Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Carlos William A. Paschoal"'
Autor:
Genesis de O. Lima, Thaylan P. Araújo, José Renato de O. Lima, Gilza Maria P. Prazeres, Carlos William A. Paschoal, Elson Longo, Auro A. Tanaka, Adeilton P. Maciel, Diego A.B. Barbosa, Marcio Aurélio P. Almeida
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 60, Iss 1, Pp 2-12 (2021)
Using a microwave-assisted hydrothermal method, we synthesized BiOBr powders, with and without, glycine or phenylalanine as templates. The samples were characterized by X-ray Diffraction, UV–Vis Diffuse Reflectance Spectroscopy, and Field Emission
Externí odkaz:
https://doaj.org/article/0a95364c199f489db91463abc9876bd0
Autor:
Nailson Vasconcelos, Bruno S. Araújo, Dieric S. Abreu, Mayra A. P. Gómez, Alejandro P. Ayala, Carlos William A. Paschoal
Publikováno v:
Materials Advances. 3:8597-8607
We found the octahedral distortion in this compound drives its optical properties due to the STE formation. Also, a strong exciton–phonon coupling is observed and ascribed as the mechanism of temperature-induced PL broadening.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7173e773e1e6fbaad31831bbe818b1d
https://doi.org/10.1039/d2ma00752e
https://doi.org/10.1039/d2ma00752e
Autor:
Roberto L. Moreira, Mailadil T. Sebastian, and Carlos William A. Paschoal, Anderson Dias, L. Abdul Khalam
Publikováno v:
Chemistry of Materials. 18:214-220
Raman spectroscopy was employed to evaluate the crystal structure and phonon modes of chemically substituted Ba(RE1/2Nb1/2)O3 microwave ceramics (RE = La, Nd, Sm, Gd, Tb, and Y). It was verified that these materials could be divided into tetragonal (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::745580b9ae2abecdf656aa3974cbb4ef
https://doi.org/10.1021/cm051982f
https://doi.org/10.1021/cm051982f