Results 121 to 130 of about 8,944 (306)

Spectral signature of ultraviolet solar irradiance in Zacatecas

Geofísica Internacional, 2006
En este trabajo se presenta un análisis de la radiación espectral global ultravioleta (290-400 nm) registrada en Zacatecas, una ciudad vecina al trópico de cáncer, situada a 2500 m sobre el nivel del mar, latitud de 22°N y longitud de 102°O. Los espectros correspondientes han sido medidos mediante un espectroradiómetro Bentham con un paso de 0.5 nm de ...
J. L. Pinedo V., F. Mireles G., C. Ríos M., L. L. Quirino T., J. I. Dávila R.   +4 more
openaire   +4 more sources

Tandem Electrolysers for High‐Efficiency CO2‐to‐Acetate Conversion Driven by Full‐Spectrum Solar Energy

Carbon Energy, EarlyView.
A full‐spectrum solar‐driven tandem electrolysis system enables efficient CO2‐to‐acetate conversion by spectrally splitting sunlight and coupling high‐temperature SOEC CO2‐to‐CO electrolysis with ambient CO reduction. The integrated design achieves a solar‐to‐acetate efficiency of 15.8%, demonstrating effective energy‐quality matching for solar carbon ...
Shangchun Su, Zongkang Wang, Jianhong Liu, Xiangyu Liu, Zhan Wu, Zhenyu Tian, Feifei Wang, Wenjia Li, Jian Jin   +8 more
wiley   +1 more source

Case study of the mesospheric and lower thermospheric effects of solar x-ray flares: Coupled ion-neutral modelling and comparison with EISCAT and riometer measurements [PDF]

, 2008
Two case studies of upper mesospheric and lower thermospheric (UMLT) high-latitude effects of solar X-ray flares are presented. Sodankylä Ion-neutral Chemistry Model (SIC) electron density profiles agree with D-region EISCAT and riometer ...
Beharrell, M.J., A. Seppälä, Verronen, P.T., Seppälä, A., Ulich, T., C.-F. Enell, Enell, C.-F., Honary, F., P. T. Verronen, J. P. Vierinen, T. Ulich, A. Kero, E. Turunen, M. J. Beharrell, Vierinen, J.P., Turunen, E., F. Honary, Kero, A.   +17 more
core   +1 more source

Boosting Bifacial Output Power of Ag‐CIGS Solar Cells by Optimizing ITO Back‐Contact Thickness for Tandem Applications

Carbon Energy, EarlyView.
Optimized ITO back contact with pre‐Ga supply growth and Ag incorporation suppresses GaOx formation and interface recombination in bifacial CIGS solar cells. The devices achieve 17.25% front and 5.77% rear efficiency, delivering record bifacial power density up to 32.26 mW cm−2 in 4T perovskite/CIGS tandem architectures under enhanced albedo ...
Amanat Ali, Dae‐Ho Son, Wook Hyun Kim, Hyo Jeong Jo, Dong‐Hwan Jeon, Won‐Joon Kim, Van‐Quy Hoang, Jaebaek Lee, Bashiru Kadiri‐English, Jin‐Kyu Kang, Kee‐Jeong Yang, Shi‐Joon Sung, Dae‐Kue Hwang, Dae‐Hwan Kim   +13 more
wiley   +1 more source

Parameters and method to evaluate the solar reflectance properties of reflector materials for concentrating solar power technology - Official SolarPACES reflectance guideline verstion 2.5

, 2013
The goal of this document is to serve as guidance on the relevant parameters and measurement possibilities to reliably evaluate the reflectance quality of a solar reflector material.
Meyen, Stephanie, and , others
core  

Investigation of a cloud-cover modification to SPCTRAL2, SERI's simple model for cloudless-sky, spectral solar irradiance [PDF]

, 1987
This report summarizes the investigation of a cloud-cover modification to SPCTRAL2, SERI's simple model for cloudless-sky, spectral solar irradiance. Our approach was to develop a modifier that relies on commonly acquired meteorological and broadband ...
Bird, Richard E., Riordan, C. J., Myers, D. R.   +2 more
core   +1 more source

Sunlight‐Driven Green Synthesis of Platinum Nanoparticles From Double‐Vacancy Halide Perovskite Precursors for Methanol Reforming

Chemistry – A European Journal, EarlyView.
ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego, Saray Chacón‐Ruiz, Pedro Ruiz‐Campos, Herme G. Baldoví, Pedro Atienzar   +4 more
wiley   +1 more source

Parametric Clear-Sky Solar Irradiance Model with Improved Diffuse Flux Estimation

Energies
Achieving a balance between accuracy and computational efficiency in solar energy flux estimation models remains a key challenge in atmospheric radiative transfer research.
Viviana Sîrbu, Eugenia Paulescu
doaj   +1 more source

The UV-A and visible solar irradiance spectrum: inter-comparison of absolutely calibrated, spectrally medium resolution solar irradiance spectra from balloon- and satellite-borne measurements [PDF]

Atmospheric Chemistry and Physics, 2005
Within the framework of the ENVISAT/-SCIAMACHY satellite validation, solar irradiance spectra are absolutely measured at moderate resolution in the UV/visible spectral range (in the UV from 316.7-418 nm and the visible from 400-652 nm at a full width ...
W. Gurlit, H. Bösch, H. Bösch, H. Bovensmann, J. P. Burrows, A. Butz, C. Camy-Peyret, M. Dorf, K. Gerilowski, A. Lindner, S. Noël, U. Platt, F. Weidner, K. Pfeilsticker   +13 more
doaj  

The Role of Current Mismatch on Reverse‐Bias Stability of Monolithic Perovskite/Silicon Tandem Solar Cells

EcoEnergy, EarlyView.
Reverse‐bias stability in monolithic perovskite/silicon tandem solar cells requires a silicon–current‐limited regime. When the perovskite current exceeds the silicon current, the reverse voltage is mainly borne by the silicon cell, reducing perovskite stress.
Xuechun Zhang, Lujia Xu, Fuzong Xu, Subhashri Mannar, Arsalan Razzaq, Thomas Allen, Stefaan De Wolf   +6 more
wiley   +1 more source