Results 101 to 110 of about 20,861 (259)

Balancing Effective Mass and Carrier Mobility via Ga‐Induced Multi‐Band Valley Engineering in GeTe Thermoelectrics

Advanced Science, EarlyView.
Ga doping drives simultaneous convergence of three valence bands and formation of a midgap band in Ge0.94Bi0.06Te, enhancing the Seebeck coefficient without sacrificing carrier mobility. Lattice vibration disorder and multi‐scale defect engineering suppress lattice thermal conductivity, delivering a ZT exceeding 2.1 and enabling efficient lead‐free ...
Jianglong Zhu, Yan Zhong, Xiang An, Huangshui Ma, Jie Zheng, Huagang Xiao, Shiyuan Zhan, Pingan Song, Min Hong, Ran Ang   +9 more
wiley   +1 more source

Controlled Moderate Interfacial Reaction Facilitates High‐Strength Low‐Resistivity Barrier Layer for Half‐Heusler Thermoelectrics

Advanced Science, EarlyView.
The barrier layer is designed comprehensively by thermal expansion coefficient and interfacial reaction energy to yield a controlled interfacial reaction. Ultimately, the Co25Fe50Ni25/half‐Heusler joint simultaneously achieves low contact resistivity and high bonding strength.
Jian Liang, Shuyue Tan, Lifeng Jiang, Wen Zhang, Hongda Song, Xinghui Wang, Haiping Guo, Huijun Kang, Rongchun Chen, Enyu Guo, Zongning Chen, Tongmin Wang   +11 more
wiley   +1 more source

Layered Tin Chalcogenides SnS and SnSe: Lattice Thermal Conductivity Benchmarks and Thermoelectric Figure of Merit. [PDF]

J Phys Chem C Nanomater Interfaces, 2022
Rundle J, Leoni S.
europepmc   +1 more source

Improving the Thermoelectric Properties of Conjugated Polymer Thin Films by Dip Coating – but not through Alignment

Advanced Electronic Materials, EarlyView.
The study demonstrates that dip coating at lower speeds significantly enhances the thermoelectric performance of P3HT by improving electrical conductivity. Contrary to expectations, this improvement is seemingly not due to polymer alignment but rather to better structural order achieved during slower solvent evaporation at lower dip coating speeds ...
Morteza Shokrani, Andrey Alekseevich Butkevich, Martijn Kemerink   +2 more
wiley   +1 more source

Three-terminal semiconductor junction thermoelectric devices: improving performance

New Journal of Physics, 2013
A three-terminal thermoelectric device based on a p–i–n semiconductor junction is proposed, where the intrinsic region is mounted onto what is typically a bosonic thermal terminal.
Jian-Hua Jiang, Ora Entin-Wohlman, Yoseph Imry   +2 more
doaj   +1 more source

Transition from n- to p-type conduction concomitant with enhancement of figure-of-merit in Pb doped bismuth telluride: Material to device development

Materials & Design, 2018
The majority of industrial, automobile processes, electrical appliances emit waste heat in the low-temperature range (
Anil K. Bohra, Ranu Bhatt, Ajay Singh, Shovit Bhattacharya, Ranita Basu, K.N. Meshram, Shaibal K. Sarkar, Pramod Bhatt, P.K. Patro, D.K. Aswal, K.P. Muthe, S.C. Gadkari   +11 more
doaj   +1 more source

Atomic Level Defect Structure Engineering for Unusually High Average Thermoelectric Figure of Merit in n-Type PbSe Rivalling PbTe. [PDF]

Adv Sci (Weinh), 2022
Ge B, Lee H, Huang L, Zhou C, Wei Z, Cai B, Cho SP, Li JF, Qiao G, Qin X, Shi Z, Chung I.   +11 more
europepmc   +1 more source

Thermoelectric Properties of a Family of Benzodifuranone‐Based Conjugated Copolymers in Oriented Thin Films Doped Sequentially With NDMBI‐H

Advanced Electronic Materials, EarlyView.
Combining high polymer orientation of n‐type copolymers by temperature rubbing and sequential doping with N‐DMBI results in a strong improvement of electrical conductivity and thermoelectric power factors reaching up to 9.8 ± 1.6 S cm−1 and 8 ± 3 µW m−1.K2, respectively.
Shubhradip Guchait, Diego R. Hinojosa, Nathan James Pataki, Said Oummouch, Laurent Herrmann, Mario Caironi, Michael Sommer, Martin Brinkmann   +7 more
wiley   +1 more source

Ionic Coordination and Hierarchical Architecture Enable Record n‐Type Thermoelectric Efficiency in Soft Hydrogels

Angewandte Chemie, EarlyView.
A Zn2+‐coordinated BMIM–ZnBr ionogel forms a rigid cationic scaffold and a directed anion‐migration channel, enabling pronounced thermodiffusion and an exceptional ionic Seebeck coefficient of −128 mV K−1, a high power factor of 16.7 µW cm−1 K−2, and a promising ZT of 1.1 at room temperature for harvesting low‐grade heat.
Chenyang Zhang, Xiao‐Lei Shi, Xujiang Chao, Mingxu Wang, Wenyi Chen, Qian Liu, Tianyi Cao, Boxuan Hu, Shuai Sun, Zhi‐Gang Chen   +9 more
wiley   +2 more sources

Understanding the Interplay Between Thermal Activation, Diffusion, and Phase Segregation of Molecular Dopants Blended with Polymeric Semiconductors

Advanced Electronic Materials, EarlyView.
The use of air stable but thermally labile molecules provides an efficient strategy for the N‐type doping of organic semiconductors with relatively low electron affinities. Design criteria for efficient dopants should also take into account diffusion and phase segregation that cannot be decoupled from thermally activated doping.
Francesca Pallini, Sara Mattiello, Mauro Sassi, Gabriele Paoli, Giuseppe Mattioli, Pietro Rossi, Giulia Coco, Alberto D. Scaccabarozzi, Brian Minki Kim, Pietro Mariani, Hiba Wakidi, Sadie M. Flagg, Massimiliano D'Arienzo, Mario Caironi, Thuc‐Quyen Nguyen, Luca Beverina   +15 more
wiley   +1 more source