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Group-velocity slowdown in quantum-dots and quantum-dot molecules [PDF]
SPIE Proceedings, 2014 We investigate theoretically the slowdown of optical pulses due to quantum-coherence effects in InGaAs-based quantum dots and quantum dot molecules. Simple models for the electronic structure of quantum dots and, in particular, quantum-dot molecules are described and calibrated using numerical simulations.
Hans Christian Schneider +2 more
arxiv +6 more sources
Efficient and stable near-infrared InAs quantum dot light-emitting diodes [PDF]
Nature CommunicationsVisible quantum dot light-emitting diodes have satisfied commercial display requirements. However, near-infrared counterparts considerably lag behind due to the inferior quality of near-infrared quantum dots and limitations in device architecture ...
Binghan Li +10 more
doaj +2 more sources
Coupled quantum dots as quantum gates [PDF]
Physical Review B, 1999 We consider a new quantum gate mechanism based on electron spins in coupled semiconductor quantum dots. Such gates provide a general source of spin entanglement and can be used for quantum computers. We determine the exchange coupling J in the effective Heisenberg model as a function of magnetic (B) and electric fields, and of the inter-dot distance (a)
Guido Burkard +2 more
openalex +6 more sources
Shared control of a 16 semiconductor quantum dot crossbar array [PDF]
Nature Nanotechnology, 2022 The efficient control of a large number of qubits is one of the most challenging aspects for practical quantum computing. Current approaches in solid-state quantum technology are based on brute-force methods, where each and every qubit requires at least ...
F. Borsoi +9 more
semanticscholar +1 more source
Conformal quantum dot–SnO2 layers as electron transporters for efficient perovskite solar cells
Science, 2022 Improvements to perovskite solar cells (PSCs) have focused on increasing their power conversion efficiency (PCE) and operational stability and maintaining high performance upon scale-up to module sizes.
Minjin Kim +20 more
semanticscholar +1 more source
Quantum teleportation with imperfect quantum dots [PDF]
npj Quantum Information, 2021 AbstractEfficient all-photonic quantum teleportation requires fast and deterministic sources of highly indistinguishable and entangled photons. Solid-state-based quantum emitters—notably semiconductor quantum dots—are a promising candidate for the role.
Val Zwiller +11 more
openaire +4 more sources
Fabrication of Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes via Inkjet Printing
Micromachines, 2022 As an effective manufacturing technology, inkjet printing is very suitable for the fabrication of perovskite light-emitting diodes in next-generation displays. However, the unsatisfied efficiency of perovskite light-emitting diode created with the use of
Taikang Ye +9 more
doaj +1 more source
Full-Color Quantum Dot Light-Emitting Diodes Based on Microcavities
IEEE Photonics Journal, 2022 Full-color display is a primary challenge for the commercialization of quantum dots (QDs). In this study, we utilize the spectral narrowing phenomenon of microcavities to fabricate the red, green and blue quantum dot light-emitting diodes (QLEDs) with a ...
Guanding Mei +8 more
doaj +1 more source
Advanced Science, 2021 Organic–inorganic halide perovskites have demonstrated significant light detection potential, with a performance comparable to that of commercially available photodetectors.
Dan Wu +9 more
doaj +1 more source
Quantum Dots and Applications [PDF]
Materials, 2020 It is the unique size-dependent band gap of quantum dots (QDs) that makes them so special in various applications. They have attracted great interest, especially in optoelectronic fields such as light emitting diodes and photovoltaic cells, because their photoluminescent characteristics can be significantly improved via optimization of the processes by
Chang-Yeol Han +2 more
openaire +2 more sources