Results 141 to 150 of about 250,697 (304)

Highly Conductive and Stretchable Photothermal CuSe Fiber for Wearable Electronics and Implantable Drug Release Systems

Advanced Functional Materials, EarlyView.
The conductive and stretchable photothermal CuSe fiber is fabricated for versatile biomedical applications. This CuSe fiber functions as a reliable wearable strain sensor and heater due to its high conductivity, stretchability and photothermal efficiency.
Kukro Yoon, Yukye Lee, Sang Ki Rhee, Hyeonjoo Park, Kyowon Kang, Mingyu Sang, Byeonggwan Kim, Jung Seung Lee, Jaehong Lee, Taeyoon Lee   +9 more
wiley   +1 more source

Topology, Design, and Characteristics of a Modular, Dynamic 100 kA Surge Current Source With Adjustable Current Shape

IEEE Open Journal of Industry Applications
To guarantee sufficient surge current fault protection for power electronic converters, power semiconductors have to be tested under appropriate surge current conditions.
Stefan Wettengel, Andreas Hoffmann, Jonas Kienast, Lars Lindenmuller, Steffen Bernet   +4 more
doaj   +1 more source

Observation of Two‐Photon Resonant Raman Scattering via the Biexciton Level in Two‐Dimensional Halide Perovskite (C6H5C2H4NH3)2PbI4

Advanced Functional Materials, EarlyView.
Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin, Seo Hyun Nam, Jeehong Park, Dong Gyu Lee, Jeong Bin Cho, Tae Jung Kim, Yeonjin Yi, Joon Ik Jang   +7 more
wiley   +1 more source

Semiconductor technology program. Progress briefs [PDF]

The current status of NBS work on measurement technology for semiconductor materials, process control, and devices is reported. Results of both in-house and contract research are covered.
Bullis, W. M.
core   +1 more source

Unlocking Photodetection Mode Switching from a Simple Lateral Design

Advanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong, Keng‐Te Lin, Joel van Embden, Taimur Ahmed, Yumeng Du, Dashen Dong, Yiwen Mai, Junlin Lu, Sumeet Walia, Baohua Jia, Tianyi Ma   +10 more
wiley   +1 more source

Record Energy Storage Performance Metrics in Ferroelectric Hafnia‐Based Films through Heterostructure Design

Advanced Functional Materials, EarlyView.
Dielectric capacitors typically struggle to achieve both high energy storage density and high efficiency at applied voltages below 10 V. Here, we address this challenge by introducing a novel hybrid fluorite/perovskite heterostructure design that combines ultra‐high recoverable energy storage density with efficient energy release (Uf ≈ 1016 J/cm3), at ...
Ampattu R. Jayakrishnan, Nuno Estrócio, Inês Silva, Raluca Negrea, Marian C. Istrate, Koppole C. Sekhar, Luís Marques, Judith L. MacManus‐Driscoll, Ignasi Fina, Florencio Sánchez, José P. B. Silva   +10 more
wiley   +1 more source

Procedure for pressure contact on high-power semiconductor devices free of thermal fatigue [PDF]

To eliminate thermal fatigue, a procedure for manufacturing semiconductor power devices with pure pressure contact without solid binding was developed.
Knobloch, J.
core   +1 more source

Tracing Sub‐Monolayer Contamination on Wafer‐Scale 2D Materials

Advanced Functional Materials, EarlyView.
Sub‐monolayer adventitious carbon contamination limits the performance and reproducibility of 2D material‐based devices. This study demonstrates scanning helium microscopy (SHeM) as a non‐destructive, ultra‐sensitive tool for wafer‐scale imaging of surface cleanliness.
Chenyang Zhao, Sam M. Lambrick, Ke Wang, Shaoliang Guan, Aleksandar Radić, David J. Ward, Andrew P. Jardine, Boyao Liu   +7 more
wiley   +1 more source

Selenium‐Incorporated Polymerized Nonfullerene Acceptors/SWCNT Composites with Polymer‐Assisted n‐Doping for High‐Performance Organic Thermoelectrics

Advanced Functional Materials, EarlyView.
Selenium‐incorporated polymerized nonfullerene acceptor PCB2Se forms a strong supramolecular complex with SWCNTs, enabling a record‐high zT of 0.29. Sequential N‐DMBI doping, mediated through a polymer‐assisted electron‐transfer pathway, successfully converts the PCB2Se/SWCNT composite into an efficient n‐type material with an impressive power factor ...
Chi‐Chun Tseng, Che‐An Chou, Chi Chang, Li‐Lun Yeh, Chien‐Yi Ku, Jhih‐Min Lin, Shih‐Huang Tung, Cheng‐Liang Liu, Yen‐Ju Cheng   +8 more
wiley   +1 more source

A Universal Interfacial Dipole Strategy for Defect Suppression in Inverted Perovskite Solar Cells With Tunable Bandgaps

Advanced Functional Materials, EarlyView.
A 2D heterointerface with a two‐site anchor bridge suppresses nonradiative recombination at the perovskite/C₆₀ interface by reducing surface defects, elevating the Fermi level, and strengthening the electric field. This strategy enables efficient electron extraction, delivering 26.32% efficiency, 1.217 V Voc, excellent operational stability, and broad ...
Chaohui Li, Hyoungwon Park, Fabian Streller, Klaus Götz, Jiwon Byun, Shudi Qiu, Zhangyu Yuan, Jonas Englhard, Andrej Vincze, Zijian Peng, Lirong Dong, Yanxue Wang, Chao Liu, Jingjing Tian, Mingjie Feng, Peichun Liao, Fu Yang, Andreas Späth, Andres Osvet, Thomas Heumueller, Marcus Halik, Silke H. Christiansen, Tobias Unruh, Julien Bachmann, Rainer H. Fink, Ning Li, Larry Lüer, Christoph J. Brabec   +27 more
wiley   +1 more source