Open AccessEnhancement of photoluminescence emission of Gd3+ activated borate phosphors for phototherapy lamps: A review
Author(s) -
M M Lanje,
Mrunal M. Yawalkar,
J S Dahegaonkar,
S.J. Dhoble
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1913/1/012031
Subject(s) - phosphor , photoluminescence , materials science , vitiligo , optoelectronics , photochemistry , chemistry , medicine , dermatology
In this review paper, we discuss about photoluminescence emission of Gd 3+ in various inorganic phosphors. Narrow band UVB (NB-UVB) emission of Gd 3+ in 312-315 nm is well sought after in medical field to treat photo-responsive diseases like atopic dermatitis, vitiligo, psoriasis, etc. However, this 4f-4f, 6 P j → 8 S 7/2 intra-configurational transition of Gd 3+ is weak and hence needs to be sensitized. Suitable sensitizers like Bi 3+ , Pr 3+ are found to enhance the PL emission of Gd 3+ . Such phosphors with sensitized Gd 3+ emission is highly suitable for phototherapy lamps.