Various approaches to synthesize water-stable halide PeNCs

Abstract

The “halide perovskite fever” is on-going in material-based research due to its extraordinary properties like high absorption coefficient, tunable band gap (throughout the visible range), near-unity emission quantum yield, large...

Extending the absorption of Cs2AgBiCl6 double perovskite to the near infra-red region by copper doping

“…These materials show excellent thermal and structural stability under ambient conditions as well as in humid environments as reported for other materials in the previous literature. [62][63][64] Finally, to verify the effect of Cu-doping on the structural and optical properties of Cs 2 AgBiCl 6 we also explored Cu doping by two other solvent-free mechanochemical grinding methods. We observed similar kinds of results, like contraction of the lattice and extension in the absorption window towards higher wavelengths.…”

“…These materials show excellent thermal and structural stability under ambient conditions as well as in humid environments as reported for other materials in the previous literature. 62–64…”

Metal Halide Perovskites: Promising Materials for Light-Emitting Diodes

“…Even worse, a too high temperature can decompose the perovskites, especially for organic and inorganic hybrid perovskites with organic cation at the A site [155][156][157]. The water and oxygen in the ambient may also influence the stability of PeLEDs [158]. The water can migrate inside the perovskite lattice via surface defect sites to form hydrates, and these hydrates enable the formation of deep-level defects and the decomposition of perovskites [51,159,160].…”

Enhancing the Water‐Stability of 1D Hybrid Manganese Halides by a Cationic Engineering Strategy

“…In the past few years, several surface engineering strategies, such as encapsulating the perovskite nanoparticles in the porous domain of a metal-organic framework (MOF), oxide templates, inorganic zeolites and porous organic polymers (POPs) and glass matrices, have been introduced to enhance the water-stability of perovskites. [20,[28][29][30][31][32][33][34][35][36][37][38] This modification approach significantly suppresses the decomposition process by preventing water vapor and enhancing the water-stability of perovskite. However, these kinds of perovskite based composites are still prone to complicated assembly processes, weakened emission efficiency, inescapable Pb 2+ leakage, difficulty of further surface functionalization and so on.…”