Structural and optical properties of chromium doped zinc gallate long persistent phosphor prepared by surfactant assisted hydrothermal method

Autor:	Anil Kumar Choudhary, Deepak K. S. Ambast, Amba Mondal, Puja Kumari
Rok vydání:	2021
Předmět:	History Zinc gallate Chromium Materials science chemistry Pulmonary surfactant Doping chemistry.chemical_element Phosphor Hydrothermal circulation Computer Science Applications Education Nuclear chemistry
Zdroj:	Journal of Physics: Conference Series. 1913:012039
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/1913/1/012039
Popis:	Herein, CTAB surfactant aided hydrothermal reaction was carried for preparing Cr3+ doped ZnGa2O4. Urea was used as fuel to continue the reaction. By fixing Cr3+ ions conc. to 0.5 mol%, the molar ratio of CTAB was varied. We used XRD, TEM, FTIR, PL, UV-VIS spectroscopy, decay kinetics, and afterglow decay experiments to characterize the samples. XRD data suggested a cubic phase matching with JCPDS card no. 00-038-1240. TEM images confirmed the formation of nanoparticles within the range 20-80 nm. The estimated band gap was around 4.8 eV. Excited by 227 nm UV lights elaborated a wide emission band extended from 600 to 800 nm and peaking at 696 nm. The afterglow decay curve showed a long persistent signal up to 1 hour after ceasing offthe excitation source.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9749d2f182e5aa954b80785b4f4c1c30 https://doi.org/10.1088/1742-6596/1913/1/012039 Zobrazit plný text záznamu