Transition from Two-Dimensional to Three-Dimensional Quantum Confinement in Semiconductor Quantum Wires/Quantum Dots

Nano Letters ◽  
2007 ◽  
Vol 7 (8) ◽  
pp. 2227-2233 ◽  
Author(s):  
Q. Zhu ◽  
K. F. Karlsson ◽  
E. Pelucchi ◽  
E. Kapon
Keyword(s):  
Quantum Dots ◽  
Quantum Confinement ◽  
Quantum Wires ◽  
Three Dimensional ◽  
Two Dimensional

Sensitivity To Disorder Of Graphene-Like Lattices Of Quantum Dots And Antidots In Two-Dimensional Electron Gas

2016 ◽  
Vol 11 (1) ◽  
pp. 80-87
Author(s):  
Olga Tkachenko ◽  
Vitaliy Tkachenko
Keyword(s):  
Quantum Dots ◽  
Electron Gas ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Semiconductor Structures ◽  
Dimensional Electron Gas ◽  
Artificial Graphene ◽  
Electronic Channels

We compare three-dimensional electrostatics of semiconductor structures with graphene-like lattices of quantum dots and antidots formed in the plane of the two dimensional electron gas. With lattice constant fixed, the shape of the potential may be tuned so that both lattices have minband spectrum where the second Dirac feature is pronounced and not overlaid by the other states. We show that the lattice of quantum dots is more sensitive to fabrication imperfections, because sources of the disorder are located directly above the electronic channels. Thus the lattices of antidots should be preferred semiconductor artificial graphene candidates.

Stochastic quantum confinement in nanocrystalline silicon layers: The role of quantum dots, quantum wires and localized states

2015 ◽  
Vol 347 ◽  
pp. 471-474 ◽  
Author(s):  
A. Ramírez-Porras ◽  
O. García ◽  
C. Vargas ◽  
A. Corrales ◽  
J.D. Solís
Keyword(s):  
Quantum Dots ◽  
Quantum Confinement ◽  
Quantum Wires ◽  
Nanocrystalline Silicon ◽  
Localized States

From two-dimensional to three-dimensional quantum dots

2002 ◽  
Vol 13 (2-4) ◽  
pp. 638-641 ◽  
Author(s):  
S. Lindemann ◽  
T. Ihn ◽  
T. Heinzel ◽  
K. Ensslin ◽  
K. Maranowski ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Three Dimensional ◽  
Two Dimensional

scholarly journals Estimation of Silicon Nanocrystalline Sizes from Photoluminescence Measurements of RF Co-Sputtered Si/SiO2 Films.

2002 ◽  
Vol 737 ◽  
Author(s):  
A. Ramírez-Porras ◽  
L.F. Fonseca ◽  
O. Resto
Keyword(s):  
Quantum Dots ◽  
Quantum Confinement ◽  
Quantum Wires ◽  
Sio2 Films ◽  
Pl Spectra ◽  
Si Nanocrystals ◽  
Quartz Substrates ◽  
Stochastic Distribution ◽  
Confinement Model

ABSTRACTA stochastic distribution of nanocrystalline sizes model is applied to fit photoluminescence (PL) spectra of luminescent Si nanocrystals in a Si/SiO2 matrix synthesized by RF co-sputtering on the top of quartz substrates. With this method, the PL spectra from a diverse set of samples can be resolved mainly as the sum of two components: a contribution from a gaussian-like distribution of sizes of quantum dots (QD) and a similar component from a distribution of quantum wires (QW). These distributions of sizes and their associated PL energies agree well with the so-called Smart Quantum Confinement model (SQC).

scholarly journals Quantum confinement and dielectric profiles of colloidal nanoplatelets of halide inorganic and hybrid organic–inorganic perovskites

Nanoscale ◽  
2016 ◽  
Vol 8 (12) ◽  
pp. 6369-6378 ◽  
Author(s):  
Daniel Sapori ◽  
Mikaël Kepenekian ◽  
Laurent Pedesseau ◽  
Claudine Katan ◽  
Jacky Even
Keyword(s):  
High Frequency ◽  
Quantum Confinement ◽  
Three Dimensional ◽  
Two Dimensional ◽  
3D Structures

Quantum confinement as well as high frequencyε∞and staticεsdielectric profiles are described for nanoplatelets of halide inorganic perovskites CsPbX3(X = I, Br, Cl) and hybrid organic–inorganic perovskites (HOP) in two-dimensional (2D) and three-dimensional (3D) structures.

Quantum confinement effects across two-dimensional planes in MoS2 quantum dots

2015 ◽  
Vol 106 (23) ◽  
pp. 233113 ◽  
Author(s):  
Z. X. Gan ◽  
L. Z. Liu ◽  
H. Y. Wu ◽  
Y. L. Hao ◽  
Y. Shan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Confinement ◽  
Two Dimensional ◽  
Confinement Effects ◽  
Quantum Confinement Effects

Control of the two-dimensional–three-dimensional transition of self-organized CdSe/ZnSe quantum dots

2005 ◽  
Vol 16 (8) ◽  
pp. 1116-1118 ◽  
Author(s):  
I C Robin ◽  
R André ◽  
H Mariette ◽  
S Tatarenko ◽  
Le Si Dang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Self Organized
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