Hemmati, TayebehNaghipour, AliSahraei, RezaSoheyli, Ehsan2025-09-252025-09-2520240272-88421873-3956https://doi.org/10.1016/j.ceramint.2024.05.070https://hdl.handle.net/20.500.12573/3762Naghipour, Ali/0000-0003-4151-9178; Sahraei, Reza/0000-0001-7104-2126; Soheyli, Ehsan/0000-0002-1403-7934The primary obstacle faced by researchers in the field of luminescent metal-halide perovskites is their inherent instability, prompting a shift in focus towards enhancing the stability of perovskite nanocrystals (PNCs). One of the promising approaches to address this challenge involves the utilization of metal-organic frameworks (MOFs) to fabricate PNCs@MOF composites. The present study reports a facile and low-cost colloidal strategy to prepare (Et3NH)PbBr3 PNCs followed by their encapsulation within UiO-67 to enhance their photoluminescence (PL) emission stability. The PNCs and modified UiO-67 were prepared separately via simple and efficient ligandassisted reprecipitation (LARP) and hydrothermal methods, respectively. After modification of the UiO-67, the pore sizes experienced a substantial increase from 1.90 to 28.84 nm which significantly facilitated the localization of PNCs within the porous matrix. Under a full survey of experimental conditions, the resulting (Et3NH) PbBr3@UiO-67 composite exhibited a bright deep-blue emission at around 410 nm with an emission quantum yield of 52 %. The emission durability of the fabricated PNCs@MOF composites was assessed against temperature and long-time of storage, confirming the superior advantages of MOF even at elevated temperatures of up to 100 degrees C. The stable and luminous deep-blue emission displayed by the PNCs@MOF composites in this investigation, offers a promising advancement in materials development for optoelectronic applications.eninfo:eu-repo/semantics/closedAccess(Et3Nh)Pbbr3 PerovskiteZr-Based MofModified UiO-67Deep Blue EmissionStable EmissionArticle10.1016/j.ceramint.2024.05.0702-s2.0-85192928681