Results 31 to 40 of about 2,364 (190)

Bi2Te3 photoconductive detectors on Si [PDF]

open access: yesApplied Physics Letters, 2017
The peculiar properties of the gapless surface states with a Dirac cone shaped energy dispersion in topological insulators (TIs) enable promising applications in photodetection with an ultra-broad band and polarization sensitivity. Since many TIs can be easily grown on silicon (Si) substrates, TIs on Si could make an alternative route for photon ...
Juanjuan Liu   +7 more
openaire   +1 more source

Improved thermoelectric performance in Cr-doped two-dimensional Bi2Te3

open access: yesMaterials Today Quantum
Thermoelectric materials with high electrical conductivity and low thermal conductivity (e.g., Bi2Te3) can efficiently convert waste heat into electricity.
Jun Beom Park   +2 more
doaj   +1 more source

Permeable carbon fiber based thermoelectric film with exceptional EMI shielding performance and sensor capabilities

open access: yesJournal of Advanced Ceramics
Thermoelectric (TE) technologies offer a promising approach for directly converting skin heat into electricity for wearable electronics. Recognizing p-type Sb2Te3 and n-type Bi2Te3 as top-performing materials at room temperature, their rigid inorganic ...
Junjie Zhu   +5 more
doaj   +1 more source

Machine Learning‐Assisted Inverse Design of Soft and Multifunctional Hybrid Liquid Metal Composites

open access: yesAdvanced Functional Materials, EarlyView.
A machine learning framework is presented for inverse design of synthesizable multifunctional composites containing both liquid metal and solid inclusions. By integrating physics‐based modeling, data‐driven prediction, and Bayesian optimization, the approach enables intelligent design of experiments to identify optimal compositions and realize these ...
Lijun Zhou   +5 more
wiley   +1 more source

Preparation and properties of P-type Bi2Te3-based materials with high preferred orientation

open access: yesFenmo yejin jishu
Using the Bi0.4Sb1.6Te3+3%Te (mass fraction) melting crystal rods as the raw materials, the alloy ingots with good orientation were prepared by water-cooled copper crucible maglev melting technology. The P-type Bi2Te3-based alloy powders were obtained by
SU Zishan   +4 more
doaj   +1 more source

Polymer‐Redox Interactions Enhance Ferro/Ferricyanide Thermogalvanic Cells

open access: yesAdvanced Functional Materials, EarlyView.
Polyelectrolyte could modify the hydration structure of the redox couple in solution and improve the output performance of thermogalvanic cells, providing new fundamental insight into how electrostatic interactions can be exploited to tailor thermoelectric properties.
Pedro Santos Candiotto de Oliveira   +6 more
wiley   +1 more source

Hollow Bi2Te3 nanowire supported Ir for highly active and durable oxygen evolution reaction in proton exchange membrane water electrolysis

open access: yesNano Research
The imperative demand for energy paradigm shift toward renewable and sustainable energy sources has intensified interest in proton exchange membrane water electrolysis (PEMWE) as a clean and efficient hydrogen production technology.
Young Hwa Yun   +10 more
doaj   +1 more source

Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy

open access: yesAPL Materials, 2020
Relying on the magnetism induced by the proximity effect in heterostructures of topological insulators and magnetic insulators is one of the promising routes to achieve the quantum anomalous Hall effect.
V. M. Pereira   +5 more
doaj   +1 more source

Passivation of Bi2Te3 Topological Insulator by Transferred CVD‐Graphene: Toward Intermixing‐Free Interfaces

open access: yesAdvanced Materials Interfaces, 2022
The investigation, and ultimate application, of topological insulators, typically involve exposure to ambient conditions or their integration with metals, which lead to surface oxidation or material intermixing.
Regina Galceran   +10 more
doaj   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

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