Results 51 to 60 of about 2,144,094 (388)

Cs4PbBr6 Combined with Graphite as Anode for High-Performance Lithium Batteries

open access: yesMetals, 2022
Cs4PbBr6 quantum dots are glass-based materials. The perovskite structural material of Cs4PbBr6 quantum dots has shown an unexpected electronic performance.
Weigang Zhao, Cuirong Liu, Xu Yin
doaj   +1 more source

Graphene quantum dots embedded in hexagonal boron nitride sheets

open access: yes, 2010
We have carried out first-principles calculations on electronic properties of graphene quantum dots embedded in hexagonal boron nitride monolayer sheets.
Li, Junwen, Shenoy, Vivek B.
core   +1 more source

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

open access: yesAdvanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß   +7 more
wiley   +1 more source

Growth parameters of InAs/GaAs quantum dots grown by MOVPE [PDF]

open access: yes, 2006
Quantum dots are zero dimensional structures and therefore have superior transport and optical properties compared to either 2-dimensional or 3-dimensional structures.
Lim, Kheng Boo   +3 more
core  

Spin relaxation and decoherence of holes in quantum dots

open access: yes, 2005
We investigate heavy-hole spin relaxation and decoherence in quantum dots in perpendicular magnetic fields. We show that at low temperatures the spin decoherence time is two times longer than the spin relaxation time.
Daniel Loss, Denis V. Bulaev, K. Blum
core   +1 more source

Fabrication of Multifunctional FeSi Gyroid Lattice Composites via Additive Manufacturing and Polymer Infiltration

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli   +9 more
wiley   +1 more source

Research Progress on Quantum Dots and Their Reinforced Composite Coatings for Metal Corrosion Protection [PDF]

open access: yesCailiao Baohu
Quantum dots have attracted much attention due to their excellent biocompatibility,high specific surface area,ease of surface functionalization and diverse preparation methods.In recent years,significant progress has been made in the application of ...
ZHANG Heng, YAN Minglong, WU Yangmin
doaj   +1 more source

The Effects of Post-Thermal Annealing on the Emission Spectra of GaAs/AlGaAs Quantum Dots grown by Droplet Epitaxy

open access: yes, 2012
We fabricated GaAs/AlGaAs quantum dots by droplet epitaxy method, and obtained the geometries of the dots from scanning transmission electron microscopy data. Post-thermal annealing is essential for the optical activation of quantum dots grown by droplet
Choi   +17 more
core   +1 more source

Coherent single-photon emission from colloidal lead halide perovskite quantum dots [PDF]

open access: yesScience, 2018
Perovskite quantum emitters The development of many optical quantum technologies is dependent on the availability of solid-state single quantum emitters with near-perfect optical coherence.
H. Utzat   +10 more
semanticscholar   +1 more source

Stabilized Intermediate Phase Via Pseudo‐Halide Anions Toward Highly Efficient and Light‐Soaking Stable Perovskite Solar Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The formate pseudo‐halide anion is strategically introduced at the buried interface to stabilize the intermediate phases formed during perovskite crystallization. The controlled crystallization enhances crystallinity and alleviates tensile strain, eliminating residual PbI2 near the buried interface.
Jongdeuk Seo   +12 more
wiley   +1 more source

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