Luminescence and electronic properties of Ba₂MgSi₂O₇:Eu²⁺: a combined experimental and hybrid density functional theory study

Abstract

Luminescence and electronic properties of Ba2MgSi2O7:Eu2+ were investigated under optical and low-voltage cathode ray excitations and by hybrid DFT calculations.

Strong green fluorescent hydrogels with Ba2MgSi2O7:Eu2+ phosphor embedded in cellulose

“…All the decay curves could be fitted using a single exponential function, the decay times of GC‐2, −4 and −6 were 746.8, 751.1 and 746.1 ns, respectively. It is reported that the decay lifetime of BMSO:Eu 2 + is ~780 ns at room temperature; therefore, the lifetimes of the samples were not obviously altered. In addition, the same decay behavior was observed for all the samples, demonstrating that erosion of the BMSO:Eu 2 + phosphors by cellulose hydrogels was negligible.…”

“…The monoclinic compound Ba 2 MgSi 2 O 7 :Eu 2 + (BMSO:Eu 2 + ) is of particular importance in view of its photoluminescence (PL) properties under UV excitation. It exhibits an intense luminescence band at around 500 nm, with weak thermal quenching above room temperature . In this work, phosphor‐in‐cellulose (PiC) hybrid hydrogels were prepared by embedding Ba 2 MgSi 2 O 7 :Eu 2 + green phosphor into cellulose in NaOH/urea aqueous solution.…”

Structure and luminescence properties of multicolor phosphor Ba2La3(GeO4)3F:Tb3+,Eu3+

“…Therefore, according to the theory of isomorphism, it could be inferred that the doping which was caused by Tb 3+ and Eu 3+ did not cause the structural change. [22][23][24][25] To further understand the crystallographic information of the synthesized samples, powder diffraction data were tted by the Rietveld method and the results are presented in Fig. 2, Tables 1 and 2.…”

Toward temperature‐dependent Bi3+‐related tunable emission in the YVO4:Bi3+ phosphor

“…Because of the vital role of phosphor in the pc‐wLEDs technology, a lot of UV‐ and blue‐converted phosphors that base on rare‐earth (RE; eg, Eu 2+ , Tb 3+ , Sm 3+ , Eu 3+ , Ce 3+ , Pr 3+ , etc) and non‐RE (eg, Bi 2+ , Mn 2+ , Mn 4+ , Bi 3+ , Cr 3+ , etc) ions doping are developed over the past years. Among these phosphors, RE‐doped phosphors exhibit a lot of sticky problems, for example, the limited absorption ability in UV/blue region (<10 nm; eg, Tb 3+ , Eu 3+ , Sm 3+ , Pr 3+ , etc) and the light reabsorption due to the broad excitation bands in the visible spectral region (eg, Eu 2+ , Ce 3+ , Dy 3+ , etc).…”