Insights into the structure, photoluminescence and Judd-Ofelt analysis of red emitting SrLaLiTeO6: Eu3+ phosphors

Luminescence Properties of Rare Earth–Doped Cubic Double Perovskite Tungstate Ba2(1−x)(Na,RE)xZnWO6 (RE = Ce3+, Eu3+ and Dy3+) Phosphors

“…The RE 3þ ions interact each other through exchange and electric multipolar interaction within the host lattice, which leads to concentration quenching. [7,8,11] The mechanism of energy transfer could be identified through the calculation of the critical distance (R c ). The exchange interaction is dominant if the separation between RE 3þ ions in the host lattice is equal to or less than 5 Å, whereas for a distance larger than 5 Å the electric multipolar interaction is responsible for concentration quenching of the PL emission.…”

“…[1][2][3][4][5][6][7][8][9] Recently, perovskite materials have gained more attention for their noteworthy application in photovoltaic [6] and perovskite light-emitting diodes (LEDs). [3,4] This family of materials has proven to be the best for doping of transition metal ions [9,10] as well as rare earth ions [7,8,[11][12][13] for the enhancement of physical properties for various applications. Nevertheless, rare earth ions are preferred over transition metal ions as dopants in perovskite host lattices due to the very peculiar spectroscopic characteristics required for developing a good phosphor.…”

“…Perovskites, with their variety of new forms, interesting physical and chemical properties, and wide spectrum of applications, are one of the most extensively studied family of materials. [ 1–9 ] Recently, perovskite materials have gained more attention for their noteworthy application in photovoltaic [ 6 ] and perovskite light‐emitting diodes (LEDs). [ 3,4 ] This family of materials has proven to be the best for doping of transition metal ions [ 9,10 ] as well as rare earth ions [ 7,8,11–13 ] for the enhancement of physical properties for various applications.…”

Deep‐red‐emitting SrLaLiTeO6: Mn4+ double perovskites: Correlation between Mn4+‐O2− bonding and photoluminescence

“…Rare-earth and non-rare-earth-activated double perovskite phosphors are probed to replace conventional red-emitting phosphors with extreme and highly specific synthesis conditions since these phosphors are stable both chemically and thermally, highly efficient, environment friendly, and have the potential to meet the requirements of solid-state lighting devices. [3][4][5][6][7][8] Apart from this, indoor plant growth and vertical farming are becoming more energy efficient with the advent of plant growth LEDs. Environmental hazards along with pests and other diseases cause a shortage of production of enough food materials that could meet the ever-increasing demands of the human population.…”

“…were investigated to establish its comparable performance with that of other double perovskite oxides as potential red phosphors. 7,8,[23][24][25][26][27] Also, far-red-emitting phosphors such as LiLaMgTeO 6 : Mn 4+ , NaMgLaTeO 6 : Mn 4+ , etc. were explored for plant growth LED applications.…”