Results 91 to 100 of about 34,176 (253)

Facile and time-resolved chemical growth of nanoporous CaxCoO2 thin films for flexible and thermoelectric applications

, 2019
CaxCoO2 thin films can be promising for widespread flexible thermoelectric applications in a wide temperature range from room-temperature self-powered wearable applications (by harvesting power from body heat) to energy harvesting from hot surfaces (e.g.,
Kim, Jin Kuk, Lee, Jinho, Paul, Biplab, Ray, Samit K., Sinha, Tridib Kumar   +4 more
core   +1 more source

Defect Driven Electronic Structure Reconfiguration and Hierarchical Phonon Suppression in Ag2Se Thermoelectrics

Advanced Science, EarlyView.
Indium substitution in Ag2Se nanocrystals simultaneously tailors electronic structure and lattice dynamics. Fermi‐level upshift and band‐gap narrowing enhance electrical transport, while defect‐induced lattice softening intensifies phonon scattering and suppresses lattice thermal conductivity.
Yineng Gou, Mengyao Li, Fang Lyu, Xiaolong Sun, Muyang Huang, Wenhao Xie, Liangwei Hu, Wei Cao, Yue Hou, Yong Liu, Andreu Cabot, Ziyu Wang   +11 more
wiley   +1 more source

Current-induced cooling phenomenon in a two-dimensional electron gas under a magnetic field

, 2012
We investigate the spatial distribution of temperature induced by a dc current in a two-dimensional electron gas (2DEG) subjected to a perpendicular magnetic field.
A. Endo, A. Mittal, A.K.M. Wennberg, Akira Endo, B. Neudecker, B.L. Gallagher, D.L. Bergman, G. Granger, G.D. Smith, H. Akera, H. Oji, H. Okumura, H.B. Callen, H.J. Goldsmid, Hiroaki Nakamura, J. Wakabayashi, J.M. Ziman, K. Behnia, K. Behnia, K. Fujita, K. Yang, K. Yoshihiro, Kazuhiro Fujita, Kenji Yonemitsu, L.D. Landau, M. Jonson, M. Metcalf, N. Hirayama, N. Hirayama, N.R. Cooper, Naomi Hirayama, Naomichi Hatano, P.J. Price, R. Fletcher, R. Fletcher, R.F. Wick, R.W. Rendell, Ryōen Shirasaki, S. Goswami, S. Maximov, T. Harman, T. Harman, T. Ise, T. Nakagawa, W.E. Chickering, W.E. Chickering, X. Ying, Y. Komori, Y. Nagai, Yasuhiro Hasegawa   +49 more
core   +1 more source

Thermoelectric Gating Organic Electrochemical Transistors Enabled by Printable Ionogels With n‐p Convertible Thermopower

Advanced Science, EarlyView.
A type of thermoelectric ionogels with convertible n‐p thermopowers are demonstrated with Seebeck coefficients ranging from ‐3.61 to +9.74 mV K−1. Thus, thermoelectric gating organic electrochemical transistor is achieved by employing ionogel as thermoelectric modules and ionic dielectrics simultaneously, paving the road to self‐powered, highly ...
Xingyu Hu, Xinwen Yan, Ling Huang, Xiaohang Zhang, Xuan Cao, Cong Zhang, Qingqing Sun, Hanyu Jia, Xuying Liu   +8 more
wiley   +1 more source

Effect of Sb deficiency on the thermoelectric properties of Zn4Sb3

, 2015
We have investigated the effect of Sb-deficiency on the thermoelectric figure of merit (zT) of Zn4Sb3 prepared by solid state reaction route. At high temperatures, the Seebeck coefficient (S) and electrical conductivity ({\sigma}) increase with increase ...
Sanchela, Anup V., Thakur, Ajay D., Tomy, C. V.   +2 more
core   +2 more sources

Coupled Vacancy and Phonon‐Scattering Engineering Drive Defect Evolution Toward Multifunctional High‐Performance Bi2Te3 Thermoelectrics

Advanced Science, EarlyView.
ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li, Minwen Yang, Huangshui Ma, Jie Zheng, Shengqiang Cui, Xiaobo Tan, Xuri Rao, Xiang An, Zongxiang Kan, Siqi Huo, Jing Shuai, Min Hong, Ran Ang   +12 more
wiley   +1 more source

Validation of Experimental Cooling Performance of Multi-Stage Thin-Film Thermoelectric Devices via Numerical Simulation

Micromachines
In-plane thermoelectric thin-film cooling devices are considered a promising solution for thermal management in electronic systems. However, the actual cooling performance is far below that of regular bulk cooling devices, making the design of thin-film ...
Yu Ning, Longzhou Li, Ping Wei, Shaoqiu Ke, Wanting Zhu, Xiaolei Nie, Danqi He, Mingrui Liu, Wenyu Zhao   +8 more
doaj   +1 more source

Implementation of Thermoelectric Cooling Chip Cooling Fan System

, 2020
The traditional electric fan in summer, the wind blowing out is hot. In this study, thermoelectric cooling chips are used to cool the water. Then use the pump to put the ice water into the cold exhaust and blow out the cold air with a fan to achieve the effect of cooling the air.
Lin, Wen-Bin, Kao-Feng Yarn
openaire   +1 more source

People Counting and Positioning Using Low‐Resolution Infrared Images for FeFET‐Based In‐Memory Computing

Advanced Electronic Materials, EarlyView.
In this work, low‐resolution infrared imaging is combined with a 28 nm FeFET IMC architecture to enable compact, energy‐efficient edge inference. MLC FeFET devices are experimentally characterized, and controlled multi‐level current accumulation is validated at crossbar array level.
Alptekin Vardar, Li Zhang, Alexander Rehmer, Marc Lupp, Subhashree Baskaran, Osama Abdelaal, Franz Müller, Nandakishor Yadav, Bing Li, Thomas Kämpfe   +9 more
wiley   +1 more source

Superlattice-based thin-film thermoelectric modules with high cooling fluxes

Nature Communications, 2016
Current thermoelectric modules provide cooling fluxes that are insufficient for high-heat flux applications. Here, the authors demonstrate thin-film-based thermoelectric modules capable of providing cooling fluxes more than double that of the current ...
Gary Bulman, Phil Barletta, Jay Lewis, Nicholas Baldasaro, Michael Manno, Avram Bar-Cohen, Bao Yang   +6 more
doaj   +1 more source