Energy transfer from self-trapped excitons to rare earth ions in Cs₂ZrCl₆perovskite variants

Abstract

Rare earth ions doping in metal halides provides a promising way for imparting and tailoring the optical and optoelectronic performances towards versatile optical applications. In this work, the relationships among...

Zero-dimensional indium hybrids and modulated photoluminescence by Sb doping

“…Such a unique band gap structure generated a larger E STEs at high temperature for observing blue shift emission. 34,35…”

“…Such a unique band gap structure generated a larger E STEs at high temperature for observing blue shift emission. 34,35 Recently, dopants in metal halides provide a promising way for controlling the photoluminescence performances. Among the active ion doping procedures, Sb 3+ ions with the electronic structure similar to In 3+ ions have been regarded as effective optically active luminescent ions in metal halides.…”

“…It is worth noting that there is no energy transfer process in (TEA) 2 InCl 5 : Sb 3+ , but a mixture of luminescence from [SbCl 5 ] 2À square pyramids and [InCl 5 ] 2À square pyramids as well as (TEA) + . The reasons are explained as follows: (1) the PLE spectra of Sb 3+ monitored at 500 nm and 660 nm are quite different from [InCl 5 ] 2À square pyramids and (TEA) + , which is the most direct and fundamental evidence to prove that there is no energy transfer; 35 (2) there is little spectral overlap between the (TEA) 2 InCl 5 PL and Sb 3+ PLE spectrum.…”

Achieving Highly Efficient Orange Emission in Tin (IV)‐Based Metal Halides with Outstanding Anti‐Water Stability Through Antimony Doping and Reasonable Structural Modulation

“…Compared to pristine (TBP) 2 SnCl 6 , the absorption spectrum of Sb 3+ ‐doped (TBP) 2 SnCl 6 exhibits a significant red shift with increasing Sb 3+ doping concentration, indicating that the dopant significantly contributes to the band edge structure of the host matrix ( Figure ), which is consistent with the PLE results. With increasing Sb 3+ content, the absorption coefficient at 310–420 nm was significantly enhanced, which should be assigned to Sb 3+ in the 4d 10 5s 2 5p° configuration, which has a stronger absorption transition than that of Sn 4+ in the 4d 10 5s 0 5p° configuration, [ 14 ] thus boosting the efficient orange emission observed in Sb 3+ ‐doped (TBP) 2 SnCl 6 . Absorption bands at 220–310 and 310–420 nm are clearly observed, which can be attributed to the 1 S 0 – 1 P 1 and 1 S 0 – 3 P 1 transitions of Sb 3+ , respectively.…”

Tunable luminescence in Eu3+/Sm3+ single-doped LuNbO4 for optical thermometry and anti-counterfeiting

“…10,11 Therefore, developing RE ion single-doped multicolor materials for anti-counterfeiting and temperature sensors is necessary. 12 When some RE ions are introduced into self-activated phosphors, the energy from the host can be effectively transferred to the activators under certain excitation, resulting in a tunable multicolor emission. 13 Self-activated phosphors show some advantages, such as a broad emission band, minor reabsorption overlapping, a high excitation threshold, and a low sintering temperature.…”