Search Results - "Lima, Sergio A.M."

Recent prospects on phosphor-converted LEDs for lighting, displays, phototherapy, and indoor farming by Bispo-Jr, Airton G., Saraiva, Leonardo F., Lima, Sergio A.M., Pires, Ana M., Davolos, Marian R.

“…Phosphor-converted white-light-emitting diodes (PC-WLEDs) are the main devices behind solid-state lighting (SSL) for both indoor and outdoor lighting, or…”
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Eu3+-activated SrY2O4:Ce4+/3+ red-phosphor for WLEDs: Structural and luminescent insights from experimental and theoretical approaches by Saraiva, Leonardo F., Bispo-Jr, Airton G., Lima, Sergio A.M., Pires, Ana M.

“…Herein, single-phase Eu3+-activated SrY2O4:Ce4+/3+ red-emitting phosphor was produced by an adapted Pechini route under softer synthesis conditions (1100 °C in…”
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Small Schiff base molecules derived from salicylaldehyde as colorimetric and fluorescent neutral-to-basic pH sensors by Silva, Renan C., Canisares, Felipe S.M., Mutti, Alessandra M.G., Pires, Ana M., Lima, Sergio A.M.

“…The development of pH sensors is very important to distinguish different pHs in several applications. In this study, we examined the change of the side chain…”
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Energy transfer between terbium and europium ions in barium orthosilicate phosphors obtained from sol-gel route by Bispo-Jr, Airton G., Lima, Sergio A.M., Pires, Ana. M.

“…The present paper reports on the energy transfer mechanism between Eu3+ and Tb3+ in barium orthosilicate obtained from the sol-gel route, when both activators…”
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The influence of the complexing agent on the luminescence of multicolor-emitting Y2O3:Eu3+,Er3+,Yb3+ phosphors obtained by the Pechini's method by Oliveira, Nagyla A., Bispo-Jr, Airton G., Shinohara, Gabriel M.M., Lima, Sergio A.M., Pires, Ana M.

“…In this study, it is reported the enhancement of the downshifting and the upconversion emission of Y2O3:Eu3+,Er3+,Yb3+ phosphor drove by sorbitol instead of…”
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[Eu(tta)3(Phen-derived)] complexes: Theoretical and empirical approaches enlightening their photophysical behavior by Silva, Rodolpho A.N., Menezes, Jean D.C., Marineli, Gyovanna C., Cebim, Marco A., Davolos, Marian R., Lima, Sergio A.M., Pires, Ana M.

“…Motivated by the high demand for efficient luminescent systems, whether new or little explored, a series of complexes based on the Eu3+ ion, coordinated with…”
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Luminescence and cytotoxic study of red emissive europium(III) complex as a cell dye by Canisares, Felipe S.M., Mutti, Alessandra M.G., Cavalcante, Dalita G.S.M., Job, Aldo E., Pires, Ana M., Lima, Sergio A.M.

“…[Display omitted] •Red emission from Eu(III)-complex with high quantum yield in solution.•High sensitization efficiency of the ligand to the europium ion.•The…”
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Eu(II)‐Activated Silicates for UV Light‐Emitting Diodes Tuning into Warm White Light by Bispo-Jr, Airton G., Lima, Sergio A. M., Carlos, Luís D., Pires, Ana M., Ferreira, Rute A. S.

“…White‐light‐emitting diodes (WLEDs) are the main white light source for general lighting due to high‐luminous efficacy (>150 lm W−1), long lifespan (5 × 104…”
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Multicolor-emitting luminescent Y2O3:RE3+@SiO2-[RE3+(β-diketone)3] core@shell hybrids featuring dual RE3+ activator centers by Costa, André L., Bispo-Jr, Airton G., Lima, Sergio A.M., Pires, Ana M.

“…Luminescent inorganic-organic hybrids find several applications such as in multifunctional devices or in bioimaging. In this regard, through a step-by-step…”
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Phosphor-based green-emitting coatings for circadian lighting by Bispo-Jr, Airton G., Lima, Sergio A.M., Carlos, Luís D., Ferreira, Rute A.S., Pires, Ana M.

“…Light-emitting diodes (LEDs) combining UV-emitting LEDs (UV-LED) with multi-coloured phosphors is one of the main strategies in solid-state lighting, opening…”
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Synthesis and characterization of phosphorescent isomeric iridium complexes with a rigid cyclometalating ligand by Wei, Wei, Lima, Sergio A.M., Djurovich, Peter I., Bossi, Alberto, Whited, Matthew T., Thompson, Mark E.

“…The synthesis, structures and photophysical properties of three phosphorescent isomeric heteroleptic iridium complexes (I1, I2 and I3) with a rigid…”
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Silica-based nanohybrids containing europium complexes covalently grafted: structural, luminescent, and cell labeling investigation by Mutti, Alessandra M. G., Canisares, Felipe S. M., Santos, João A. O., Santos, Bruno C., Cavalcante, Dalita G. S. M., Job, Aldo E., Pires, Ana M., Lima, Sergio A. M.

“…Designing luminescent nanohybrids for bioimaging proposes has been explored by different approaches in the literature. In this context, here silica luminescent…”
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Syntheses and characterization of Schiff base ligands and their Ir(III) complexes as coating for phosphor-converted LEDs by Canisares, Felipe S.M., Bispo-Jr, Airton G., Pires, Ana M., Lima, Sergio A.M.

“…•Two Schiff base ligands were used to synthesize new iridium complexes that emit in the red spectral region.•Ir-complexes feature desirable properties to be…”
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AZO transparent electrodes grown in situ during the deposition of zinc acetate dihydrate onto aluminum thin film by spray pyrolysis by Ozório, Maíza S., Nascimento, Mayk R., Vieira, Douglas H., Nogueira, Gabriel L., Martin, Cibely S., Lima, Sergio A. M., Alves, Neri

“…Zinc acetate dihydrate solution was deposited onto glass and a thin layer of aluminum (10 nm), by spray pyrolysis at 450 °C, growing zinc oxide (ZnO) thin…”
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Eu3+‐tetrakis β‐diketonate complexes for solid‐state lighting application by Leite Silva, Camila M.B., Bispo‐Jr, Airton G., Canisares, Felipe S.M., Castilho, Shirley A., Lima, Sergio A.M., Pires, Ana M.

“…Eu3+–β‐diketonate complexes are used, for example, in solid‐state lighting (SSL) or light‐converting molecular devices. However, their low emission quantum…”
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Eu 3+ -tetrakis β-diketonate complexes for solid-state lighting application by Leite Silva, Camila M B, Bispo-Jr, Airton G, Canisares, Felipe S M, Castilho, Shirley A, Lima, Sergio A M, Pires, Ana M

“…Eu -β-diketonate complexes are used, for example, in solid-state lighting (SSL) or light-converting molecular devices. However, their low emission quantum…”
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