Results 71 to 80 of about 1,081,271 (246)

Tunable p–p Interactions Along Linear Chains Control Metavalent Bonding in Chalcogenide Heterostructures

Advanced Science, EarlyView.
Substitution of Sr at the Pb site within an atomic plane of PbTe perturbs the p–p hopping network. Since Sr does not support the p–p interaction key to metavalent bonding along (‐Pb‐Te‐) chains, long‐range electronic charge transfer in response to displacement of Pb is stalked at the Sr site.
Sakshi Verma, Kanishka Biswas, Umesh V. Waghmare, C. N. R. Rao   +3 more
wiley   +1 more source

Thermovoltages under a non‐linear Seebeck coefficient

physica status solidi (a), 2016
The thermovoltages in the case of a nonlinear absolute Seebeck‐coefficient S(T) of a material A are discussed up to the quadratic term in the expansion of S(T) for inhomogeneous (AB) as well as for homogeneous (AA) material rings. The quadratic term results in additional thermovoltages and in particular in a Benedicks effect, ΔuAA ∼ (ΔT)3, but only if ...
Bärner, K., Morsakov, W., Irrgang, K.
openaire   +2 more sources

Dicationic Ion‐Pair Doping Enables Stable and High‐Performing Conducting Polymers for Organic Thermoelectrics

Advanced Science, EarlyView.
TAB–2TFSI enables efficient ion‐pair doping across a wide range of conjugated polymers, where the strongly oxidizing TAB core drives charge transfer, and the TFSI counterions promote favorable ionic compensation. This dicationic dopant promotes uniform dopant distribution, improves structural order, and increases carrier delocalization, establishing a ...
Juhyung Park, Shubhradip Guchait, Tanmay Sinha, Cynthia Verduyckt, Vijitha Ignatious, Tzu‐Yi Yu, Heyi Xia, Altynay Kaidarova, Michael Ng, Siebe Detavernier, Martin Rosenthal, Maristella Alessio, Daniel Escudero, Guy Koeckelberghs, Francisco Molina‐Lopez   +14 more
wiley   +1 more source

Hot probe technique for thin films Seebeck coefficient measurement

Results in Engineering
A new experimental method using a 50 μm diameter hand fabricated hot probe of Pt90/10Rh alloy is proposed as a tool to measure the Seebeck coefficient of thin films deposited onto electrically insulated substrates.
C.L. Hapenciuc, M. Oane, A. Visan, C. Ristoscu, A. Stochioiu, I. Urzica, M. Dumitru, S. Anghel, T. Borca-Tasciuc, I.N. Mihailescu   +9 more
doaj   +1 more source

Heat‐to‐Electricity Conversion Using Barium Strontium Titanate Multilayer Capacitors

Advanced Science, EarlyView.
Lead‐free barium strontium titanate multilayer capacitors convert waste heat into electricity via the Olsen electro‐thermodynamic cycle. These capacitors achieve an energy density of 3.7 J cm−3, comparable to the performance of lead‐based ceramics. Their high dielectric strength and broad operating temperature window below 100°C make them practical for
Fan Ni, Junning Li, Uros Prah, Youri Nouchokgwe, Yves Fleming, Ashwath Aravindhan, Moiz Khalil, Torsten Granzow, Sakyo Hirose, Veronika Kovacova, Emmanuel Defay   +10 more
wiley   +1 more source

Numerical Simulations of Thermoelectric Materials for Local Seebeck Coefficient Measurements by a Heated Microprobe

Journal of Thermal Science and Technology, 2011
This paper presents numerical simulations of thermoelectric materials for local Seebeck coefficient measurements by a heated microprobe. The Galerkin finite element method is used to solve the governing equations with boundary conditions to obtain ...
Chung-Chien HUANG, Chen-I HUNG
doaj   +1 more source

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

Advanced 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, Li Zhang, Meng Li, Jie Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +7 more
wiley   +1 more source

Seebeck coefficient in multiphase thin films

, 2020
International audienceMg-Ag-Sb thin films were deposited by magnetron sputtering using a commercial Mg 1/3 Ag 1/3 Sb 1/3 target. All the films contain principally the two phases Ag 3 Sb and alpha-MgAgSb in same proportions but exhibit different ...
Hoummada, Khalid, Portavoce, Alain, Descoins, Marion, Kammouni, Abdelkhalek, Oueldna, Nouredine, Bertoglio, Maxime   +5 more
core   +1 more source

Magneto-Seebeck effect in magnetic tunnel junctions with perpendicular anisotropy

AIP Advances, 2017
As one invigorated filed of spin caloritronics combining with spin, charge and heat current, the magneto-Seebeck effect has been experimentally and theoretically studied in spin tunneling thin films and nanostructures.
Keyu Ning, Houfang Liu, Zhenyi Ju, Chi Fang, Caihua Wan, Jinglei Cheng, Xiao Liu, Linsen Li, Jiafeng Feng, Hongxiang Wei, Xiufeng Han, Yi Yang, Tian-Ling Ren   +12 more
doaj   +1 more source

Open‐Shell Conjugated Polymers Enable Photothermoelectric Conversion and Detection of Short‐Wave Infrared Light

Advanced Science, EarlyView.
Efficient conversion and detection of short‐wave infrared (SWIR) photons are becoming increasingly important for emerging photonic and energy technologies. Here, we report an organic photothermoelectric device based on an open‐shell conjugated polymer that enables SWIR energy conversion and photon detection via the photothermoelectric effect.
Guan‐Lin Chen, Soonyong Lee, Shao‐Huan Hong, Jhih‐Min Lin, Han Young Woo, Cheng‐Liang Liu   +5 more
wiley   +1 more source