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PLASMONIC EFICIENCY INTENSIFICATION OF THE UPCONVESION IN NANOCRYSTAIS DOPED WITH RARE EARTHS.

Grant number: 15/23882-4
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2016
Effective date (End): February 28, 2019
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal researcher:Carlos Rettori
Grantee:Eduardo David Martínez
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:12/04870-7 - Studies of novel complex and advanced materials, AP.TEM
Associated scholarship(s):18/12489-8 - Ultra high sensitivity upconversion nanoparticles for optical nanotermometry and thermochromaticity, BE.EP.PD

Abstract

The observed upconversion (UC) phenomena in rare earths doped nanoparticles (NPs) has been recently a subject of intensive studies due to the potential applications in solar energy, lasers, biosensors and bioimagens. However, the optical efficiency of the UC is not enough to guarantee a good performance for most of the technological applications. This have motivated theoretical and experimental studies involving another optical phenomena, named Plasmons Resonance (PR), which allows to increase in at least two order of magnitude the UC efficiency. In this proposal, we shall use metallic Au and Ag NPs in order to increase the intensity of the electric field at the surface of the NPs that in turn would significantly increase the efficiency of the UC phenomenon.

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Scientific publications (9)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MARTINEZ, EDUARDO D.; BRITES, CARLOS D. S.; CARLOS, LUIS D.; GARCIA-FLORES, ALI F.; URBANO, RICARDO R.; RETTORI, CARLOS. Electrochromic Switch Devices Mixing Small- and Large-Sized Upconverting Nanocrystals. ADVANCED FUNCTIONAL MATERIALS, v. 29, n. 8, . (15/21290-2, 11/19924-2, 15/23882-4, 18/12489-8, 12/04870-7, 12/05903-6, 15/21289-4)
MARTINEZ, EDUARDO D.; BRITES, CARLOS D. S.; CARLOS, LUIS D.; URBANO, RICARDO R.; RETTORI, CARLOS. Upconversion Nanocomposite Materials With Designed Thermal Response for Optoelectronic Devices. FRONTIERS IN CHEMISTRY, v. 7, . (15/21290-2, 11/19924-2, 15/23882-4, 12/05903-6, 12/04870-7, 18/12489-8, 15/21289-4)
MARTINEZ, EDUARDO D.; GARCIA FLORES, ALI F.; PASTORIZA, HERNAN; URBANO, RICARDO R.; RETTORI, CARLOS. Electrothermal silver nanowire thin films for In-Situ observation of thermally-driven chemical processes. SENSORS AND ACTUATORS B-CHEMICAL, v. 259, p. 475-483, . (12/05903-6, 11/19924-2, 15/23882-4, 12/04870-7, 15/21289-4, 15/21290-2)
MARTINEZ, EDUARDO D.; BRITES, CARLOS D. S.; URBANO, RICARDO R.; RETTORI, CARLOS; CARLOS, LUIS D.. Hyperspectral imaging thermometry assisted by upconverting nanoparticles: Experimental artifacts and accuracy. PHYSICA B-CONDENSED MATTER, v. 629, . (11/19924-2, 17/10581-1, 12/04870-7, 15/21290-2, 15/23882-4, 12/05903-6, 15/21289-4)
MARTINEZ, EDUARDO D.; URBANE, RICARDO R.; RETTORI, CARLOS. Thermoplasmonic Maskless Lithography on Upconverting Nanocomposites Assisted by Gold Nanostars. ACS APPLIED NANO MATERIALS, v. 2, n. 11, p. 6889-6897, . (15/23882-4, 15/21290-2, 12/05903-6, 12/04870-7, 15/21289-4, 17/10581-1, 11/19924-2)
BRITES, CARLOS D. S.; MARTINEZ, EDUARDO D.; URBANO, RICARDO R.; RETTORI, CARLOS; CARLOS, LUIS D.. Self-Calibrated Double Luminescent Thermometers Through Upconverting Nanoparticles. FRONTIERS IN CHEMISTRY, v. 7, . (15/21290-2, 11/19924-2, 15/23882-4, 18/12489-8, 12/04870-7, 12/05903-6, 15/21289-4)
GARCIA-FLORES, A. F.; MATIAS, J. S.; GARCIA, D. J.; MARTINEZ, E. D.; CORNAGLIA, P. S.; LESSEUX, G. G.; RIBEIRO, R. A.; URBANO, R. R.; RETTORI, C.. Crystal-field effects in Er3+- and Yb3+-doped hexagonal NaYF4 nanoparticles. Physical Review B, v. 96, n. 16, . (12/04870-7, 11/19924-2, 15/23882-4, 12/05903-6)
MARTINEZ, EDUARDO D.; URBANO, RICARDO R.; RETTORI, CARLOS. Thermoplasmonic enhancement of upconversion in small-size doped NaGd(Y)F-4 nanoparticles coupled to gold nanostars. NANOSCALE, v. 10, n. 30, p. 14687-14696, . (15/21290-2, 11/19924-2, 15/23882-4, 12/04870-7, 12/05903-6, 15/21289-4)
MARTINEZ, EDUARDO D.; GARCIA-FLORES, ALI F.; CARNEIRO NETO, ALBANO N.; BRITES, CARLOS D. S.; CARLOS, LUIS D.; URBANO, RICARDO R.; RETTORI, CARLOS. Controlling the thermal switching in upconverting nanoparticles through surface chemistry. NANOSCALE, v. 13, n. 38, . (15/21290-2, 12/04870-7, 12/05903-6, 11/19924-2, 15/21289-4, 17/10581-1, 15/23882-4)

Please report errors in scientific publications list by writing to: cdi@fapesp.br.