biostudies-literatureUnknown8(21)Lee SPNovel Eu²⁺-activated BaGa₂SiS₆ and Ba₂Ga₈SiS₁₆ thiogallate phosphors were prepared by solid-state reaction route. The BaGa₂SiS₆:Eu²⁺ phosphor generated a green emission upon excitation at 405 nm, whereas the Ba₂Ga₈SiS₁₆:<i>x</i>Eu²⁺ phosphor could be tuned from cyan to green range with increasing Eu²⁺ concentration upon excitation at 365 nm. Additionally, the thermal luminescence properties of the thiogallate phosphors were investigated in the temperature range of 25 to 250 °C. A warm-white LED is fabricated using the combination of a 405 nm blue InGaN-based LED chip with the green-emitting BaGa₂SiS₆:0.01Eu²⁺ phosphor, and red-emitting Sr₂Si₅N₈:Eu²⁺ commercial phosphor with the CRI value of ∼88 and the CCT of 4213 K.RSC advances11725-11730https://www.ebi.ac.uk/biostudies/studies/S-EPMC9079137biostudies-literatureNovel Eu²⁺-activated thiogallate phosphors for white LED applications: structural and spectroscopic analysis.PMC9079137Chen TMDutta SLee SPChan TSfalseNovel Eu²⁺-activated thiogallate phosphors for white LED applications: structural and spectroscopic analysis.Novel Eu²⁺-activated BaGa₂SiS₆ and Ba₂Ga₈SiS₁₆ thiogallate phosphors were prepared by solid-state reaction route. The BaGa₂SiS₆:Eu²⁺ phosphor generated a green emission upon excitation at 405 nm, whereas the Ba₂Ga₈SiS₁₆:<i>x</i>Eu²⁺ phosphor could be tuned from cyan to green range with increasing Eu²⁺ concentration upon excitation at 365 nm. Additionally, the thermal luminescence properties of the thiogallate phosphors were investigated in the temperature range of 25 to 250 °C. A warm-white LED is fabricated using the combination of a 405 nm blue InGaN-based LED chip with the green-emitting BaGa₂SiS₆:0.01Eu²⁺ phosphor, and red-emitting Sr₂Si₅N₈:Eu²⁺ commercial phosphor with the CRI value of ∼88 and the CCT of 4213 K.2018-01-01T00:00:00Z2018 Mar2025-04-06T19:47:07.113Z2025-04-06T19:47:07.113ZS-EPMC90791373554279410.1039/c8ra01113c