Visualitzant UJI: Investigación per títol

Ara mostrant els elements 12845-12864 d 18326

    • closedAccess   Photoinduced Giant Dielectric Constant in Lead Halide Perovskite Solar Cells 

      Juarez-Perez, Emilio J.; S. Sánchez, Rafael; Badia Bou, Laura; Garcia-Belmonte, Germà; Kang, Yong Soo; Mora-Sero, Ivan; Bisquert, Juan American Chemical Society (2014-06)
      Organic-inorganic lead trihalide perovskites have emerged as an outstanding photovoltaic material that demonstrated a high 17.9% conversion efficiency of sunlight to electricity in a short time. We have found a giant ...

    • closedAccess   Photoluminescence and Photocatalytic properties of Ag3PO4 microcrystals: An Experimental and Theoretical investigation 

      Botelho, Gleice; Andres, Juan; Gracia, Lourdes; Matos, Leandro; Longo, Elson Wiley (2015-11-09)
      The structural, morphological, and optical properties of Ag3PO4 microcrystals were systematically characterized by using a combination of theoretical calculations and experimental techniques. These microcrystals were ...

    • openAccess   Photoluminescence emissions of Ca1−xWO4:xEu3+: Bridging between experiment and DFT calculations 

      Gouveia, Amanda; Assis, Marcelo de; Ribeiro , Lara Kelly; Brandão Lima, Aline Estefany; de Oliveira Gomes, Eduardo; Souza, Daniele; Galvão Gobato, Yara; Rosa, Ieda; Luz Jr, Geraldo; Guillamón, Eva; Longo, Elson; Andres, Juan; San-Miguel, Miguel A. Elsevier (2022-10-15)
      In this work, the impact of the doping process on the photoluminescence emission of CaWO4 as a function of the concentration of Eu3+ cation (0.01 mol%, 0.02 mol%, 0.04 mol%, 0.06 mol%, 0.08 mol%, and 0.10 mol%) is discussed ...

    • closedAccess   Photoluminescence Enhancement of CdSe Quantum Dots: A Case of Organogel–Nanoparticle Symbiosis 

      Wadhavane, Prashant Dinkar; Galian, Raquel E.; Izquierdo Arcusa, María Ángeles; Aguilera Sigalat, Jordi; Galindo, Francisco; Schmidt, Luciana; Burguete, M. Isabel; Pérez Prieto, Julia; Luis, Santiago V. American Chemical Society (2012)
      Highly fluorescent organogels (QD–organogel), prepared by combining a pseudopeptidic macrocycle and different types of CdSe quantum dots (QDs), have been characterized using a battery of optical and microscopic techniques. ...

    • closedAccess   Photoluminescence in quasi-amorphous Pb0.8X0.2Zr0.53Ti0.47O3 (X = Ca, Sr and Ba) powders: An optical and structural study 

      Longo, V. M.; Silva, M. S.; De Figueiredo, A. T.; Franco, R. W. A.; Vila, Carles; Cilense, Mário; Varela, José A.; Longo, Elson; Andres, Juan Elsevier (2009)
      Crystalline and quasi-amorphous PZT and PZT:X (X = Ca, Sr and Ba) powders were obtained by the polymeric precursor method. Electron paramagnetic resonance (EPR) and photoluminescence (PL) data suggest that the presence of ...

    • closedAccess   Photoluminescence of Ca10V6O25:Eu3+: A theoretical and experimental approach 

      Teixeira, Mayara Mondego; Pinatti, Ivo M; Laranjeira, José; da Silva Lopes Fabris, Guilherme; Daldin Teodoro, Marcio; Ieda L. V., Rosa; Simões, Alexandre; Andres, Juan; Sambrano, Julio; Longo, Elson Elsevier (2024-01-30)
      Ca10−xV6O25:xEu (x = 0%, 0.5%, 1%, 2%, 4%, and 8%) samples were synthesized by the microwave-assisted hydrothermal method at low temperature and short time. The corresponding structures were investigated by X-ray diffraction ...

    • closedAccess   Photoluminescence of CdSe/ZnS core–shell quantum dots stabilized in water with a pseudopeptidic gemini surfactant 

      RUBIO-MAGNIETO, JENIFER; Izquierdo Arcusa, María Ángeles; Burguete, M. Isabel; Galindo, Francisco; Luis, Santiago V. Royal Society of Chemistry (2011)
      The use of pseudopeptidic gemini surfactants as stabilizers of hydrophobic quantum dots in water is discussed. Compound 1a acts as an intercalator with hydrophobic ligands of QDs transferring them from toluene to pure water ...

    • openAccess   Photoluminescence of synthetic titanite-group pigments: A rare quenching effect 

      Nasdala, Lutz; Lyubenova, Teodora; Gaft, Michael; Wildner, Manfred; Diegor, Wilfredo; Petautschniga, Christian; Talla, Dominik; Lenz, Christoph Elsevier (2014)
      Chromium-doped titanite and malayaite samples, which were synthesised to evaluate their performance as ceramic pigments, show remarkable photoluminescence behaviour. Emissions of centres related to traces of trivalent ...

    • closedAccess   Photoluminescence properties of cerium oxide nanoparticles as a function of lanthanum content 

      Deus, R.C.; Cortés, J.A.; Ramirez, M.A.; Ponce, Miguel Adolfo; Andres, Juan; Rocha, L.S.R.; Longo, Elson; Simões, Alexandre Elsevier (2015)
      The structural and photoluminescent properties at room temperature of CeO2 and La-doped CeO2 particles were undertaken. The obtained particles were synthesized by a microwave-assisted hydrothermal method (MAH) under different ...

    • openAccess   Photoluminescence Properties of Nanocrystals 

      Cavalcante, Laécio Santos; Sczancoski, Júlio César; Varela, José A.; Longo, Elson; Andres, Juan; Rout, S. K. Hindawi Publishing Corporation (2012)
      Photoluminescence (PL) is an optical phenomenon exhibited by some semiconductor materials when excited by an electromagnetic radiation source. After the excitation and recombination processes, these kinds of materials are ...

    • openAccess   Photoluminescence spectroscopy of trions in quantum dots: A theoretical description 

      Goldoni, Guido; Bertoni, Andrea; Climente, Juan I. American Physical Society (2008)
      We present a full configuration-interaction study of the spontaneous recombination of neutral and singly charged excitons trions in semiconductor quantum dots from weak- to strong-coupling regimes. We find that the ...

    • closedAccess   Photoluminescent behavior of SrZrO<sub>3</sub>/SrTiO<sub>3</sub> multilayer thin films 

      Moreira, Mario Lucio; Andres, Juan; Longo, V. M.; Li, Maximo Siu; Varela, José A.; Longo, Elson Elsevier (2009)
      A detailed investigation was made into the origin of photoluminescence in an alternate multilayer system of SrZrO<sub>3</sub> (SZO) and SrTiO<sub>3</sub> (STO) thin films. XRD and room-temperature PL studies revealed a ...

    • openAccess   Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powdersd-A combined experimental and theoretical study 

      Lovisa, L. X.; Andres, Juan; Gracia, Lourdes; Li, Maximo Siu; Paskocimas, C. A.; Bomio, M. R. D.; Araújo, Vinícius Dantas; Longo, Elson; Motta, F. V. Elsevier (2017-02)
      Rare-earth (RE) element-based materials for optical applications have received increasing attention owing to the emission properties of RE ions, which render these materials suitable for use in color displays, lasers, and ...

    • openAccess   Photolumiscent properties of nanorods and nanoplates Y2O3:Eu3+ 

      De Moura, Ana Paula; De Oliveira, Larissa Helena; Paris, Elaine Cristina; Siu Li, Maximo; Andres, Juan; Arana Varela, José; Longo, Elson; Rosa, Ieda Springer Verlag (2011)
      Nanorods and nanoplates of Y2O3:Eu3+ powders were synthesized through the thermal decomposition of the Y(OH)3 precursors using a microwave-hydrothermal method in a very short reaction time. These powders were analyzed by ...

    • closedAccess   Photomodulation of DNA‐Templated Supramolecular Assemblies 

      RUBIO-MAGNIETO, JENIFER; Phan, Tuan‐Anh; Fossépré, Mathieu; Matot, Valérie; Knoops, Jérémie; Jarrosson, Thibaut; Dumy, Pascal; Serein‐Spirau, Françoise; Niebel, Claude; Ulrich, Sébastien; Surin, Mathieu Wiley (2018-01-12)
      A new type of DNA ligand that contains a phosphate‐binding group and a photoresponsive azobenzene moiety is reported. When the azobenzene is in trans configuration, the ligand binds to the minor groove of a double‐stranded ...

    • openAccess   Photon Counting 3-D Object Recognition Using Digital Holography 

      Latorre Carmona, Pedro; Javidi, Bahram; Pla, Filiberto; Tajahuerce, Enrique Institute of Electrical and Electronics Engineers (IEEE) (2013)
      We present an analysis of the recognition performance of 3-D objects reconstructed from digital holograms recorded under photon counting conditions. The digital holograms are computed by applying four-step phase-shifting ...

    • closedAccess   Photon Up-Conversion with Lanthanide-Doped Oxide Particles for Solar H2 Generation 

      Gonell, Francisco; Haro, Marta; S. Sánchez, Rafael; Negro, Patricia; Mora-Sero, Ivan; Bisquert, Juan; Julian-Lopez, Beatriz; Gimenez, Sixto American Chemical Society (2014-05)
      Up-conversion (UC) of infrared (IR) photons into visible radiation constitutes a promising strategy to enhance the light harvesting efficiency of photovoltaic and photoelectrochemical devices. In the present study, we ...

    • openAccess   Photonic and Nanobiophotonic Properties of Luminescent Lanthanide-Doped Hybrid Organic-Inorganic Materials 

      Planelles Aragó, José; Julian-Lopez, Beatriz; Escribano López, Purificación; Viana, Bruno; Cordoncillo, Eloisa; Sánchez, Clément Royal Society of Chemistry (2008)
      Research into lanthanide-doped organic–inorganic hybrid materials emerged in the 1990s with the development of interesting materials for optics: high efficiency and stable solid-state lasers, new fiber amplifiers and ...

    • openAccess   Photonic Processing of MAPbI3 Films by Flash Annealing and Rapid Growth for High-Performance Perovskite Solar Cells 

      Serafini, Patricio; Boix, Pablo P; Barea, Eva M; Edvinson, Tomas; Sánchez, Sandy; Mora-Sero, Ivan Wiley (2022-10-06)
      Defects in polycrystalline halide perovskite films can cause a decrease of the solar cell photoconversion efficiency and stability. The perovskite film enhanced during crystal growth by controlling the processing method ...

    • closedAccess   Photoreceptor Activity Contributes to Contrasting Responses to Shade in Cardamine and Arabidopsis Seedlings 

      Molina-Contreras, María José; Paulišić, Sandi; Then, Christiane; Moreno-Romero, Jordi; Pastor-Andreu, Pedro; Morelli, Luca; Roig Villanova, Irma; Jenkins, Huw; Hallab, Asis; Gan, Xiangchao; Gomez-Cadenas, Aurelio; Tsiantis, Miltos; Rodríguez-Concepción, Manuel; Martínez-García, Jaime F. American Society of Plant Biologists (2019)
      Plants have evolved two major ways to deal with nearby vegetation or shade: avoidance and tolerance. Moreover, some plants respond to shade in different ways; for example, Arabidopsis (Arabidopsis thaliana) undergoes an ...