A flexible ligand and halogen engineering enable one phosphor-based full-color persistent luminescence in hybrid perovskitoids

Abstract

Color-tunable room temperature phosphorescence (RTP) materials have raised wide interest due to their potential application in the fields of encryption and anti-counterfeiting. Herein, a series of CdX2-organic hybrid perovskitoids, (H-apim)CdX3...

Excitation Wavelength-Dependent Photochemistry

“…An excitation wavelength-dependent room-temperature phosphorescence was also reported in liquid and solid samples [50,51]. For instance, the color tunability of a series of phosphinoamines (phenylbenzothiazoles bearing phosphine groups [50]), in both solid state and solution, was due to a dual-band emission of hundreds of microseconds lifespan whose intensity depends on the excitation wavelength of ultraviolet light.…”

“…In general, quantum yields are determined for thermally stable reactants but not for every photochemical step of the reaction mechanism leading to a photostationary state (e.g., fulgides (51) to ( 53)). In this context, it is useful to mention an unprecedented set of kinetic formulae that were developed for the concentrations of a reactant and its four photoproducts, sequentially generated in a multi-consecutive photoreaction [145].…”

Employing racemization strategies to simultaneously enhance the quantum yield, lifetime, and water stability of room-temperature phosphorescent materials

“…Recent interest in long-lived RTP has revitalized research into organic luminophores, 1–3 leading to innovative applications in next-generation optoelectronics, 4 anti-counterfeiting, 5,6 sensors, 7 and information storage. 8,9 These advancements capitalize on the extended lifespan and spin multiplicity of triplet excitons in organic molecules.…”

Construction and characterization of an inorganic–organic hybrid copper(i) iodide coordination polymer with semiconducting luminescence

“…Inorganic–organic hybrid semiconductors are a class of crystalline solid-state materials constructed using organic components and inorganic modules. 1–3 These materials possess intrinsic structural and functional features and in most cases, exhibit some unique and advantageous properties, and are widely used in photocatalysis, 4–6 X-ray imaging, 7,8 optoelectronic devices, 9–13 information storage, and anti-counterfeiting, 14–17 as well as in solid-state lighting (SSL) technologies. 18–20 Among these, organic and inorganic hybrid copper( i ) iodide compounds are promising candidates for use as semiconductor optical materials because of their diverse structural motif of the Cu x I y cluster for their highly emissive nature and strong luminescence, 21,22 and adjustable band gap energies obtained by incorporating suitable organic ligands with the appropriate lowest unoccupied molecular orbital (LUMO) energies.…”