Research Article
Effect of Annealing on the Photoluminescence Intensity of Gehlenite:Eu Doped Phosphor Prepared in Different Gas Atmospheres
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@INPROCEEDINGS{10.1007/978-3-030-93712-6_26, author={Fetene Fufa Bakare and Abadi Hadush Tesfay and Shao-Ju Shih}, title={Effect of Annealing on the Photoluminescence Intensity of Gehlenite:Eu Doped Phosphor Prepared in Different Gas Atmospheres}, proceedings={Advances of Science and Technology. 9th EAI International Conference, ICAST 2021, Hybrid Event, Bahir Dar, Ethiopia, August 27--29, 2021, Proceedings, Part II}, proceedings_a={ICAST PART 2}, year={2022}, month={1}, keywords={Gehlenite Photoluminescence Air N2 and N2/H2 Eu2+/Eu3+ Spray pyrolysis}, doi={10.1007/978-3-030-93712-6_26} }- Fetene Fufa Bakare
Abadi Hadush Tesfay
Shao-Ju Shih
Year: 2022
Effect of Annealing on the Photoluminescence Intensity of Gehlenite:Eu Doped Phosphor Prepared in Different Gas Atmospheres
ICAST PART 2
Springer
DOI: 10.1007/978-3-030-93712-6_26
Abstract
Europium doped gehlenite phosphor glassy powders were successfully prepared by spray pyrolysis followed by annealing under air, N2and N2/H2treated gases. In this paper, it is of great attention and importance to find that the reductions of Eu3+to Eu2+ions can be realized. To identify the oxidations of europium ions, the X ray photo spectroscopy (XPS) was used. The photoluminescence (PL) properties intensively studied under different excitation in which the result shows that the europium doped phosphor gehlenite glassy powders emit a strong red light in air and N2treated gases; while under N2/H2treated gas, blue light was observed.
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