Ultrastable PVB films-protected CsPbBr3/Cs4PbBr6 perovskites with high color purity for nearing Rec. 2020 standard

Synthesis of Cs/Methylammonium/Formamidinium PbBr3 Perovskite Nanocrystals with Green Emissions: Implications for Display Applications

“…2020 standard recommendation highlighting the urgency of ultrapure green (fwhm < 25 nm)-emitting materials for tv display, green LEDs, and related technologies (Table S1). ,− …”

Solvent Evaporation Induced Large-Scale Synthesis of Cs4PbBr6 and CsPbBr3 Microcrystals: Optical Properties and Backlight Application for LEDs

“…Among the many, 0D Cs 4 PbBr 6 with robust green emission has pivoted the research interest into these areas of intervention involving the manufacturing of optoelectronic devices together with LEDs. A good deal of strategies including antisolvent vapor assisted crystallization, , inverse temperature crystallization, anion–cation reactions ligand assisted super saturated recrystallization, inhomogeneous interface reaction routes, reverse microemulsion techniques, and Couette–Taylor flow method , have been explored for the synthesis of Cs 4 PbBr 6 perovskite solids. Bakr et al reported the synthesis of pure phase perovskite solids via low-cost and low-temperature solution processing methods. , But all these methodologies either demand the presence of ligands (dodecylamine, oleylamine, oleic acid, etc.…”

“…Qingyun He et al reported a novel strategy by coating halide perovskites on polyvinyl butyral (PVB) and forming an HPSs@PVB composite membrane which was applied in backlight displays owing to its excellent optical properties, flexibility, high water, and thermal stability. 16 Meanwhile, Naresh et al integrated the CsPbX 3 [X = (Cl 0.5 /Br 0.5 ), Br, and (Br 0.4 /I 0.6 )] PNCs@SiO 2 / polymethyl methacrylate (PMMA) composite film employed as an efficient color converter from ultraviolet (UV) to visible for white LEDs and backlighting. 23 Needless to say, some inexorable menace is prone to occur all through the synthesis routes aforementioned, especially during large-scale production.…”

Stability Enhancement of CsPbBrI2 Glass Powder in PS Film via a Heat-Water Cyclic Treatment for Backlight Display

“…Taking CsPbI 3 as an example, the crystal tolerance factor of CsPbI 3 is located at the structural boundary, which leads to poor phase stability under ambient conditions. , The mixed halide perovskite CsPbBr x I 1‑x is synthesized to improve the crystal tolerance factor, thereby enhancing stabilities. , In addition, it is found that Gd 3+ doping can effectively compensate for the crystal structure defects of CsPbBrI 2 NCs, which not only improves the stabilities of CsPbX 3 NCs but also greatly improves the PLQY (from 15.3 to 37%) . Meanwhile, the protection of the dense glass network structure and polymer film can protect CsPbX 3 NCs from environmental factors efficaciously, and the optical, chemical, and thermal stabilities of CsPbX 3 NCs are advanced. ,− The in situ generation of highly stable CsPbX 3 NCs in borosilicate glass has been reported, which has broad prospects for applications in light emitting diode (LED) devices. − …”