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Your search keyword '"da Luz, Leonis L."' showing total 13 results
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13 results on '"da Luz, Leonis L."'

1. Composition, Structural and Optical Properties of Golden Grass

Author

David, Denis Gilbert Francis, Bargiela, Pascal, da Silva, Marcus Vinicius Santos, Godet, Christian, da Silva Santana, Victor Mancir, Magalhães, Erick Rohan Santos Oliveira, da Luz, Leonis L., Júnior, Severino Alves, Chubaci, José Fernando Diniz, Baffa, Oswaldo, and da Silva, Antônio Ferreira

Published
2022
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6. Composition, Structural and Optical Properties of Golden Grass

Author

David, Denis Gilbert Francis, primary, Bargiela, Pascal, additional, da Silva, Marcus Vinicius Santos, additional, Godet, Christian, additional, da Silva Santana, Victor Mancir, additional, Magalhães, Erick Rohan Santos Oliveira, additional, da Luz, Leonis L., additional, Júnior, Severino Alves, additional, Chubaci, José Fernando Diniz, additional, Baffa, Oswaldo, additional, and da Silva, Antônio Ferreira, additional

Published
2021
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8. Urchin-like artificial gallium oxide nanowires grown by a novel MOCVD/CVD-based route for random laser application.

Author

de Melo Jr., Ronaldo P., Oliveira, Nathalia Talita C., Dominguez, Christian Tolentino, Gomes, Anderson S. L., Falcão, Eduardo H. L., Alves Jr., Severino, da Luz, Leonis L., Chassagnon, Remi, de Araújo, Cid B., and Sacilotti, Marco

Subjects
GALLIUM, NANOWIRES, LASERS, CHEMICAL vapor deposition, ORGANOMETALLIC compounds
Abstract

A novel procedure based on a two-step method was developed to obtain β-Ga2O3nanowires by the chemical vapor deposition(CVD) method. The first step consists in the gallium micro-spheres growth inside a metal-organic chemical vapor deposition environment, using an organometallic precursor. Nanoscale spheres covering the microspheres were obtained. The second step involves the CVD oxidization of the gallium micro-spheres, which allow the formation of β-Ga2O3nanowires on the micro-sphere surface, with the final result being a nanostructure mimicking nature's sea urchin morphology. The grown nanomaterial is characterized by several techniques, including X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray, transmission electron microscopy, and photoluminescence. A discussion about the growth mechanism and the optical properties of the β-Ga2O3material is presented considering its unknown true bandgap value (extending from 4.4 to 5.68 eV). As an application, the scattering properties of the nanomaterial are exploited to demonstrate random laser emission (around 570 nm) when it is permeated with a laser dye liquid solution. [ABSTRACT FROM AUTHOR]

Published
2016
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10. Highly-sensitive Eu3+ ratiometric thermometers based on excited state absorption with predictable calibration

Author

Souza, Adelmo S., primary, Nunes, Luiz A. O., additional, Silva, Ivan G. N., additional, Oliveira, Fernando A. M., additional, da Luz, Leonis L., additional, Brito, Hermi F., additional, Felinto, Maria C. F. C., additional, Ferreira, Rute A. S., additional, Júnior, Severino A., additional, Carlos, Luís D., additional, and Malta, Oscar L., additional

Published
2016
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