Results 171 to 180 of about 29,657 (268)

Red-light-excited dynamic near-infrared organic afterglow materials for in vivo bioimaging. [PDF]

Light Sci Appl
Zhou L, Yang J, He Z, Wu Z, Jiang P, Song J, Ma L, Tian H, Ma X.   +8 more
europepmc   +1 more source

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

Ink-Printed Thermoelectric Materials and Devices: Material Preparation, Fabrication Techniques, and Applications. [PDF]

Small Sci
Shao J, Li L, Yang M, Huang J, Zhang N, Pinitsoontorn S, Sun Q, Luo H, Wu H.   +8 more
europepmc   +1 more source

Temperature‐Driven Emission Redistribution of Yb2+ in SrB4O7 Enables Highly Sensitive Optical Thermometry Supported by Multiple Linear Regression

Advanced Science, EarlyView.
A novel optical thermometer exploits the rare UV emission of Yb2+ ions in a SrB4O7 host, enabling highly sensitive, non‐contact temperature measurements from 80 to 420 K. The applied multiple linear regression (MLR) analysis results in a multiple increase in the resulting temperature sensitivity.
Fang Zhao, Teng Zheng, Przemysław Woźny, Miguel A. Hernández‐Rodríguez, Shiqing Xu, Inocencio R. Martín, Marcin Runowski   +6 more
wiley   +1 more source

Solvent-mediated hydrothermal synthesis of K/Bi-doped [Ba_(1-<i>x</i>)K _<i>x</i> ][Bi_(1-<i>y</i>)Ti _<i>y</i> ]O₃ perovskites: structure-property relationships and bandgap engineering. [PDF]

RSC Adv
Sarowar MG, Kabir Rubel MH.
europepmc   +1 more source

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, EarlyView.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

Build-up shielding-factors, physical, & mechanical properties of Er³⁺ doped borophosphate glasses with varied Bi₂O₃ content. [PDF]

RSC Adv
Abo-Mosallam HA, Abdelglil MI, Bayoumi EE, El-Seidy AMA.   +3 more
europepmc   +1 more source

Asymmetric Electrostrain/Electrobending in Piezoelectric Ceramics: Role of Defect Dipoles or Oxygen Vacancies

Advanced Science, EarlyView.
Defect‐configurational origins of the asymmetric apparent electrostrain are revealed in different piezoelectric ceramics via atomic‐scale visualization of defect configurations. Migration of oxygen vacancies leads to the electrobending effect in N2‐sintered BaTiO3, while defect dipoles in Ba0.99TiO2.99 generate true asymmetric electrostrain without ...
Jie Wang, Geng Huangfu, Hongjie Zhang, Tiannan Yang, Zhenhua Ma, Jingsheng Chen, Yun Liu, Yiping Guo   +7 more
wiley   +1 more source

Influence of the Nd³⁺ Dopant Content in Bi₃TeBO₉ Powders on Their Optical Nonlinearity. [PDF]

Materials (Basel)
Chrunik M, Bubnov A, Minikayev R, Lysak A, Włodarczyk D, Nowicki M, Chlanda A, Michalska-Domańska M, Szczęśniak B, Gratzke M.   +9 more
europepmc   +1 more source

Local Polarization Unit Engineering Enables Ultrahigh Energy Density in NBT‐Based High‐Entropy Ceramic Capacitors

Advanced Science, EarlyView.
Herein, we demonstrate a breakthrough in dielectric energy storage by engineering local polarization units in high‐entropy multilayer ceramic capacitors (MLCCs). The optimized MLCCs achieve an ultrahigh recoverable energy density of 18.2 J cm−3 with 91% efficiency, coupled with exceptional thermal stability and fatigue resistance.
Shiyu Zhou, Yucheng Zhou, Linhai Li, A. Pelaiz‐Barranco, Xuefeng Chen, Genshui Wang, Yiwei Chen, Rongjiang Wang, Konstantin Nefedev, Tengfei Hu, Dawei Wang, Tongqing Yang   +11 more
wiley   +1 more source