Results 61 to 70 of about 6,758 (243)

Fabrication of BN aerogels/Bi2Te3 composite thermoelectric generator (TEG) with high seebeck coefficient

open access: yesResults in Materials, 2023
Boron nitride (BN) aerogels materials have low density characteristics and stable three-dimensional network structure, which can be used as high thermal conductivity ultralight materials or thermal conductive polymer additives.
Xiangqian Jiang   +6 more
doaj   +1 more source

Enhancing Near‐Room‐Temperature Thermoelectric Performance of n‐Type Mg3(Sb, Bi)2‐Based Materials via ZrB2 Heterointerface Engineering

open access: yesAdvanced Science, EarlyView.
A conductive ZrB2 ceramic composite strategy was developed for Mg3(Sb, Bi)2 thermoelectrics to regulate carrier transport and phonon scattering through heterointerface engineering. The 1.0 wt.% ZrB2 composite achieved enhanced room‐temperature performance, with a power factor of 28.51 µW cm−1 K−2 and a peak ZT of 1.22 at 573 K.
Yangyang Xu   +7 more
wiley   +1 more source

Magnetic proximity-enhanced Curie temperature of Cr-doped Bi2Se3 thin films [PDF]

open access: yes, 2015
Beam time awarded on ID32 at the ESRF (Proposal No. HC-1282) and on I10 at the Diamond Light Source (Proposal No. SI-10207) are acknowledged. T.H. acknowledges the John Fell Oxford University Press (OUP) Research Fund. A.A.B.
van der Laan, G   +15 more
core   +1 more source

Towards improvement of bismuth and tellurium as a thermoelectric material for energy harvesting through nanostructuring

open access: yes, 2014
It has been demonstrated that lyotropic liquid crystal templates (LLCT) with mesoporous structures can be used during electrodeposition of thin films to produce films with a mesoporous structure transferred from the LLCT.
Perkins, Stuart
core   +1 more source

Comparison of the electronic and thermoelectric properties of three layered phases Bi2Te3, PbBi2Te4 and PbBi4Te7: LEGO thermoelectrics

open access: yesAIP Advances, 2018
The electronic and thermoelectric properties of Bi2Te3, PbBi2Te4 and PbBi4Te7 were examined on the basis of density functional theory (DFT) calculations and thermoelectric transport property measurements.
Changhoon Lee   +6 more
doaj   +1 more source

Insights into the Electrodeposition of Bi2Te3

open access: yes, 2010
In this paper, the processes associated with the electrodeposition of bismuth telluride (Bi2Te3), a thermoelectric material, are reported along with an analysis of the composition and crystallinity of the resulting films. The electrodeposition can be described by the general reaction 3HTeO2+ + 2Bi3+ + 18e– + 9H - Bi2Te3 + 6H2O.
Martín-González, Marisol   +4 more
openaire   +2 more sources

Synergistic Grain Boundary and Phonon Engineering Enables Ultrahigh Thermoelectric Performance in Mg3(Sb, Bi)2‐Based Materials

open access: yesAdvanced Science, EarlyView.
Ta encapsulated melting and Cu doping synergistically engineer grain boundaries and phonon scattering in Mg3(Sb,Bi)2, enabling single‐crystal‐like carrier transport and high thermoelectric performance. ABSTRACT Thermoelectric Mg3(Sb, Bi)2 has emerged as a rising star in virtue of its promising thermoelectric performance and abundant constituent ...
Jingdan Lei   +10 more
wiley   +1 more source

High-quality Bi2Te3 thin films grown on mica substrates for potential optoelectronic applications [PDF]

open access: yes, 2013
We report high-quality topological insulator Bi2Te3 thin films grown on muscovite mica substrates by molecular beam epitaxy. The topographic and structural analysis revealed that the Bi2Te 3 thin films exhibited atomically smooth terraces over a large ...
Yanwen Liu   +27 more
core   +1 more source

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

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

open access: yesAdvanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park   +5 more
wiley   +1 more source

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