Search Results - "Malta, Oscar"

Polarized Luminescence of Anisotropic LaPO4:Eu Nanocrystal Polymorphs by Chaudan, Elodie, Kim, Jongwook, Tusseau-Nenez, Sandrine, Goldner, Philippe, Malta, Oscar L, Peretti, Jacques, Gacoin, Thierry

“…Lanthanide elements exhibit highly appealing spectroscopic properties that are extensively used for phosphor applications. Their luminescence contains precise…”
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Boosting the sensitivity of Nd(3+)-based luminescent nanothermometers by Balabhadra, Sangeetha, Debasu, Mengistie L, Brites, Carlos D S, Nunes, Luís A O, Malta, Oscar L, Rocha, João, Bettinelli, Marco, Carlos, Luís D

“…Luminescence thermal sensing and deep-tissue imaging using nanomaterials operating within the first biological window (ca. 700-980 nm) are of great interest,…”
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Surface Plasmon–Photon Coupling in Lanthanide-Doped Nanoparticles by Qin, Xian, Carneiro Neto, Albano N, Longo, Ricardo L, Wu, Yiming, Malta, Oscar L, Liu, Xiaogang

“…Lanthanide-doped nanoparticles have great potential for energy conversion applications, as their optical properties can be precisely controlled by varying the…”
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Glowing nanocrystals enable 3D X-ray imaging by Carneiro Neto, Albano N., Malta, Oscar L.

“…Persistently luminescent nanocrystals have been used to make flexible X-ray detectors that produce better images of 3D objects than do the flat-panel detectors…”
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Contribution of Energy Transfer from the Singlet State to the Sensitization of Eu3+ and Tb3+ Luminescence by Sulfonylamidophosphates by Kasprzycka, Ewa, Trush, Victor A., Amirkhanov, Vladimir M., Jerzykiewicz, Lucjan, Malta, Oscar L., Legendziewicz, Janina, Gawryszewska, Paula

“…A series of stable lanthanide complexes Na[Ln(L)4] (Ln=La3+, Eu3+, Gd3+, Tb3+, with L=dimethyl(4‐methylphenylsulfonyl)amidophosphate and…”
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Intramolecular energy transfer and its influence on the overall quantum yields of Eu3+ and Tb3+ chelates with dimethyl(phenylsulfonyl)amidophosphate ligands by Carneiro Neto, Albano N., Nasalska, Justyna, Gawryszewska, Paula, Trush, Viktor A., Sokolnicki, Jerzy, Malta, Oscar L., Legendziewicz, Janina

“…[Display omitted] •The Lewis base co-ligands enhance the efficiency of intramolecular energy transfer.•For Tb chelates, IET occurs mainly from S1 state…”
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Efficient and tuneable photoluminescent boehmite hybrid nanoplates lacking metal activator centres for single-phase white LEDs by Bai, Xue, Caputo, Gianvito, Hao, Zhendong, Freitas, Vânia T., Zhang, Jiahua, Longo, Ricardo L., Malta, Oscar L., Ferreira, Rute A.S., Pinna, Nicola

“…White light-emitting diodes (WLEDs) are candidates to revolutionize the lighting industry towards energy efficient and environmental friendly lighting and…”
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Dynamics of the Energy Transfer Process in Eu(III) Complexes Containing Polydentate Ligands Based on Pyridine, Quinoline, and Isoquinoline as Chromophoric Antennae by Carneiro Neto, Albano N., Carlos, Luís D., Malta, Oscar L., Sanadar, Martina, Melchior, Andrea, Kraka, Elfi, Ruggieri, Silvia, Bettinelli, Marco, Piccinelli, Fabio

“…In this work, we investigated from a theoretical point of view the dynamics of the energy transfer process from the ligand to Eu­(III) ion for 12 isomeric…”
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Spectroscopic aspects for the Yb3+ coordination compound with a large energy gap between the ligand and Yb3+ excited states by Kasprzycka, Ewa, Carneiro Neto, Albano N., Trush, Viktor A., Malta, Oscar L., Jerzykiewicz, Lucjan, Amirkhanov, Vladimir M., Legendziewicz, Janina, Gawryszewska, Paula

“…[Display omitted] •The spectroscopic data are essential for the use of the theoretical model.•The energy gap between the ligand and Yb excited states is…”
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Effects of Dopant Addition on Lattice and Luminescence Intensity Parameters of Eu(III)-Doped Lanthanum Orthovanadate by Shyichuk, Andrii, Moura, Renaldo T, Neto, Albano N. Carneiro, Runowski, Marcin, Zarad, Mohammad S, Szczeszak, Agata, Lis, Stefan, Malta, Oscar L

“…A series of La1–x Eu x VO4 samples with a different Eu3+ content was synthesized via a hydrothermal route. An increase in the dopant content resulted in a…”
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Polarized Luminescence of Anisotropic LaPO 4 :Eu Nanocrystal Polymorphs by Chaudan, Elodie, Kim, Jongwook, Tusseau-Nenez, Sandrine, Goldner, Philippe, Malta, Oscar L, Peretti, Jacques, Gacoin, Thierry

“…Lanthanide elements exhibit highly appealing spectroscopic properties that are extensively used for phosphor applications. Their luminescence contains precise…”
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Unusually Large Ligand Field Splitting in Anionic Europium(III) Complexes Induced by a Small Imidazolic Counterion by Blois, Lucca, Costa, Israel F., Honorato, João, V Sanches de Araújo, Adalberto, Ando, Rômulo A., Carneiro Neto, Albano N., Suta, Markus, Malta, Oscar L., Brito, Hermi F.

“…Luminescent trivalent lanthanide (Ln3+) complexes are compounds of technological interest due to their unique photophysical properties, particularly anionic…”
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SrAl2O4: Eu2+, Dy3+ persistent luminescent materials functionalized with the Eu3+(TTA)-complex by microwave-assisted method by Francisco, Leonardo H.C., Moreira, Renan P., Felinto, Maria C.F.C., Teixeira, Veronica C., Brito, Hermi F., Malta, Oscar L.

“…•Increased UV absorption and energy transfer processes in functionalized phosphors.•Europium complex functionalization supported by SiO2 polymeric…”
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Photoluminescence of single-phased white light emission materials based on simultaneous Tb3+, Eu3+ and Dy3+ doping in CaWO4 matrix by Barbosa, Helliomar P., Silva, Ivan G.N., Felinto, Maria Claudia F.C., Teotonio, Ercules E.S., Malta, Oscar L., Brito, Hermi F.

“…The triply-doped xTb3+/xEu3+/xDy3+ CaWO4 (x: 0.5, 1.0, 2.0, 3.0, 4.0 and 5.0 mol%) nanomaterials were prepared at room temperature by a coprecipitation method…”
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New Luminescent Lanthanide Tetrakis‐Complexes NEt4[LnL4] Based on Dimethyl‐N‐Benzoylamidophosphate by Kariaka, Nataliia S., Trush, Victor A., Dyakonenko, Viktoriya V., Shishkina, Svitlana V., Smola, Sergii S., Rusakova, Nataliia V., Sliva, Tetiana Y., Gawryszewska, Paula, Carneiro Neto, Albano N., Malta, Oscar L., Amirkhanov, Vladimir M.

“…New lanthanide dimethyl‐N‐benzoylamidophosphate (HL) based tetrakis‐complexes NEt4[LnL4] (Ln3+=La, Nd, Sm, Eu, Gd, Tb, Dy) are reported. The complexes are…”
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Energy-transfer from Gd(III) to Tb(III) in (Gd,Yb,Tb)PO4 nanocrystals by Debasu, Mengistie L, Ananias, Duarte, Rocha, João, Malta, Oscar L, Carlos, Luís D

“…The photoluminescence properties of (Gd,Yb,Tb)PO4 nanocrystals synthesized via a hydrothermal route at 150 °C are reported. Energy-transfer from Gd(3+) to…”
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Photo–Click Chemistry to Design Highly Efficient Lanthanide β‑Diketonate Complexes Stable under UV Irradiation by Lima, Patrícia P, Nolasco, Mariela M, Paz, Filipe A. A, Ferreira, Rute A. S, Longo, Ricardo L, Malta, Oscar L, Carlos, Luís D

“…Europium ( t -Eu) and gadolinium ( t -Gd) β-diketonate complexes with photoactive t-bpete ligand, [Ln(btfa)3(t-bpete)(MeOH)] (Ln = Eu, Gd), where btfa– and…”
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Photoluminescent Investigation of the Doping Site of Eu3+-Doped [Zn3(BTC)2∙12H2O] Metal-Organic Framework Prepared by Microwave-Assisted Hydrothermal Synthesis by Cunha, César, Malta, Oscar, Terraschke, Huayna, Brito, Hermi

“…The [Zn3(BTC)2·12H2O] (BTC = 1,3,5-tricarboxylate) metal-organic framework (MOF) was successfully synthesized using a microwave-assisted hydrothermal synthesis…”
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The Role of the Ligand-to-Metal Charge-Transfer State in the Dipivaloylmethanate-Lanthanide Intramolecular Energy Transfer Process by Miranda, Yolanda C., Pereira, Leide L. A. L., Barbosa, José H. P., Brito, Hermi F., Felinto, Maria C. F. C., Malta, Oscar L., Faustino, Wagner M., Teotonio, Ercules E. S.

“…Two new bis(dipivaloylmethanate)nitrato‐bis(triphenylphosphine oxide)lanthanide(III) complexes [Eu(dpm)2(NO3)(tppo)2] (1) and [Tb(dpm)2(NO3)(tppo)2] have been…”
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Shedding Light on Eu(III) β‐Diketonate Compounds with 1,2‐Bis(diphenylphosphino)ethane Oxide Ligand: an Optical Study by Santos, Paulo R. S., Jesus, Ashley A. S. S., Lima, William B., Arruda, Joaldo G., Faustino, Wagner M., Felinto, Maria C. F. C., Sabino, José R., Brito, Hermi F., Costa, Israel F., Moura, Renaldo T., Carneiro Neto, Albano N., Malta, Oscar L., Terraschke, Huayna, Teotonio, Ercules E. S.

“…Abstract A series of novel lanthanide β‐diketonate coordination compounds containing the ancillary ligand bis(diphenylphosphino) oxide (dppeO 2 ) have been…”
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