Highly emissive Sb³⁺-doped Rb₂InCl₅·H₂O perovskites: cost-effective synthesis, luminescence, and its application

Abstract

Zero-dimensional (0D) lead-free halide perovskites are emerging as a promising light-emitter, which can be applied as light conversion materials for illumination and display. Herein, we prepared a series of Sb3+:Rb2InCl5·H2O...

A Robust Anti-Thermal-Quenching Phosphor Based on Zero-Dimensional Metal Halide Rb3InCl6:xSb3+

“…The different expansion behaviors of the 0D and 3D samples were further verified by temperature-dependent Raman spectra. As shown in Figure d,e, the Raman spectra of Cs 2 AgInCl 6 : x Sb 3+ and Rb 3 InCl 6 : x Sb 3+ evidenced similar profiles, with the two peaks at 175 and 300 cm –1 corresponding to the symmetric vibration stretching of the [InCl 6 ] 3– octahedron . At higher temperatures (425 K), the Raman peaks of the 3D sample shifted to lower frequencies.…”

“…As shown in Figure 3d,e, the Raman spectra of Cs 2 AgInCl 6 :xSb 3+ and Rb 3 InCl 6 :xSb 3+ evidenced similar profiles, with the two peaks at 175 and 300 cm −1 corresponding to the symmetric vibration stretching of the [InCl 6 ] 3− octahedron. 38 At higher temperatures (425 K), the Raman peaks of the 3D sample shifted to lower frequencies. Such change can be ascribed to a volume effect stemming from the thermal expansion of the octahedron.…”