Tumram P.V.1, Kautkar P.R.2, Wankhede S.P.3, Belsare P.D.4, Moharil S.V.2
1Department of Physics, Amolakchand Mahavidyalaya, Yavatmal,, M.S., India
2Department of Physics, R.T.M. Nagpur University, Nagpur,, M.S., India
3Department of Physics, K.D.K. College of Engineering, Nagpur,, M.S., India
4Shri Ramdeobaba College of Engineering and Management, Nagpur,, M.S., India
Email: priyatumram23@gmail.com
Поступила в редакцию: 30 декабря 2020 г.
Выставление онлайн: 11 апреля 2021 г.
Luminescence of Cr3+ is important in context of solid state lasers as well as studies on precious stones. Several such luminescent materials are based on aluminates. We have exploited the fact that aluminate powders can be easily prepared by combustion synthesis for exploring new phosphors based on aluminates. Results of this investigation are reported here. Luminescence of Cr3+ in hitherto unexplored Li2Al4O7, NaAl7O11, Na2MgAl10O17, KAl5O8 is reported for the first time. All these phosphors exhibit characteristic line emission around 700 nm and broad-band excitation in nUV-visible region. Keywords: photoluminescence, phosphor, aluminate, NIR, Cr3+.
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