Results 71 to 80 of about 16,086 (263)

Role of the Recombination Zone in Organic Light‐Emitting Devices

open access: yesAdvanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Flexible Ag2Se‐Based Thermoelectrics: Fundamentals, Processing, and Device Applications

open access: yesAdvanced Materials, EarlyView.
Ag2Se‐based thermoelectrics are reviewed from fundamental transport mechanisms to flexible device integration. Crystal structure, defect chemistry, and band features are correlated with performance optimization strategies and scalable fabrication routes.
Jie Qin   +5 more
wiley   +1 more source

Enhanced thermal transport analysis of electromagnetic hybrid nanofluid flow in a variable Darcy porous medium with mixed convection and Thompson–Troian slip

open access: yesJournal of Taibah University for Science
This work examines thermal transport of electrohydromagnetic (EMHD) hybrid nanofluid flow (HNF) through a variable Darcy regime. The flow is affected by suction and blowing effects when flowing on the surface of a sheet in combination of mixed convective
Humaira Yasmin   +3 more
doaj   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?

open access: yesAdvanced Materials, EarlyView.
The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley   +1 more source

Thermal Robustness Redesign of Electromagnet Under Multi-Physical Field Coupling

open access: yes
AbstractAiming at the durability problem of the proportional electromagnet used in the proportional valve of engineering machinery, in order to improve its thermal failure resistance under random load conditions, a parametric redesign model of the proportional electromagnet was proposed based on the multi-physics coupling theory and robust optimization
Chenyu Liu, Anlin Wang, Xiaotian Li
openaire   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Feasibility study of rare earth free electrically-excited machine technology for EV powertrain: Electromagnetic-Thermal performance evaluation with model-based design approach

open access: yesCase Studies in Thermal Engineering
This study investigates the feasibility of rare-earth-free electric machine technologies for electric vehicle powertrains by comparing the electromagnetic and thermal performance of an electrically excited synchronous machine (EESM) and an interior ...
Vu-Khanh Tran   +6 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

Temperature field analysis of linear traction motors based on equivalent magnetic-thermal network coupling

open access: yes机车电传动
In modern rail transit systems such as maglev trains, metros, and light rails, linear traction motors exhibit significant technical advantages over conventional rotary motors. Their core innovation lies in eliminating intermediate transmission components
ZHANG Guoqiang, DU Jinhua
doaj  

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