Three-dimensional all-inorganic dual halogen emitter Cs₂Cd₂BrCl₅ exhibiting broadband white-light emission

Abstract

Single component white light emitting materials have received increasing attention due to their excellent luminescence properties. Herein, a novel all-inorganic dual halogen emitter Cs2Cd2BrCl5 was successfully synthesized, which features a...

A Zero-Dimensional Organic Lead Bromide of (TPA)2PbBr4 Single Crystal with Bright Blue Emission

“…At 298 K, we can observe two distinct components, 427 nm (green line) and 452 nm (blue line), respectively. In addition, the emission bands at 427 nm and 452 nm can be attributed to the FEs and STEs, respectively [37]. However, PL spectrum at 78 K has a Gaussian shape, which should be assigned to FEs.…”

[C(NH2)3]BiCl2SO4: an excellent birefringent material obtained by multifunctional group synergy

“…The degrees of distortion of the [Bi1Cl 2 O 4 ] 7− and [Bi2Cl 2 O 4 ] 7− polyhedra were calculated, which can be obtained using the following equation: 40–44 where d n represents the individual Bi–O/Cl bond length and d is the average Bi–O/Cl bond length. The Δ d values were calculated to be 1.52 × 10 −3 and 1.63 × 10 −3 , respectively, which are larger than those of compounds (PMA) 3 BiBr 6 and (PMA) 3 SbBr 6 (7.1 × 10 −4 and 2.1 × 10 −4 , respectively).…”

“…The degrees of distortion of the [Bi1Cl 2 O 4 ] 7− and [Bi2Cl 2 O 4 ] 7− polyhedra were calculated, which can be obtained using the following equation: [40][41][42][43][44] Δd ¼ 1 6 . 45 This calculation shows that the polyhedra have a large degree of distortion, which is conducive to the compound having good optical properties.…”

Bright Green Emission from Self-Trapped Excitons Triggered by Sb3+ Doping in Rb4CdCl6

“…28 Recently, Ma's group reported on the orange STEs emission from Cs 7 Cd 3 Br 13 , 29 and Zou's group studied the white emission of Cs 2 Cd 2 BrCl 5 originating from free excitons (FEs) and STEs. 30 However, the above research studies are limited to onedimensional (1D), two-dimensional (2D), and three-dimensional (3D) structures. Luminescence of 0D cadmium halides remains unexplored.…”

“…Although the luminescence investigation of all-inorganic cadmium halides has been expanded to the doping engineering exploration, there seems to be a large gap in the study of luminescence for such materials. , Until in 2018, Luo et al successfully obtained Rb 2 CdCl 2 I 2 with a warm white emission . Recently, Ma’s group reported on the orange STEs emission from Cs 7 Cd 3 Br 13 , and Zou’s group studied the white emission of Cs 2 Cd 2 BrCl 5 originating from free excitons (FEs) and STEs . However, the above research studies are limited to one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) structures.…”