Results 41 to 50 of about 81,116 (318)
Elimination of Bimodal Size in InAs/GaAs Quantum Dots for Preparation of 1.3-μm Quantum Dot Lasers
Nanoscale Research Letters, 2018 The device characteristics of semiconductor quantum dot lasers have been improved with progress in active layer structures. Self-assembly formed InAs quantum dots grown on GaAs had been intensively promoted in order to achieve quantum dot lasers with ...
Xiang-Bin Su +9 more
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Quantum-dot devices and Quantum-dot Cellular Automata
Journal of the Franklin Institute, 1997 We discuss novel nanoelectronic architecture paradigms based on cells composed of coupled quantum-dots. Boolean logic functions may be implemented in specific arrays of cells representing binary information, the so-called Quantum-Dot Cellular Automata (QCA).
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Phase transitions in quantum dots [PDF]
Physical Review B, 1996 We perform Hartree-Fock calculations to show that quantum dots (i.e. two dimensional systems of up to twenty interacting electrons in an external parabolic potential) undergo a gradual transition to a spin-polarized Wigner crystal with increasing magnetic field strength. The phase diagram and ground state energies have been determined.
Müller, H.-M., Koonin, S. E.
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A quantum dot single spin meter
, 2009 We present the theory of a single spin meter consisting of a quantum dot in a magnetic field under microwave irradiation combined with a charge counter.
Wabnig, J +6 more
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Transport through Zero-Dimensional States in a Quantum Dot [PDF]
, 1990 We have studied the electron transport through zero-dimensional (0D) states. 0D states are formed when one-dimensional edge channels are confined in a quantum dot.
Williamson, John G., +7 more
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Research Progress of Photoanodes for Quantum Dot Sensitized Solar Cells
Cailiao gongcheng, 2017 This paper presents the development status and tendency of quantum dot sensitized solar cells. Photoanode research progress and its related technologies are analyzed in detail from the three ways of semiconductor thin films, quantum dot co-sensitization ...
LI Zhi-min +4 more
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Time-resolved spectra of a self-pulsing quantum dot laser
, 2010 Self-sustained pulsations in the output of an InAs quantum dot laser diode in the MHz range are reported for the first time. The characteristics (shape, range and frequency) are presented for the free running laser and when optical feedback in the ...
Radwell, N., Tierno, A., Ackemann, T.
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Charge noise and spin noise in a semiconductor quantum device [PDF]
, 2014 Self-assembled quantum dots are very attractive as the building blocks for quantum light sources and spin qubits. For instance, a single quantum dot is a robust, fast, narrow-linewidth source of single photons, features not shared by any other ...
Kuhlmann, Andreas V.
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Simple Synthesis Method and Characterizations of Aggregation-Free Cysteamine Capped PbS Quantum Dot
Applied Sciences, 2019 Quantum dots have diverse chemical properties with different ligands attached on the surface. The cysteamine has been used as a ligand for various quantum dots because it has high solubility in water, and it facilitates binding of quantum dot and gold ...
Daekyung Kang +4 more
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Nanomaterials, 2023 The current work used the effective mass approximation conjoined with the finite element method to study the exciton states in a conical GaAs quantum dot.
Sargis P. Gavalajyan +6 more
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