Results 111 to 120 of about 9,339 (291)

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

Space Charge Accumulation in Silicone Rubber Influenced by Poole-Frenkel Effect

MATEC Web of Conferences, 2018
With the rapid increase of electrical energy consumption in metropolises, more and more power cables are utilized in power grid or urban power network to transmit and distribute electrical energy.
Kang Wenbin, Meng Shaoxing, Cui Haozhe, Li Yuwei, Mi Rui, Yan Chenyu, Li Shijun, Min Daomin   +7 more
doaj   +1 more source

A theoretical study of bipolar organic transport material: Disilanyl double-pillared bisanthracene (^SiDPBA)

, 2011
A novel anthracene derivative, disilanyl double-pillared bisanthracene (SiDPBA), has been recently synthesized, which effectively functions as a bipolar carrier transport material in OLEDs.
Zong-Hao Huang, Hai-Lin Fan, Gui-Xia Yang, Xiao-Di Niu   +3 more
core   +1 more source

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

Advanced Science, EarlyView.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan, Quan Xiong, Jonathan William Ambrose, Zeynep Altundal, Raye Chen‐Hua Yeow   +4 more
wiley   +1 more source

Coupling Charge‐Regulated Interfacial Chemistry to Electrokinetic Ion Transport in Bipolar SiO2‐Al2O3 Nanofluidic Diodes

Advanced Materials Interfaces
Due to the surface‐dominant nature of electrokinetic ion transport in confined geometries, ionic currents in nanofluidic channels are fundamentally governed by the interfacial chemistry of the constituent substrates.
Alexander Eden, Sumita Pennathur
doaj   +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

Bipolar problem of space-charge in dielectric : II. System with trapping. [PDF]

, 2008
A model of dielectric with bipolar injection of charge and with trapping taken into account is presented. Charge transport was described by partial differential equations in the system of plane parallel capacitor.
Swistacz, B
core   +1 more source

Asymmetric Structural Engineering of Hot‐Exciton Emitters Achieving a Breakthrough in Non‐Doped BT.2020 Blue OLEDs with a Record 9.5% External Quantum Efficiency

Advanced Science
High‐efficiency non‐doped deep‐blue organic light‐emitting diodes (OLEDs) meeting the standard of BT.2020 color gamut is desired but rarely reported.
Bingzhu Ma, Baijun Zhang, Han Zhang, Yu Huang, Lu Liu, Baoling Wang, Dezhi Yang, Dongge Ma, Ben Zhong Tang, Zhiming Wang   +9 more
doaj   +1 more source

Studies into the underlying mechanisms of organic magnetoresistance

, 2012
PhDThe organic magnetoresistance effect has been observed to alter the current and efficiency of organic light emitting diodes where no magnetic materials are present. As yet, no consensus has been reached in the literature regarding the origin of the
Rolfe, Nicola Jayne
core  

Ion Rejection Properties of Nanopores with Bipolar Fixed Charge Distributions

, 2016
Ion rejection properties of cylindrical nanopores with bipolar fixed charge distributions have been investigated theoretically by means of an approximate model based on the Poisson−Nernst−Planck (PNP) theory and accounting for the electroosmosis ...
Béatrice Balannec (2276485), Haochen Zhu (2276488), Anthony Szymczyk (1691857)   +2 more
core   +1 more source