X-ray excited optical luminescence at carnaúba, the sirius x-ray nanoprobe beamline
Verônica C. Teixeira, Joelson C. Silva, Francisco C. M. Silva, Rodrigo Szostak, Maria Gabriella D. Guaita, Leonardo M. Kofukuda, Antonio C. Piccino Neto, Anna P. S. Sotero, Itamar T. Neckel, Carlos A. Pérez, Douglas Galante, Hélio C. N. Tolentino
ARTIGO
Inglês
Agradecimentos: The authors acknowledge Brazilian funding agencies: São Paulo State Foundation -FAPESP: 2021/08111-2 (VCT, ITN and DG), 2021/01357-6 (RS), 2023/06605-3 (VCT); MGDG and FCMS thank the Brazilian National Council for Scientific and Technological Development – CNPq for their scholarships...
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Agradecimentos: The authors acknowledge Brazilian funding agencies: São Paulo State Foundation -FAPESP: 2021/08111-2 (VCT, ITN and DG), 2021/01357-6 (RS), 2023/06605-3 (VCT); MGDG and FCMS thank the Brazilian National Council for Scientific and Technological Development – CNPq for their scholarships and VCT also acknowledges CNPq (310890/2021-7). They acknowledge the Carnauba beamline from the Sirius- LNLS/CNPEM, proposal 20210013. They are grateful to Prof. Dr. Danilo Mustafa from the University of São Paulo for the HDL samples, Eng. Igor Torquato from the Quati Group/LNLS for his assistance with the use of CORAL and Dr. Liu Lin from the LNLS Accelerators Division for the valuable discussions about the machine operation modes
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Abstract: This work presents the developments and initial results obtained using X-ray excited optical luminescence (XEOL) at the Carnaúba, the nanoprobe beamline from Sirius, the Brazilian 4th generation synchrotron source. XEOL is a highly important tool to study luminescence mechanisms and...
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Abstract: This work presents the developments and initial results obtained using X-ray excited optical luminescence (XEOL) at the Carnaúba, the nanoprobe beamline from Sirius, the Brazilian 4th generation synchrotron source. XEOL is a highly important tool to study luminescence mechanisms and identify optical channels in various types of materials under X-ray irradiation. Using this capability combined with a nanoprobe, one can probe optical channels, for example, in heterogenous materials, and directly correlate them with chemical composition, oxidizing state of absorbers, structure and/or morphology in simultaneous studies. Carnaúba is composed by two experimental station and at the Tarumã station, the first entering in operation, it has been possible to investigate XEOL in the integrated and emission modes, and 2D images in hyperspectral mapping with submicrometric resolution. Herein, it is showed some examples of studies combining excitation energy, emission wavelength and emission intensity in 3D spectra, 2D imaging, and XEOL emission on the study of very sensitive samples that can be easily damaged by the probe. This work also highlights some of the upcoming developments that include the time-resolved and in situ experiments, this last one using microfluidic cells, and the improvement of the covered emission wavelength up to 1700 nm, which will open new opportunities for studying optical materials
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
310890/2021-7
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2021/08111-2; 2021/01357-6; 2023/06605-3
Aberto
X-ray excited optical luminescence at carnaúba, the sirius x-ray nanoprobe beamline
Verônica C. Teixeira, Joelson C. Silva, Francisco C. M. Silva, Rodrigo Szostak, Maria Gabriella D. Guaita, Leonardo M. Kofukuda, Antonio C. Piccino Neto, Anna P. S. Sotero, Itamar T. Neckel, Carlos A. Pérez, Douglas Galante, Hélio C. N. Tolentino
X-ray excited optical luminescence at carnaúba, the sirius x-ray nanoprobe beamline
Verônica C. Teixeira, Joelson C. Silva, Francisco C. M. Silva, Rodrigo Szostak, Maria Gabriella D. Guaita, Leonardo M. Kofukuda, Antonio C. Piccino Neto, Anna P. S. Sotero, Itamar T. Neckel, Carlos A. Pérez, Douglas Galante, Hélio C. N. Tolentino
Fontes
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Optical materials X v. 20, n. art. 100278, Dec. 2023 |