Results 71 to 80 of about 3,053,596 (287)

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source

A New Methodology for Inferring the Plasma Conditions in Solar Flare Energetic Electron Source Regions from In Situ Electron Energy Spectra

The Astrophysical Journal Supplement Series
The conditions within solar flares that lead to efficient electron acceleration are not well constrained. It is not clear whether the populations accelerated out into the heliosphere and inward into the chromosphere originate in the same regions.
Samuel Carter, Natasha L. S. Jeffrey, Robert T. Wicks, Georgios Nicolaou   +3 more
doaj   +1 more source

The relativistic solar particle event of May 17th, 2012 observed on board the International Space Station

Journal of Space Weather and Space Climate, 2014
High-energy charged particles represent a severe radiation risk for astronauts and spacecrafts and could damage ground critical infrastructures related to space services.
Berrilli Francesco, Casolino Marco, Del Moro Dario, Di Fino Luca, Larosa Marianna, Narici Livio, Piazzesi Roberto, Picozza Piergiorgio, Scardigli Stefano, Sparvoli Roberta, Stangalini Marco, Zaconte Veronica   +11 more
doaj   +1 more source

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

Advanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee, Geumha Lim, Wookyung Jeon, Seongju Park, Jinwoo Chu, Yohan Yoon, William Jo, Byungha Shin   +7 more
wiley   +1 more source

The effect of colour on the thermal performance of building integrated solar collectors [PDF]

, 2010
The use of solar collectors with coloured absorbers for water heating is an area of particular interest when considering their integration with buildings.
Carson, James K., Duke, Mike, Anderson, Timothy Nicholas   +2 more
core   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Upper-mesospheric temperatures measured during intense substorms in the declining phase of the January 2005 solar proton events [PDF]

, 2008
Temperature measurements from the ALOMAR Weber Na lidar together with cosmic radio noise absorption measurements from IRIS and particle measurements from NOAA 15, 16 and 17 are used to study effects of geomagnetic activity on the polar winter upper ...
J. Stadsnes, H. Nesse Tyssøy, Honary, F., D. Heinrich, Nesse Tyssøy, H.N., Williams, B.P., Heinrich, D., B. P. Williams, D. S. Evans, F. Honary, Stadsnes, J., Hoppe, U.P., U.-P. Hoppe, Sorbo, M., Evans, D.S., M. Sørbø   +15 more
core   +2 more sources

Kinetic Processes to Radio Burst: First Observational-driven Study in Coronal Loops

The Astrophysical Journal
Understanding the origin of coherent solar radio bursts requires linking macroscopic coronal structures with the kinetic processes responsible for wave generation.
Mehdi Yousefzadeh, Marian Karlický, Artem Koval, Alena Zemanova, Yao Chen, Jun Lin   +5 more
doaj   +1 more source

Electron acceleration and transport in the 2023-03-06 solar flare

Frontiers in Astronomy and Space Sciences
We investigated in detail the M5.8 class solar flare that occurred on 2023-03-06. This flare was one of the first strong flares observed by the Siberian Radioheliograph in the microwave range and the Advanced Space-based Solar Observatory in the X-ray ...
Alexey Kuznetsov, Alexey Kuznetsov, Zhao Wu, Zhao Wu, Sergey Anfinogentov, Yang Su, Yao Chen, Yao Chen, Yao Chen   +8 more
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source