Pr3+ doped LaTiNbO6 as a single phosphor for white LEDs

A new single-host white-light-emitting BaSrMg(PO4)2: Eu2+ phosphor for white-light-emitting diodes

“…Up to now, several white phosphors suitable for NUV-pumped WLEDs have been reported [7][8][9][10][11][12][13][14][15], such as Ba 3 [16]. Most of these white phosphors are silicate or aluminate, which were prepared in high temperature.…”

Spectroscopic properties of Pr3+:Gd3Ga5O12 crystal

“…When the Pr 3+ ions are pumped to the closely grouped 3 P J (J = 0, 1, 2) multiplets, several emissions in red ( 3 P 0 → 3 F 2 ), deep red ( 3 P 0 → 3 F 4 ), orange ( 3 P 0 → 3 H 6 ), green ( 3 P 1 → 3 H 5 ), and blue ( 3 P 0 → 3 H 4 ) spectral regions have been demonstrated in tungstate [6], vanadate phosphors [8], molybdate [3], fluoride crystals [1,10], etc. Also, two dominant transitions from the fluorescent 3 P 0 level of Pr 3+ to the lower 3 H 6 and 3 H 4 states can be mixed to give out white light for application to white LEDs [11]. Presently, the rapid development of blue GaN laser diode operating around 450 nm, which can be used to directly pump the 3 P 0,1,2 emitting levels of the Pr 3+ ions, promotes the investigation of visible lasers of Pr 3+ ion [3,10].…”

Preparation and luminescent characteristics of Sr3RE2(BO3)4:Dy3+ (RE=Y, La, Gd) phosphors for white LED

“…Therefore, in order to solve these problems, it is essential to exploit singlephased full-color-emitting phosphors for UV-pumped white LED [6]. At present, single-phased white light emitting phosphors are receiving a great deal of attention [7][8][9]. Among these phosphors investigated, borates are good candidates due to their low synthetic temperatures, stabilities, and low costs [10].…”