Results 51 to 60 of about 683,959 (300)

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

A Very Short-Term Photovoltaic Power Forecasting Model Using Linear Discriminant Analysis Method and Deep Learning Based on Multivariate Weather Datasets

Engineering Proceedings, 2023
Photovoltaic (PV)-system-generated solar energy has inconsistent and variable properties, which makes controlling electric power distribution and preserving grid stability extremely difficult.
Zemouri Nahed, Mezaache Hatem, Chouder Aissa   +2 more
doaj   +1 more source

Simulation of Charge-Equilibration and Acceleration of Solar Energetic Ions [PDF]

, 2000
Recent measurements of the mean ionic charge states of solar energetic iron and silicon by SAMPEX and ACE during the large solar events of 1992 November 1 and 1997 November 6 show a mean ionic charge that increases with energy.
Barghouty, A. F., Mewaldt, R. A.
core   +1 more source

The Enrichment History of Baryons in the Universe

, 2006
We present predictions for the cosmic metal budget in various phases of baryons from redshift z=6-0, taken from a cosmological hydrodynamic simulation that includes a well-constrained model for enriched galactic outflows. We find that substantial amounts
Davé, Romeel, Oppenheimer, Benjamin D.
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

The Back Propagation Neural Network-Based Fill Factor and Efficiency Prediction for Perovskite Solar Cells

Advances in Condensed Matter Physics
The research and development of traditional perovskite solar cells requires significant time and cost for process parameter optimization. To address this issue, this study collected relevant data on perovskite solar cells efficiency and employed a back ...
Beibei Sun, Bin Wang
doaj   +1 more source

Structural Invariance of Sunspot Umbrae Over the Solar Cycle: 1993-2004

, 2010
Measurements of maximum magnetic flux, minimum intensity, and size are presented for 12 967 sunspot umbrae detected on the NASA/NSO spectromagnetograms between 1993 and 2004 to study umbral structure and strength during the solar cycle.
A.A. Norton, A.A. Pevtsov, C.E. Thornton, D.-Y. Chou, E.H. Avrett, F. Albregtsen, F. Albregtsen, F. Socas-Navarro, G. Kopp, H. Alfvén, H.P. Jones, H.P. Jones, H.P. Jones, H.P. Jones, I. Rüedi, J.H.M.J. Bruls, J.J. Brants, K.J. Li, L. Biermann, M. J. Penn, M. Schüssler, M.J. Penn, M.J. Penn, M.J. Wesolowski, M.P. Rast, P.N. Brandt, S.K. Mathew, T. A. Schad, T. Leonard, T.J. Bogdan, V. Martínez Pillet, W. Deinzer, W. Livingston, W. Livingston, Y.-J. Moon   +34 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Optimal Placement of Hybrid Wind-Solar System Using Deep Learning Model

International Journal of Photoenergy, 2022
In this paper, we develop an optimal placement of solar-wind energy systems using restricted Boltzmann machine (RBM). The RBM considers various factors to scale the process of optimal placement and enables proper sizing and placement for attaining ...
Sundeep Siddula, G. K. Prashanth, Praful Nandankar, Ram Subbiah, Saikh Mohammad Wabaidur, Essam A. Al-Ammar, M. H. Siddique, Subash Thanappan   +7 more
doaj   +1 more source

On the origin of the double cell meridional circulation in the solar convection zone

, 2018
Recent advances in helioseismology, numerical simulations and mean-field theory of solar differential rotation have shown that the meridional circulation pattern may consist of two or more cells in each hemisphere of the convection zone. According to the
Kosovichev, A. G., Pipin, V. V.
core   +1 more source