Mechanochemistry enables optical-electrical multifunctional response and tunability in two-dimensional hybrid perovskites

Abstract

Two-dimensional (2D) organic-inorganic hybrid perovskites (OIHPs) have attracted phenomenal attention because of their superior optoelectronic performances. The combination of their structural tunability and material stability offers an unprecedented opportunity to engineer materials with unique functionalities. However, developing a rapid and effective design method for introducing luminescence into dielectric switch and realizing controllable regulation has been an enormous challenge. Thus far, materials with tunable optoelectronic multichannel response have not been successfully implemented. In this study, we successfully developed a facile and effective mechanochemical method for realizing the integration and regulation of luminescence and dielectric switch in 2D perovskites, which is unprecedented for the design of dielectric switching materials. The mild external mechanical stimuli enabled the formation of Mn 2+ ion-doped 2D hybrid perovskites (Cyclopropylammonium) 2 Pb 1−x Mn x Br 4 with excellent dielectric switch and rapidly controllable luminescence of highly efficient blue light, white light, pink light, and orange light. This work will provide a new perspective on the rapid and effective design of multifunctional materials and can inspire the future development of low-cost and high-efficiency electronics.

Hybrid Optical-Electrical Perovskite Can Be a Ferroelastic Semiconductor

“…[27][28][29][30][31][32][33][34][35][36][37] Based on this nature, sensor, switch and so on can be designed that can enrich and facilitate our daily life. [38][39][40][41][42][43][44][45] In conclusion, the discovery and design of new molecular ferroelastics is a pressing research topic.…”

Structure‐Property Relationships and Idiosyncrasies of Bulk, 2D Hybrid Lead Bromide Perovskites

“…Organic Spacer Cation Space group (R.T.) (EA) 2 PbBr 4 , [91] (BA) 2 PbBr 4 , [92] (IBA) 2 PbBr 4 [93] (C 10 H 21 NH 3 ) 2 PbBr 4 [94] Simple Alkyl Monoammonium Cations: (NH 3 (CH 2 ) 4 NH 3 )PbBr 4 , [55] (NH 3 (CH 2 ) 6 NH 3 )PbBr 4 , [55] (NH 3 (CH 2 ) 8 NH 3 )PbBr 4 , [55] (NH 3 (CH 2 ) 10 NH 3 )PbBr 4 , [55,141] (NH 3 (C 6 H 14 )NH 3 )PbBr 4 , [89] (N-MPDA)PbBr 4 , [123] (DMAPA)PbBr 4 , [124] (DMABA)PbBr 4 [124] Alkyl Diammonium Cations: (C 3 H 5 NH 3 ) 2 PbBr 4 , [88,269] (C 4 H 7 NH 3 ) 2 PbBr 4 , [88] (C 5 H 9 NH 3 ) 2 PbBr 4 , [88] (CHA) 2 PbBr 4 [88] Cyclic Alkyl Monoammonium Cations: (PMA) 2 PbBr 4 , [96] (PEA) 2 PbBr 4 , [96] (NMA) 2 PbBr 4 , [96] (2-NEA) (TzH) 2 PbBr 4 -I, [100] (TzH) 2 PbBr 4 -II [99] C2/c, P2 1 /c ). [97] Structural chirality transfer across the organic-inorganic interface in the 2D lead bromide perovskite structure was revealed, employing the chiral spacers R-(+)-(NEA) and S-(À )-(NEA) where NEA is 1-(1napthyl)ethylammonium.…”

2D lead-free organic–inorganic hybrid exhibiting dielectric and structural phase transition at higher temperatures

“…[29][30][31][32][33][34][35][36] In particular, two-dimensional organic-inorganic hybrid perovskite materials have received much attention in recent years. [37][38][39][40][41][42][43][44][45][46] By tuning their molecular structures, [47][48][49][50][51][52][53] phase transition materials could exhibit an appropriate phase transition temperature and dielectric properties. For example, Luo et al 54 obtained (3-bromopropylaminium) 2 (formamidinium) Pb 2 Br 7 (BFPB) with a high T c value by performing a halogen substitution strategy to introduce a bromine atom on the n-propylamine cation.…”