TY - JOUR
T1 - Vacuum referred binding energy of 3d transition metal ions for persistent and photostimulated luminescence phosphors of cerium-doped garnets
AU - Ueda, Jumpei
AU - Hashimoto, Atsunori
AU - Takemura, Shota
AU - Ogasawara, Kazuyoshi
AU - Dorenbos, Pieter
AU - Tanabe, Setsuhisa
N1 - Accepted Author Manuscript
PY - 2017
Y1 - 2017
N2 - The Y3Al5−xGaxO12(YAGG):Ce3+-Cr3+ persistent phosphor is one of the materials in which Cr3+ ions act as electron traps. The possibility of electron traps by other transition metal ions (TM3+, TM = Sc, Ti, V, Cr, Fe) was investigated and those electron trap depth was compared with each other. In the thermoluminescence (TL) glow curves, the YAGG:Ce3+ samples co-doped with different TM3+ ions show different TL glow peak temperatures (i.e. different electron trap depth). The estimated vacuum referred binding energy of TM2+ from the trap depth shows a zig-zag curve, which is found to be originated from the different 3d electron energies affected by a number of d electron, nuclear charge and crystal field splitting. Utilizing the obtained TM2+ zig-zag curve, a new persistent phosphor of Y3Al2Ga3O12:Ce3+-Sc3+ and a photostimulated phosphor of Y3Al2Ga3O12:Ce3+-V3+ were successfully developed.
AB - The Y3Al5−xGaxO12(YAGG):Ce3+-Cr3+ persistent phosphor is one of the materials in which Cr3+ ions act as electron traps. The possibility of electron traps by other transition metal ions (TM3+, TM = Sc, Ti, V, Cr, Fe) was investigated and those electron trap depth was compared with each other. In the thermoluminescence (TL) glow curves, the YAGG:Ce3+ samples co-doped with different TM3+ ions show different TL glow peak temperatures (i.e. different electron trap depth). The estimated vacuum referred binding energy of TM2+ from the trap depth shows a zig-zag curve, which is found to be originated from the different 3d electron energies affected by a number of d electron, nuclear charge and crystal field splitting. Utilizing the obtained TM2+ zig-zag curve, a new persistent phosphor of Y3Al2Ga3O12:Ce3+-Sc3+ and a photostimulated phosphor of Y3Al2Ga3O12:Ce3+-V3+ were successfully developed.
UR - http://www.scopus.com/inward/record.url?scp=85022226590&partnerID=8YFLogxK
UR - http://resolver.tudelft.nl/uuid:90940924-00ae-4229-9047-b46fe12bda3c
U2 - 10.1016/j.jlumin.2017.07.006
DO - 10.1016/j.jlumin.2017.07.006
M3 - Article
AN - SCOPUS:85022226590
SN - 0022-2313
VL - 192
SP - 371
EP - 375
JO - Journal of Luminescence
JF - Journal of Luminescence
ER -