Search Results - "Adolfo Speghini"

Fabrication of Europium-Doped CaF2 Films via Sol-Gel Synthesis as Down-Shifting Layers for Solar Cell Applications by Pellegrino, Anna Lucia, Milan, Emil, Speghini, Adolfo, Malandrino, Graziella

“…In the present work, an in-depth study on the sol-gel process for the fabrication of Eu-doped CaF2 materials in the form of thin films has been addressed for…”
Get full text

NIR-to-NIR Two-Photon Excited CaF2:Tm3+,Yb3+ Nanoparticles: Multifunctional Nanoprobes for Highly Penetrating Fluorescence Bio-Imaging by Dong, Ning-Ning, Pedroni, Marco, Piccinelli, Fabio, Conti, Giamaica, Sbarbati, Andrea, Ramírez-Hernández, Juan Enrique, Maestro, Laura Martínez, Iglesias-de la Cruz, Maria Carmen, Sanz-Rodriguez, Francisco, Juarranz, Angeles, Chen, Feng, Vetrone, Fiorenzo, Capobianco, John A, Solé, José García, Bettinelli, Marco, Jaque, Daniel, Speghini, Adolfo

“…In this study, we report on the remarkable two-photon excited fluorescence efficiency in the “biological window” of CaF2:Tm3+,Yb3+ nanoparticles. On the basis…”
Get full text

Physical-Chemical Properties of Biogenic Selenium Nanostructures Produced by Stenotrophomonas maltophilia SeITE02 and Ochrobactrum sp. MPV1 by Piacenza, Elena, Presentato, Alessandro, Ambrosi, Emmanuele, Speghini, Adolfo, Turner, Raymond J, Vallini, Giovanni, Lampis, Silvia

“…SeITE02 and sp. MPV1 were isolated from the rhizosphere soil of the selenium-hyperaccumulator legume and waste material from a dumping site for roasted…”
Get full text

Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films by Pennisi, Fabiana M., Pellegrino, Anna L., Licciardello, Nadia, Mezzalira, Claudia, Sgarzi, Massimo, Speghini, Adolfo, Malandrino, Graziella, Cuniberti, Gianaurelio

“…The photocatalytic approach is known to be one of the most promising advanced oxidation processes for the tertiary treatment of polluted water. In this paper,…”
Get full text

Bright White Upconversion Emission from Tm3+/Yb3+/Er3+-Doped Lu3Ga5O12 Nanocrystals by Mahalingam, Venkataramanan, Mangiarini, Francesca, Vetrone, Fiorenzo, Venkatramu, Vemula, Bettinelli, Marco, Speghini, Adolfo, Capobianco, John A

“…We report the synthesis of Tm3+/Yb3+/Er3+-doped Lu3Ga5O12 nanocrystals prepared by a simple sol−gel method exhibiting bright white light following excitation…”
Get full text

Concentration-Dependent Near-Infrared to Visible Upconversion in Nanocrystalline and Bulk Y2O3:Er3 by Vetrone, Fiorenzo, Boyer, John-Christopher, Capobianco, John A, Speghini, Adolfo, Bettinelli, Marco

“…We investigated the upconversion properties of nanocrystalline and bulk Y2O3:Er3+ as a function of the erbium concentration (1, 2, 5, 10, 25, and 35 mol %)…”
Get full text

Effect of Yb3+ Codoping on the Upconversion Emission in Nanocrystalline Y2O3:Er3 by Vetrone, Fiorenzo, Boyer, J. Christopher, Capobianco, John A, Speghini, Adolfo, Bettinelli, Marco

“…The Stokes emission of nanocrystalline and bulk Y2O3:Er3+, Yb3+ following 488 nm were reported. Two nanocrystalline samples were studied, one produced via…”
Get full text

A Spectroscopic Analysis of Blue and Ultraviolet Upconverted Emissions from Gd3Ga5O12:Tm3+, Yb3+ Nanocrystals by Pandozzi, Fabiano, Vetrone, Fiorenzo, Boyer, John-Christopher, Naccache, Rafik, Capobianco, John A, Speghini, Adolfo, Bettinelli, Marco

“…The spectroscopic behavior of gadolinium gallium garnet (Gd3Ga5O12, GGG) nanocrystals codoped with 1% each of Tm3+ and Yb3+ prepared via a solution combustion…”
Get full text

Surface imprinted beads for the recognition of human serum albumin by Bonini, Francesca, Piletsky, Sergey, Turner, Anthony P.F., Speghini, Adolfo, Bossi, Alessandra

“…The synthesis of poly-aminophenylboronic acid (ABPA) imprinted beads for the recognition of the protein human serum albumin (HSA) is reported. In order to…”
Get full text

ZnSnO3 or Zn2SnO4/SnO2 Hierarchical Material? Insight into the Formation of ZnSn(OH)6 Derived Oxides by Redolfi-Bristol, Davide, Branzi, Lorenzo, Back, Michele, Riello, Pietro, Speghini, Adolfo, Pinna, Nicola, Benedetti, Alvise

“…Piezoelectric materials are a class of compounds that is gaining increasing interest in various applications such as energy harvesting. During the last decade,…”
Get full text

Structural study of Ca2Gd2Ge2O9 and optical spectroscopy of the Eu3+ dopant ion by Piccinelli, Fabio, Pedroni, Marco, Cagliero, Stefano, Speghini, Adolfo, Bettinelli, Marco

“…The new rare earth-based germanate compound Ca2Gd2Ge2O9 (orthorhombic (Pnma) crystal structure), has been characterized and investigated for the first time,…”
Get full text

Local structure of the Ce3+ ion in the yellow emitting phosphor YAG:Ce by Ghigna, Paolo, Pin, Sonia, Ronda, Cees, Speghini, Adolfo, Piccinelli, Fabio, Bettinelli, Marco

Get full text

Comparative Spectroscopic Investigation of Tm3+:Tellurite Glasses for 2-μm Lasing Applications by Cankaya, Huseyin, Gorgulu, Adil, Kurt, Adnan, Speghini, Adolfo, Bettinelli, Marco, Sennaroglu, Alphan

“…[...]strong water absorption occurs at these wavelengths, making thulium-doped gain media very attractive in the development of lasers for biomedical…”
Get full text

980 nm excited upconversion in an Er-doped ZnO–TeO2 glass by Vetrone, Fiorenzo, Boyer, John-Christopher, Capobianco, John A., Speghini, Adolfo, Bettinelli, Marco

“…In this letter, we investigate the upconversion properties of 19ZnO–80TeO2–1Er2O3 glass after excitation into the I11/24 level using 980 nm radiation. At an…”
Get full text

A Multifunctional Nanocomposite Hydrogel for Endoscopic Tracking and Manipulation by Augurio, Adriana, Cortelletti, Paolo, Tognato, Riccardo, Rios, Anne, Levato, Riccardo, Malda, Jos, Alini, Mauro, Eglin, David, Giancane, Gabriele, Speghini, Adolfo, Serra, Tiziano

“…Herein, the fabrication of multi‐responsive and hierarchically organized nanomaterial using core‐shell SrF2 upconverting nanoparticles, doped with Yb3+, Tm3+,…”
Get full text

Visible luminescence of lanthanide ions in Ca3Sc2Si3O12 and Ca3Y2Si3O12 by Piccinelli, Fabio, Speghini, Adolfo, Mariotto, Gino, Bovo, Laura, Bettinelli, Marco

“…The crystalline materials Ca3Sc2Si3O12 and Ca3Y2Si3O12 Were characterized by different crystal structures, as the fonmer is a cubic garnet, while the latter is…”
Get full text

NIR to Visible Upconversion in Nanocrystalline and Bulk Lu2O3:Er3 by Vetrone, Fiorenzo, Boyer, J. Christopher, Capobianco, John A, Speghini, Adolfo, Bettinelli, Marco

“…In this paper we investigate the upconversion luminescence of bulk and nanocrystalline Lu1.98Er0.02O3 following excitation into the 4I11/2 level using 980 nm…”
Get full text

New chiral pyridine-based Eu(III) complexes: Study of the relationship between the nature of the ligands and the 5D0 luminescence spectra by Piccinelli, Fabio, Speghini, Adolfo, Monari, Magda, Bettinelli, Marco

“…The relationship between the geometry of the first coordination sphere around Eu3+ ion and its luminescence properties was presented for a new family of chiral…”
Get full text

Stability of Luminescent Trivalent Cerium in Silica Host Glasses Modified by Boron and Phosphorus by Canevali, Carmen, Mattoni, Mariachiara, Morazzoni, Franca, Scotti, Roberto, Casu, Mariano, Musinu, Anna, Krsmanovic, Radenka, Polizzi, Stefano, Speghini, Adolfo, Bettinelli, Marco

“…Ce-doped borosilicate (BSG), phosphosilicate (PSG), and borophosphosilicate (BPSG) glasses (B:P:Si molar ratios 8:0:92, 0:8:92, and 8:8:84; Ce:Si molar ratio 1…”
Get full text

Fabrication of low loss channel waveguide in tungsten-tellurite glass by 11 MeV carbon ion microbeam for telecom C band by Bányász, István, Szilágyi, Edit, Rajta, Istvan, Nagy, Gyula U.L., Pelli, Stefano, Nunzi Conti, Gualtiero, Berneschi, Simone, Havránek, Vladimir, Vosecek, Vaclav, Nagy, Norbert, Szabó, Zoltan, Veres, Miklos, Speghini, Adolfo

“…Channel waveguides were directly written in Er: TeO2W2O3 glass using 11 MeV C4+ ion microbeam with fluences in the range of 1·1014–5·1016 ion/cm2. The channel…”
Get full text