Results 31 to 40 of about 4,105 (266)

The thermo-electric nature of the Debye temperature

open access: yesAIP Advances, 2018
The Debye temperature is typically associated with the heat capacity of a solid and the cut-off of the possible lattice vibrations, but not necessarily to the electric conductivity of the material. By investigating III-V and II-VI compound semiconductors,
Mithun Bhowmick   +3 more
doaj   +1 more source

Synthesis of colloidal Zn(Te,Se) alloy quantum dots

open access: yesMaterials Research Express, 2017
Colloidal Zn(Te _1− _x Se _x ) quantum dots (QDs), which are highly mismatched semiconductor alloys, were synthesized by the hot injection of an organometallic solution, and the composition and size dependence of their optical gap were studied together ...
H Asano, K Arai, M Kita, T Omata
doaj   +1 more source

Mechanism of Mn emission: Energy transfer vs charge transfer dynamics in Mn-doped quantum dots

open access: yesAPL Materials, 2020
In the quest for new functional materials, transition metal doping in semiconductors has attracted significant attention, wherein introduction of dopant atoms alters a range of physical properties of the host such as its optical, magnetic, and electronic
Pradeep K. R., Ranjani Viswanatha
doaj   +1 more source

Dislocation structures and motion in II–VI semiconductors

open access: yesPhysica B+C, 1983
Abstract Glide dislocations in CdS and CdTe have been studied by transmission electron microscopy, using the weak-beam technique. Dislocation glide planes, Burgers vectors and types (α or β) were identified. In both materials, both α and β dislocations were found to be dissociated, with dissociation widths corresponding to γ = 9.7±1.7 mJ m -2 (CdTe)
Lu, G, Cockayne, D
openaire   +1 more source

Effects of ZnO magnetron sputtering on surface charge and flashover voltage of oil-impregnated paper

open access: yesHigh Voltage, 2019
With the aim of exploring an alternative method of nano-doping in cellulose paper and improving flashover strength of oil-impregnated paper, radio frequency (RF) magnetron sputtering method is introduced into the structural modification of insulating ...
Boxue Du   +4 more
doaj   +1 more source

Exciton-Photon Interactions in Semiconductor Nanocrystals: Radiative Transitions, Non-Radiative Processes and Environment Effects

open access: yesApplied Sciences, 2021
In this review, we discuss several fundamental processes taking place in semiconductor nanocrystals (quantum dots (QDs)) when their electron subsystem interacts with electromagnetic (EM) radiation.
Vladimir A. Burdov   +1 more
doaj   +1 more source

Magnetic Properties of Ni-doped ZnO Nanocombs by CVD Approach

open access: yesNanoscale Research Letters, 2010
The search for above room temperature ferromagnetism in dilute magnetic semiconductors has been intense in recent year. Arrays of perpendicular ferromagnetic nanowire/rods have recently attracted considerable interest for their potential use in many ...
ShaoMin Zhou   +7 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Research Update: Strategies for efficient photoelectrochemical water splitting using metal oxide photoanodes

open access: yesAPL Materials, 2014
Photoelectrochemical (PEC) water splitting to hydrogen is an attractive method for capturing and storing the solar energy in the form of chemical energy.
Seungho Cho   +3 more
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

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