Abstract Luminescent metal halide materials with flexible crystallography/electronic structures and tunable emission have demonstrated broad application prospects in the visible light region. However, designing near‐infrared (NIR) light‐emitting halides remains a challenge. Here, an enlightening prototype is proposed to explore high‐efficiency broadband NIR systems by incorporating Sb 3+ into Cs 2 ZnCl 4 matrix. Combined experimental analysis density functional theory calculations reveal...

Abstract The incorporation of impurity ions or doping is a promising method for controlling the electronic and optical properties structural stability halide perovskite nanocrystals (NCs). Herein, we establish relationships between rare‐earth intrinsic emission lead‐free double Cs 2 AgInCl 6 NCs to impart tune performances in visible light region. Tb 3+ were incorporated into occupied In sites as verified by both crystallographic analyses first‐principles calculations. Trace amounts Bi...

Abstract Emerging lead‐free metal halides with low toxicity and unparalleled optoelectronic properties have attracted growing research interests, also demonstrating extensive application potentials. Among these, Sb 3+ ‐based all‐inorganic/organic–inorganic hybrid become a vital group due to the special energy level distribution along diverse optical properties. However, there remains gap in understanding relationship between crystal structure radiation process of involved emission. Herein,...

Abstract High‐performance tin‐lead perovskite solar cells (PSCs) are needed for all‐perovskite‐tandem cells. However, iodide related fast photodegradation severely limits the operational stability of Sn‐Pb perovskites despite demonstrated high efficiency and thermal stability. Herein, this work employs an alkylammonium pseudo‐halogen additive to enhance power conversion (PCE) photostability methylammonium (MA)‐free, PSCs. Density functional theory (DFT) calculations reveal that...

Abstract Interstitial iodides are the most critical type of defects in perovskite solar cells that limits efficiency and stability. They can be generated during solution, film, device processing, further accelerating degradation. Herein, we find introducing a small amount zinc salt- trifluoromethane sulfonate (Zn(OOSCF 3 ) 2 solution control iodide resultant perovskites ink films. CF SOO ̶ vigorously suppresses molecular iodine formation by reducing it to iodide. At same time, cations...

Organic-inorganic hybrid metal halides with zero-dimensional (0D) structure has emerged as a new class of light-emitting materials. Herein, lead-free compound (C9NH20)2MnBr4 been discovered and temperature-dependent phase transition identified for two phases (space group P21/c C2/c) in which individual [MnBr4]2- anions connect organic cations, (C9NH20+) (1-buty-1-methylpyrrolidinium+), forming periodic 0D blocks. A green emission band, peaking at 528 nm high photoluminescence quantum...

Abstract Enhancing photoluminescence quantum yield (PLQY) is one of the most important issues in photoluminescent materials. Herein, a molecule design strategy to improve PLQY 0D metal halides proposed. Two new lead‐free organic–inorganic halide hybrids with broadband orange emissions have been prepared increase 57% from (C 6 N 2 H 16 )SbCl 5 ( I ) ⋅H O II by introducing molecules. These two compounds very similar inorganic frameworks, except that incorporation water molecules increases...

Lead-free zero-dimensional (0D) organic-inorganic metal halide hybrids have recently attracted special attention as luminescent materials. However, their structural stability is still a challenge for the further development. Here, we select Sn4+ B-site inorganic cation and obtain new tin(IV)-based (C6N2H16Cl)2SnCl6 with remarkable air stability. exhibits blue broadband emission originating from self-trapping excitons (STEs) intensity remains stable over three months. When temperature rises...

The understanding of broad-band emission mechanisms on low-dimensional metal halides is an urgent need for the design principle these materials and their photoluminescence tuning. Herein, a new zero-dimensional (0D) organic–inorganic hybrid material (C9NH20)6Pb3Br12 has been discovered, in which face-sharing PbBr6 trimer clusters crystallize with organic cations (C9NH20+), forming periodic structure 0D blocks. Broad-band green peaking at about 522 nm was observed this material, full width...

Abstract Zero‐dimensional (0D) hybrid metal halides are promising light emitters. However, it is still challenging to accurately design their structures with targeted photoluminescence properties. Herein, high pressure used change the self‐trapped exciton (STE) emission of 0D (bmpy) 9 [ZnBr 4 ] 2 [Pb 3 Br 11 (bmpy: 1‐butyl‐1‐methylpyrrolidinium). Under initial compression, simultaneous contraction and distortion photoactive 5− vary equilibrium STE emissions between different excited states,...

Abstract With single‐component photoinduced white‐light (WL) emission, low‐dimensional hybrid halide perovskites have emerged as a new generation of luminescent materials; however, the effect halogens on intrinsic light emissions and corresponding mechanisms is still unknown. Herein, investigation family two‐dimensional (2D) R 2 PbBr 4− x Cl ( = BA + , PMA PEA ; 0, 1, 2, 3, 4) highlights influence emission to reveal dependence photoluminescence nature contribution halogens. Ultrabroad...

Abstract Zero‐dimensional (0D) organic–inorganic hybrid luminescent metal halides have many promising optoelectronic applications; however, the single building unit in 0D framework restricts their multimode optical control and photoluminescence tuning. Thus, it remains urgent but challenging to rationally design distinct anionic polyhedral with different functions further expand this family by an equivalent cation substitution halogen replacement. Herein, (C 9 NH 20 ) [Pb 3 X 11 ](MX 4 2 (X...

Dopants in luminescent metal halides provide an alternative way for photoluminescence tuning towards versatile optical applications.

Abstract Zero‐dimensional (0D) organic−inorganic hybrid metal halides haveunprecedented degrees of freedom for structural tunability and photoluminescence modulation. Here, the 0D isomorphic mixed (C 9 NH 20 ) Pb 3 Zn 2 Br 19(1− x Cl 19 ( = 0–1) with continuous halogen contents control, exhibiting tunable emission enhancement quantum yield (PLQY) are reported. The competitive bromine to chlorine substitution process in occurs first [ZnBr 4− ] 2− tetrahedron before [Pb 11− 5− trimer....

Abstract Very little is known about the realm of solid‐state metal halide compounds comprising two or more halometalate anions. Such would be great interest if their optical and electronic properties could rationally designed. Herein, we report a new example cluster‐assembled compound (C 9 NH 20 ) [Pb 3 Br 11 ](MnBr 4 2 , featuring distinctly different anionic polyhedra, namely, rare lead cluster ] 5− [MnBr 2− . In accordance with its multinary zero‐dimensional (0D) structure, this found to...

We propose a postsynthetic anion exchange method <italic>via</italic> ZnBr₂ addition to enhance photoluminescence quantum yield and stability of CsPbI₃ perovskite nanocrystals.

Organometal halide perovskites are promising materials for optoelectronic applications, whose commercial realization depends critically on their stability under multiple environmental factors.

Abstract Zero‐dimensional (0D) hybrid metal halides are promising light emitters. However, it is still challenging to accurately design their structures with targeted photoluminescence properties. Herein, high pressure used change the self‐trapped exciton (STE) emission of 0D (bmpy) 9 [ZnBr 4 ] 2 [Pb 3 Br 11 (bmpy: 1‐butyl‐1‐methylpyrrolidinium). Under initial compression, simultaneous contraction and distortion photoactive 5− vary equilibrium STE emissions between different excited states,...

Two series of ten 3D porous coordination polymers (PCPs), [Ag(L434)](BF4)(DMF)2 (1·BF4·DMF), [Ag(L434)](BF4)(CH3CN)2 (1·BF4·CH3CN), [Ag(L434)](BF4)(DMA)(CH3OH) (1·BF4·DMA/CH3OH), [Ag(L434)](ClO4)(DMF)2 (1·ClO4·DMF), [Ag(L434)](CF3SO3)(DMF) (1·CF3SO3·DMF), [Ag(L434)](ClO4)(CH3CN)2 (1·ClO4·CH3CN), [Ag(L434)](PF6)(CH3CN)2 (1·PF6·CH3CN), [Ag(L434)](CH3SO3)(DMA) (1·CH3SO3·DMA), [Ag(L434)](CF3SO3)(DMA) (1·CF3SO3·DMA), and [Ag2(L434)2](BF4)2(CH3OH)2 (2·BF4·CH3OH), have been prepared via assembling...

Abstract The incorporation of impurity ions or doping is a promising method for controlling the electronic and optical properties structural stability halide perovskite nanocrystals (NCs). Herein, we establish relationships between rare‐earth intrinsic emission lead‐free double Cs 2 AgInCl 6 NCs to impart tune performances in visible light region. Tb 3+ were incorporated into occupied In sites as verified by both crystallographic analyses first‐principles calculations. Trace amounts Bi...