Optical and magnetic characterization of one-dimensional Cu(ii)-based perovskite: a high UV–Vis–NIR absorber

Abstract

A 1-D Cu(ii)-based perovskite (C5H8N3)[CuCl3], with gap energy “Eg” of 2.21 eV, has been successfully investigated as a good UV–Vis–NIR absorber. The magnetic analysis suggests that this material can be described by the model of S = 1/2 AFM dimers.

Organically tuned white-light emission from two zero-dimensional Cd-based hybrids

“…In addition to their pertinent magnetic, 1-8 catalytic [9][10][11][12] and biological 9,[13][14][15] properties, organic-inorganic molecular hybrid materials (OIMHMs) exhibit excellent performance in solid-state emitter sources 16,17 as well as in photovoltaic solar cells. [18][19][20][21] Due to their wide band gap energy, low dimensional hybrid compounds are effectively used for optoelectronic devices such as light emitting and diode photo-detectors. 16,[22][23][24] In fact, the low dimensionality of the inorganic sub-lattice creates a multi quantum-well electronic structure which leads to the increase of the band gap energy.…”

Uncovering the Role of Electronic Doping in Lead‐free Perovskite (CH3NH3)2CuCl4‐xBrx and Solar Cells Fabrication

“…[26] The crystal structures of (CH3NH3)2CuCl3.7Br0.3 and (CH3NH3)2CuCl3.63Br0.37 is similar to (CH3NH3)2MCl4 compounds (M = Mn, Cd, or Fe). [43] Although in the first scenario, it is necessary to consider the contribution made by the Jahn-Teller distortion (a property of the 3d 9 Cu 2+ ion): Contrasting with the other four shorts Cu-X distances, two of the four Cu-X bonds in equatorial position (displayed inside the inorganic plane) are significantly longer than the other four, which corresponds to the literature reports [44,45] . The X-ray diffraction (XRD) patterns of perovskite single crystals following solution synthesis (Figure S1) suggests the existence of two distinct crystal structures (Table S1).…”

“…The issue associated with Bi-based perovskite is their wide band gaps (Eg ≥ 2.1 eV) that make these materials unsuitable for light harvesting. [28] The development of innovative sustainable technologies based on eco-friendly, cost-effective, and earth-abundant materials naturally drives attention toward the transition metals, such as Fe 2+ , Cu 2+ , Zn 2+ , and Co 2+ as potential substitutes for lead [31][32][33]34] .…”

High concentration of methyl orange elimination by targeted construction of an α-Bi2O3/Ph–CC–Cu Z-scheme

“…It is worth noting that all the hybrids show wide absorbance peaks in the range of 600-1000 nm, which are different from pure α-Bi 2 O 3 and Ph-CC-Cu and attributed to the crystal field transitions (CFT) of Cu(II). 19 These results indicate the existence of Cu(II) in the α-Bi 2 O 3 /Ph-CC-Cu hybrids, which is demonstrated to be crucial for the Z-scheme charge transfer between the two semiconductors in the following studies.…”