Results 61 to 70 of about 2,364 (190)

Exfoliated Bi2Te3 nanoparticle suspensions and films: morphological and nonlinear optical characterization

Nanophotonics, 2021
Bismuth telluride nanoparticles (NPs) attract attention due to the growth of sensitivity of the Bi2Te3 NPs-containing registrars in the near- and mid-infrared ranges.
Ganeev Rashid A., Popov V. S., Zvyagin A. I., Lavrentyev N. A., Mirofyanchenko A. E., Mirofyanchenko E. V., Shuklov I. A., Ovchinnikov O. V., Ponomarenko V. P., Razumov V. F.   +9 more
doaj   +1 more source

Tailoring Multifunctional Carbon Dots via Precursor Stoichiometry: Switching Between Solid‐State Fluorescence and Broadband Absorption Through Aggregation Control

Advanced Science, EarlyView.
Precursor stoichiometry programs the surface chemistry of carbon dots, directing their self‐assembly into distinct aggregation modes. Aldehyde‐enriched surfaces form ordered, hydrogen‐bonded assemblies that enable bright red solid‐state fluorescence, whereas amine‐rich surfaces promote compact π–π stacked aggregates with broadband visible‐light ...
Gaixia Yang, Hao Sun, Defa Hou, Fulin Yang, Yuan Zou, Bei Zhou, Lanxiang Liu, Xu Lin, Guanben Du   +8 more
wiley   +1 more source

Bi2Te3-Sb2Te3-Bi2Te3 Lateral Heterostructures Grown by Molecular Beam Epitaxy

Lateral in-plane heterostructures enable precise control of electronic properties and quantum effects in 2D materials. However, their periodic synthesis is challenging because it requires precise control to maintain sharp, coherent interfaces and compatible growth conditions across different domains.
Guha, Puspendu, Lee, Sangmin, Lee, Eunsu, Bae, Hyeonhu, Lee, Hoonkyung, Kim, Miyoung, Yi, Gyu-Chul   +6 more
openaire   +2 more sources

Interface optimization for low-contact resistance between bismuth telluride and barrier metals in thermoelectric generation devices

AIP Advances
Thermoelectric generation (TEG) devices with bismuth telluride (Bi2Te3) are most advanced toward commercialization. However, contact resistance at the interface between Bi2Te3 and the barrier metal hinders the thermoelectric conversion efficiency and ...
Akihiro Katsura, Maki Tsurumoto, Aiji Suetake, Yukiko Hirose, Daniele Micucci, Tohru Sugahara   +5 more
doaj   +1 more source

Multifaceted Roles of Tantalum in Promoting the Thermoelectric Performance of Mg3(Sb,Bi)2 Based Materials

Advanced Science, EarlyView.
A multifunctional tantalum incorporation strategy enables simultaneous tuning of carrier concentration, mitigation of grain‐boundary scattering, and enhanced phonon scattering in Mg3(Sb,Bi)2. These synergistic effects markedly improve carrier mobility and suppress lattice thermal conductivity, yielding both high material zT and high module conversion ...
Guangmeng You, Jingdan Lei, Kai Xu, Yuntian Fu, Xueke Gu, Chengxiao Peng, Zhen Wang, Jing Chen, Kunpeng Zhao, Chao Wang   +9 more
wiley   +1 more source

Interfacial Superconductivity and Zero Bias Peak in Quasi‐One‐Dimensional Bi2Te3/Fe1+yTe Heterostructure Nanostructures

Advanced Electronic Materials, 2023
Bismuth telluride/iron telluride (Bi2Te3/Fe1+yTe) heterostructures are known to exhibit interfacial superconductivity between two non‐superconducting materials: Fe1+yTe as the parent compound of Fe‐based superconducting materials and the topological ...
Man Kit Cheng, Cheuk Yin Ng, Sui Lun Ho, Omargeldi Atanov, Wai Ting Tai, Jing Liang, Rolf Lortz, Iam Keong Sou   +7 more
doaj   +1 more source

Embedded Direct‐Written Organic Micro‐TEGs for High‐Efficiency Skin‐Heat Harvesting

Advanced Electronic Materials, EarlyView.
A finite‐element–guided design of direct‐written organic micro‐thermoelectric generators is presented for efficient skin‐heat harvesting. Embedding PEDOT:PSS/PBFDO thermoelectric legs within flexible substrates suppresses interfacial heat losses and enhances vertical heat flow.
Milad Jabri, Saeed Masoumi, Dimitrios Paparas, Mónica Acuautla, Luigi Giuseppe Occhipinti   +4 more
wiley   +1 more source

Topological Materials and Related Applications

Advanced Electronic Materials, EarlyView.
This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti, Roberto Mantovan, Emanuele Longo, Harold J. W. Zandvliet, Pantelis Bampoulis, Yu Pan, Fan Li, Xia Wang, Payton Downey, Alessandro Molle   +9 more
wiley   +1 more source

Microstructure and Electrical Characterization of Thermoelectric Nanocrystalline Bi2 Te3 Synthesized by Mechanical Alloying [PDF]

Materials Research
Nanocrystalline bismuth telluride, Bi2Te3 has been synthesized by mechanical alloying (MA) the powder mixture composed of Bi and Te in the inert gas atmosphere within a short duration of 15 min.
Saikat Kumar Kanta, Shrabani Paul, Tuli Chatterjee, Hema Dutta, Swapan Kumar Pradhan   +4 more
doaj   +2 more sources

Rare‐Earth Yttrium Doping Advances High‐Performance AgSbTe2 Thermoelectrics

Advanced Energy Materials, EarlyView.
Y‐doped AgSbTe2 achieves band and microstructure co‐optimization, with coherent Y‐Ag2Te interfaces enhancing phonon scattering and reducing lattice thermal conductivity to 0.26 W m−1 K−1. Combined with valence‐band broadening and increased carrier concentration, this yields ZT ≈ 2 at 623 K, average ZT = 1.5, and 7.3 % conversion efficiency of a single ...
Lan Li, Xiao‐Lei Shi, Min Zhang, Siqi Liu, Meng Li, Nanhai Li, Tianyi Cao, Boxuan Hu, Qingyi Liu, Raza Moshwan, Mahboobeh Shahbazi, Zhi‐Gang Chen   +11 more
wiley   +1 more source