feddi, H. Ghazi, A. Oukerroum, F. Dujardin (2017)
Linear and nonlinear optical properties of a single dopant in strained AlAs/GaAs spherical core/shell quantum dotsOptics Communications, 383
Z. Heng, Jun-Jie Shi (2004)
Ground state of excitons in quantum-dot quantum-well nanoparticles: stochastic variational methodChinese Physics, 13
Shen Chang-yu (2008)
CdSe/ZnS/CdS core/shell quantum dots for white LEDs, 7138
Xiaobo Feng, G. Xiong, Xi Zhang, Haiyan Gao (2006)
Third-order nonlinear optical susceptibilities associated with intersubband transitions in CdSe/ZnS core–shell quantum dotsPhysica B-condensed Matter, 383
(2004)
stochastic variational method,” Chin
D. El-Moghraby, R. Johnson, P. Harrison (2003)
Calculating modes of quantum wire and dot systems using a finite differencing techniqueComputer Physics Communications, 150
(1991)
asymmetric quantum wells,” Phys
G. Rezaei, M. Vahdani, M. Barati (2010)
INTERSUBBAND OPTICAL ABSORPTION COEFFICIENTS AND REFRACTIVE INDEX CHANGES OF AN ELLIPSOIDAL FINITE POTENTIAL QUANTUM DOTJournal of Nonlinear Optical Physics & Materials, 19
T Shelawati, Nurisya, C. Tim, A Mazliana (2019)
Effects of step-potential on confinement strength of strain-induced type-I core–shell quantum dotsSuperlattices and Microstructures
A. AbouElhamd, Khaled Al-Sallal, Ahmed Hassan (2019)
Review of Core/Shell Quantum Dots Technology Integrated into Building’s GlazingEnergies
(2008)
status and outlook,” Prog
(1997)
synthesis and characterization of a size series of highly luminescent nanocrystallites,” J
H. Ghadi, N. Sehara, P. Murkute, S. Chakrabarti (2017)
Minimization of material inter-diffusion for thermally stable quaternary-capped InAs quantum dot via strain modificationSuperlattices and Microstructures, 105
Hongwei Li, B. Kardynał, P. See, A. Shields, P. Simmonds, H. Beere, D. Ritchie (2007)
Quantum Dot Resonant Tunneling Diode for Telecommunication Wavelength Single Photon DetectionApplied Physics Letters, 91
A. Ibral, A. Zouitine, S. Aazou, E. Assaid, E. Feddi, F. Dujardin (2013)
Effects of dielectric mismatch and effective mass mismatch on exciton ground state energy in spherical Core/Shell nanostructuresJournal of Optoelectronics and Advanced Materials, 15
(1994)
Preparation, characterization, and photophysics of the quantum dot quantum well system CdS/HgS/CdS,
(1993)
the CdS/PbS system’s synthesis and properties,” J
W. Chan, S. Nie (1998)
Quantum dot bioconjugates for ultrasensitive nonisotopic detection.Science, 281 5385
M. Alias, Malleswararao Tangi, J. Holguín-Lerma, Edgars Stegenburgs, A. Alatawi, I. Ashry, Ram Subedi, D. Priante, M. Shakfa, T. Ng, B. Ooi (2018)
Review of nanophotonics approaches using nanostructures and nanofabrication for III-nitrides ultraviolet-photonic devicesJournal of Nanophotonics, 12
A. Deyasi, S. Bhattacharyya, N. Das (2014)
A finite-difference technique for computation of electron states in core–shell quantum wires of different configurationsPhysica Scripta, 89
D. BenDaniel, C. Duke (1966)
Space-Charge Effects on Electron TunnelingPhysical Review, 152
AbstractIntersubband transition energy is computed for both core-shell quantum dot (CSQD) and binary capped core-shell quantum dot (CCSQD) of cubic geometry by solving the time-independent Schrodinger equation using the finite difference method. The discretization of the structures in all three spatial directions generates sparse Hamiltonian matrices, which are diagonalized to obtain energy eigenstates for the conduction band. The transition energy for the lowest three energy eigenstates is compared for different structural parameters considering GaAs / Al0.42Ga0.58As CSQDs. CSQD capped with AlAs (CCSQD) viz GaAs / Al0.42Ga0.58As / AlAs shows higher eigenstates and transition energy, which decreases with the increase in core thickness. Furthermore, the optical properties of these structures have been investigated which are in concurrence with the obtained eigen energy. The broader tuning range and blueshifted higher absorption coefficient of CCSQD support significant application in quantum dot detectors and lasers.
Journal of Nanophotonics – SPIE
Published: Apr 1, 2020
Keywords: core-shell quantum dot; finite difference method; transition energy; absorption coefficient
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