Results 81 to 90 of about 72,633 (314)

A review of solar collectors and thermal energy storage in solar thermal applications [PDF]

, 2013
Thermal applications are drawing increasing attention in the solar energy research field, due to their high performance in energy storage density and energy conversion efficiency. In these applications, solar collectors and thermal energy storage systems
Zhao, Changying, Tian, Yuan, Tian, Y. (Yuan), Zhao, C.Y.   +3 more
core   +1 more source

Studying 630 nm atomic oxygen emission sources during strong magnetic storms in the night mid-latitude ionosphere

Solar-Terrestrial Physics, 2019
We analyze significant increases in 630 nm atomic oxygen night emissions during very strong geomagnetic storms, using optical measurements, theoretical modeling, and magnetogram inversion technique (MIT) data.
Leonovich L.A., Tashchilin A.V., Lunyushkin S.B., Karavaev Yu.A., Penskikh Yu.V.   +4 more
doaj   +1 more source

Device Physics of Dye Solar Cells [PDF]

Advanced Materials, 2010
AbstractDesign of new materials for nanostructured dye solar cells (DSC) requires understanding the link between the material properties and cell efficiency. This paper gives an overview of the fundamental and practical aspects of the modeling and characterization of DSCs, and integrates the knowledge into a user‐friendly DSC device model.
Vahermaa, Paula, Miettunen, Kati, Lund, Peter, Halme, Janne   +4 more
openaire   +3 more sources

Mechanistic Control of C─H Bond Activation and C─C Coupling in Light‐Driven Methane Conversion to C2+ Products over Multifunctional Photocatalysts

Advanced Functional Materials, EarlyView.
Methane photocatalytic activation under mild conditions remains a formidable challenge in the synthesis of solar fuels. In this review, we emphasize the growing importance of multifunctional materials and hybrid systems within a unified mechanistic framework that integrates selective C─H bond activation, formation and control of intermediates, C─C ...
Di Hu, Yuheng Jiang, Vitaly V. Ordomsky, Bastian Mei, Zhiyong Tang, Andrei Y. Khodakov   +5 more
wiley   +1 more source

Prospective IS-MST radar. Potential and diagnostic capabilities

Solar-Terrestrial Physics, 2016
In the next few years, a new radar is planned to be built near Irkutsk. It should have capabilities of incoherent scatter (IS) radars and mesosphere-stratosphere-troposphere (MST) radars [Zherebtsov et al., 2011].
Potekhin A.P., Setov A.G., Lebedev V.P., Medvedev A.V., Kushnarev D.S.   +4 more
doaj   +1 more source

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

Advanced Functional Materials, EarlyView.
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh, Woo Jin Mun, Kamran Dastafkan, Matyas Daboczi, Hongki Kim, Humza Bhatti, Eunyoung Hong, Minzhi Chen, Yongqi Huang, Jin Hyuk Kim, Nicola Gasparini, Jong Hak Kim, Salvador Eslava   +12 more
wiley   +1 more source

Dynamics of the level of total electron content disturbance at high and middle latitudes according to GPS data

Solar-Terrestrial Physics, 2016
We study the level of total electron content (TEC) disturbance in ionospheric mid-latitude and high-latitude regions, which occurred during 2013. TEC behavior is calculated using data from two GPS stations: MOND (Mondy) and NRIL (Norilsk). TEC variations
Perevalova N.P., Edemsky I.K., Timofeeva O.V., Katashevtseva D.D., Polyakova A.S.   +4 more
doaj   +1 more source

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

Advanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam, Wejdan Althobaiti, Safakath Karuthedath, Christopher E. Petoukhoff, Amr Dahman, Khawla Alkhezaim, Oleksandr Matiash, José P. Jurado, Mariia Ferree, Ning Su, Jacob Blaskovits, Denis Andrienko, Vladimir Dyakonov, Andreas Sperlich, Vojtech Nádaždy, Tobin J. Marks, Antonio Facchetti, Frédéric Laquai   +17 more
wiley   +1 more source

Characterisation of carbon nanotube variability and application in solar cells [PDF]

, 2011
Photovoltaic solar cells (PVs) are now recognised as the world’s fastest growing energy technology, yet, they only account for a mere fraction of current global renewable power capacity. It is acknowledged that this inadequate market penetration has been
El Shabrawy, Karim
core  

Analyzing the behavior of mid-latitude upper atmosphere ionospheric plasma and airglow I630 from IS radar and Fabry—Perot interferometer data

Solar-Terrestrial Physics
The dynamics of the parameters of ionized and neutral components of Earth’s upper atmosphere at midlatitudes near the equinox was studied for several days under quiet geomagnetic conditions.
Vasilyev Roman, Edemsky Ilya, Shelkov Aleksei, Artamonov Maksim, Alsatkin Sergei, Evseev Uigulan, Lebedev Valentin, Tashlykov Viktor, Tashchilin Anatoliy, Timchenko Aleksandr   +9 more
doaj   +1 more source