Results 81 to 90 of about 37,521 (247)

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source

Simple Proofs of Classical Explicit Reciprocity Laws on Curves Using Determinant Groupoids over an Artinian Local Ring

, 2007
The notion of determinant groupoid is a natural outgrowth of the theory of the Sato Grassmannian and thus well-known in mathematical physics. We briey sketch here a version of the theory of determinant groupoids over an artinian local ring, taking ...
Greg W. Anderson, Local Ring, Fernando Pablos Romo, An Artinian   +3 more
core  

Measurement Based Reconfigurations in Optical Ring Metro Networks [PDF]

, 2005
Single-hop wavelength division multiplexing (WDM) optical ring networks operating in packet mode are one of themost promising architectures for the design of innovative metropolitan network (metro) architectures. They permit a cost-effective design, with
J. M. FINOCHIETTO, Giarratana, G., G. GIARRATANA, Neri, Fabio, C. PIGLIONE, Finochietto, J.M., Bianco, Andrea, Piglione, C.   +7 more
core   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

Advanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk, Yihao Yuan, Augustin Caillas, Amel Saidoun, Roméo Bonnet, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron   +7 more
wiley   +1 more source

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

Advanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko, Seongchan Kim, Jun‐Hyeok Han, Sanghee Lee, Minji Ahn, Hong En Fu, Young Jun Jang, Yoo Sang Jeon, Weiguo Li, Young Keun Kim, Dong‐Hyun Kim   +10 more
wiley   +1 more source

Assessment of restrained shrinkage cracking of concrete through elliptical rings [PDF]

, 2014
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.An elliptical ring test method is presented to replace the circular ring test method for assessing cracking potential of concrete and other cement-based ...
Oladiran, Olayinka Gbolahan
core  

Volcanic cooling signal in tree ring temperature records for the past millennium

, 2013
The authors acknowledge the National Science Foundation for funding much of the research presented herein. RW's Scottish work is currently funded through the UK Leverhulme Trust and Natural Environment Research Council (NERC) projects, “RELiC ...
Anchukaitis, Kevin, Anchukaitis, Kevin J., D'Arrigo, Rosanne Dorothy, D'Arrigo, Rosanne, Rosanne D'Arrigo, Wilson, Rob, Kevin J. Anchukaitis, Wilson, Robert J., Rob Wilson   +8 more
core   +1 more source

Controlled Engineering of 2D Alkali‐Iron‐Chloride Compounds and Lateral Quantum Heterostructures Within Confined Graphene Nanoreactors

Advanced Functional Materials, EarlyView.
This work presents a programmable atomic engineering strategy for 2D materials using Å‐scale nanoreactors formed by bilayer graphene (BLG) intercalation. A new class of alkali‐iron‐chloride compounds, along with lateral heterostructures composed of monolayer alkali halides and iron chlorides, is revealed.
Haiming Sun, Qiunan Liu, Yung‐Chang Lin, Mahdi Ghorbani‐Asl, Hiroki Ago, Arkady V. Krasheninnikov, Kazu Suenaga   +6 more
wiley   +1 more source

Current-Induced Crossover of Flux Periodicity from h/2e to h/e in a Superconducting Nb Nano-Ring

, 2018
Magnetoresistance measurements in a granular Nb nanoring reveal current-induced crossover between two distinct quantum coherence effects. At low bias currents, Cooper-pair coherence is manifested by Little–Parks oscillations with flux periodicity of h/2e.
Omri Sharon (5953928), Jorge Berger (5953934), Amos Sharoni, Yosef Yeshurun (354302), Yosef Yeshurun, Jorge Berger, Avner Avraham Shaulov (5953931), Amos Sharoni (5953937), Richard Berkovits (5953940), Avner Avraham Shaulov, Richard Berkovits, Omri Sharon   +11 more
core   +1 more source