Results 61 to 70 of about 2,219,213 (361)

Quantum simulation of a Fermi–Hubbard model using a semiconductor quantum dot array [PDF]

Nature, 2017
Interacting fermions on a lattice can develop strong quantum correlations, which are the cause of the classical intractability of many exotic phases of matter.
T. Hensgens, T. Fujita, Laurens Janssen, Xiao Li, C. V. Diepen, C. Reichl, Werner Wegscheider, S. Sarma, L. Vandersypen   +8 more
semanticscholar   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

The effects of pressure and temperature on the exchange energy of a parabolic quantum dot under a magnetic field

Journal of Taibah University for Science, 2017
The combined effects of pressure and temperature on the energy levels of a parabolic GaAs quantum dot under a magnetic field have been studied. The exact diagonalization method was used to solve the two-electron quantum dot Hamiltonian and to obtain the ...
Faten Bzour, Ayham Shaer, Mohammad K. Elsaid   +2 more
doaj   +1 more source

Formation InAs Quantum Dots in a Matrix GaAs in Kinetic Mode for CVD-method [PDF]

Журнал нано- та електронної фізики, 2017
We present the results of theoretical study for the kinetic mode of quantum dot formation in the InAs / GaAs system. The theory is valid at the kinetic stage of quantum dot formation, when the island ensemble remains dilute and thus noninteracting.
S.K. Guba
doaj   +1 more source

On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar. [PDF]

Physical Review Letters, 2016
Scalable photonic quantum technologies require on-demand single-photon sources with simultaneously high levels of purity, indistinguishability, and efficiency.
X. Ding, Yu He, Z. Duan, N. Gregersen, Ming-Cheng Chen, S. Unsleber, S. Maier, C. Schneider, M. Kamp, S. Höfling, Chaoyang Lu, Jian-Wei Pan   +11 more
semanticscholar   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

ENERGY LEVEL DETERMINATION AND PERFORMANCE ANALYSIS OF QUANTUM DOT PHOTO DETECTOR [PDF]

ICTACT Journal on Communication Technology, 2013
The theoretical estimation of dark and illumination characteristics of InGaAs quantum dot photo detector is developed and presented in this paper. The exact potential and energy profile of the Quantum Dot is computed by obtaining the solution of 3D ...
M. Madheswaran, K.R. Kavitha
doaj  

Si-Doped InAs/GaAs Quantum Dot Solar Cell with Alas Cap Layers

E3S Web of Conferences, 2017
In this work, the effect of Si doping on InAs/GaAs quantum dot solar cells with AlAs cap layers is studied. The AlAs cap layers suppress the formation of the wetting layer during quantum dot growth.
Kim Dongyoung, Tang Mingchu, Wu Jiang, Hatch Sabina, Maidaniuk Yurii, Dorogan Vitaliy, Mazur Yuriy I., Salamo Gregory J., Liu Huiyun   +8 more
doaj   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source