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Keys for designing hematite/plasmonic metal hybrid nanostructures with enhanced photoactive properties
(American Chemical Society, 2018-03)
Photoactive hybrid nanostructures composed of metal oxides and plasmonic metals are able to perform the conversion of radiant (solar) energy into electrical or chemical energy. However, their use in large-scale practical ...
Análise de estruturas tipo honeycomb submetidas à carga de impacto
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2017-12-13)
There is a growing interest by the industries in structural solutions that combine low mass with high impact-energy absorption. Components that have these characteristics are frequently used in aeronautical and airspace ...
Green-to-red light tuning by up-conversion emission via energy transfer in Er3+-Tm3+-codoped germanium-tellurite glasses
(Elsevier BVAmsterdam, 2014-06)
The luminescence properties through up-conversion emission process of Er3+-Tm3+-codoped germanium- tellurite glasses was carefully investigated by using UV-visible-near-infrared absorption spectroscopy, emission spectroscopy ...
Theoretical Study of the Absorption Spectra of Photosynthetic Pigments
(Sociedade Brasileira de FísicaÁguas de Lindóia, 2013-05-13)
The first stage of the photosynthetic process is the extraordinary efficiency of sunlight absorption in the visible region [1]. This region corresponds to the maximum of the spectral radiance of the solar emission. The ...
Composites of Laminar Nanostructured ZnO and VOx-Nanotubes Hybrid as Visible Light Active Photocatalysts
(2018)
A series of hybrid heterostructured nanocomposites of ZnO with V2O5 nanotubes (VOx-NTs) in different mixing ratios were synthesized, with the aim of reducing the recombination of photoinduced charge carriers and to optimize ...
Modeling and simulation of the influence of fractions of blue and red light on the growth of the microalga Scenedesmus quadricauda
(Elsevier Science Sa, 2018-01)
Lighting conditions of microalgal cultures have great impact on the biomass composition and on the efficiency of energy usage. In this work, the green microalgae Scenedesmus quadricauda was grown in a laboratory scale ...
Fundamental Limits on Wavelength, Efficiency and Yield of the Charge Separation Triad
(Public Library Science, 2012-06-01)
In an attempt to optimize a high yield, high efficiency artificial photosynthetic protein we have discovered unique energy and spatial architecture limits which apply to all light-activated photosynthetic systems. We have ...
Fundamental Limits on Wavelength, Efficiency and Yield of the Charge Separation Triad
(Public Library Science, 2012-06-01)
In an attempt to optimize a high yield, high efficiency artificial photosynthetic protein we have discovered unique energy and spatial architecture limits which apply to all light-activated photosynthetic systems. We have ...
Microbial population inhibition method through spectrophotometry absorption of visible light applied to ecotoxicological analyses
(Macrothink Institute, 2020-03-31)
Ecotoxicology is a science that studies the effects of pollutants and forecast their transformations on the environment. Ecotoxicological studies have been used in soil and water quality assessment, development and ...