Boosting Blue Emission of Organic Cations in a Sn(IV)-Based Perovskite by Constructing Intermolecular Interactions.

Improving the photoluminescence (PL) efficiency of organic luminescent molecules is still a great challenge. Herein, a novel zero-dimensional Sn(IV)-based halide (C9H8N)2SnCl6 is prepared by assembling inactive quinoline cations and stable [SnCl6]2- polyhedra. Experimental characterizations and theoretical calculations show that the blue emission of (C9H8N)2SnCl6 centered at 433 nm is derived from the organic cations. Surprisingly, the PL efficiency of the as-prepared halide is nearly 50 times higher than that of the organic precursor and exhibits ultrahigh stability. Structural analysis shows that the introduction of inorganic clusters regulates the stacking mode of organic components and forms hydrogen bonds. This strong intermolecular interaction enhances the structural rigidity of (C9H8N)2SnCl6, inhibits concentration quenching and vibrational dissipation, and thus significantly improves the PL efficiency and stability of the organic cations. This work provides an important way to improve the PL performance and stability of organic species by constructing efficient intermolecular interactions.

[1]  Z. Xia,et al.  Highly Distorted Antimony (III) Chloride [Sb2Cl8]2- Dimers for Near-Infrared Luminescence up to 1070 nm. , 2022, Angewandte Chemie.

[2]  Dongpeng Yan,et al.  Quadruple Anticounterfeiting Encryption: Anion-Modulated Forward and Reverse Excitation-Dependent Multicolor Afterglow in Two-Component Ionic Crystals. , 2022, ACS applied materials & interfaces.

[3]  M. Molokeev,et al.  Zero‐Dimensional Organic Copper(I) Iodide Hybrid with High Anti‐Water Stability for Blue‐Light‐Excitable Solid‐State Lighting , 2022, Advanced Optical Materials.

[4]  Hui Li,et al.  Defect Passivation in Air‐Stable Tin(IV)‐Halide Single Crystal for Emissive Self‐Trapped Excitons , 2021, Advanced Functional Materials.

[5]  Biwu Ma,et al.  Metal Halide Scaffolded Assemblies of Organic Molecules with Enhanced Emission and Room Temperature Phosphorescence. , 2021, The journal of physical chemistry letters.

[6]  Qingkun Kong,et al.  Controlling Photoluminescence and Photocatalysis Activities in Lead-Free Cs2PtxSn1-xCl6 Perovskites via Ion Substitution. , 2021, Angewandte Chemie.

[7]  Xudong Wang,et al.  Activation of Self‐Trapped Emission in Stable Bismuth‐Halide Perovskite by Suppressing Strong Exciton–Phonon Coupling , 2021, Advanced Functional Materials.

[8]  R. Xie,et al.  Large-Scale Room-Temperature Synthesis of High-Efficiency Lead-Free Perovskite Derivative (NH4)2Sn1-xTexCl6 Phosphor for Warm wLEDs , 2021 .

[9]  R. Xie,et al.  Tunable White Light Emission in a Zero‐Dimensional Organic–Inorganic Metal Halide Hybrid with Ultra‐High Color Rendering Index , 2021, Advanced Optical Materials.

[10]  Zhigang Zang,et al.  All-Inorganic Lead-Free Perovskite(-Like) Single Crystals: Synthesis, Properties, and Applications. , 2021, Small methods.

[11]  Zheshuai Lin,et al.  Role of Metal-Chloride Anions in Photoluminescence Regulations for Hybrid Metal Halides. , 2021, The journal of physical chemistry letters.

[12]  William W. Yu,et al.  Lead‐Free Halide Perovskites for Light Emission: Recent Advances and Perspectives , 2021, Advanced science.

[13]  Jinhuan Sun,et al.  Recent Advances in Polymer-Based Photothermal Materials for Biological Applications , 2020 .

[14]  H. Miao,et al.  Quantifiable Polymeric Fluorescent Ratiometric γ-Ray Chemosensor. , 2020, ACS applied materials & interfaces.

[15]  K. Raghavachari,et al.  Plug-and-Play Optical Materials from Fluorescent Dyes and Macrocycles , 2020, Chem.

[16]  Guangda Niu,et al.  Lead‐Free Perovskite Variant Solid Solutions Cs2Sn1–xTexCl6: Bright Luminescence and High Anti‐Water Stability , 2020, Advanced materials.

[17]  F. Liang,et al.  Lead-Free Tin (IV)-Based Organic-Inorganic Metal Halide Hybrids with Excellent Stability and Blue-Broadband Emission. , 2020, The journal of physical chemistry letters.

[18]  Zhiqian Guo,et al.  High-Performance Quinoline-Malononitrile Core as Diversity-Orientated AIEgens. , 2019, Angewandte Chemie.

[19]  B. Saparov,et al.  Highly Efficient Broad-Band Luminescence Involving Organic and Inorganic Molecules in a Zero-Dimensional Hybrid Lead Chloride , 2019, The Journal of Physical Chemistry C.

[20]  T. M. McWhorter,et al.  Hybrid Organic–Inorganic Halides (C5H7N2)2MBr4 (M = Hg, Zn) with High Color Rendering Index and High-Efficiency White-Light Emission , 2019, Chemistry of Materials.

[21]  Yanfa Yan,et al.  From Lead Halide Perovskites to Lead‐Free Metal Halide Perovskites and Perovskite Derivatives , 2019, Advanced materials.

[22]  Yi Luo,et al.  Organic field-effect optical waveguides , 2018, Nature Communications.

[23]  Nanxi Wang,et al.  Genetically Encoding Quinoline Reverses Chromophore Charge and Enables Fluorescent Protein Brightening in Acidic Vesicles. , 2018, Journal of the American Chemical Society.

[24]  Zhiwei Yang,et al.  Fluorescent Organic Nanoparticles Constructed by a Facile “Self-Isolation Enhanced Emission” Strategy for Cell Imaging , 2018 .

[25]  J. Gierschner,et al.  Room-Temperature-Phosphorescence-Based Dissolved Oxygen Detection by Core-Shell Polymer Nanoparticles Containing Metal-Free Organic Phosphors. , 2017, Angewandte Chemie.

[26]  X. Zhu,et al.  Lead halide perovskites: Crystal-liquid duality, phonon glass electron crystals, and large polaron formation , 2017, Science Advances.

[27]  T. Fukushima,et al.  Unveiling a New Aspect of Simple Arylboronic Esters: Long-Lived Room-Temperature Phosphorescence from Heavy-Atom-Free Molecules. , 2017, Journal of the American Chemical Society.

[28]  Wei Huang,et al.  Excited State Modulation for Organic Afterglow: Materials and Applications , 2016, Advanced materials.

[29]  H. Tian,et al.  Recent Progress in Photoswitchable Supramolecular Self‐Assembling Systems , 2016 .

[30]  C. Che,et al.  Self‐Assembly of Functional Molecules into 1D Crystalline Nanostructures , 2015, Advanced materials.

[31]  C. Adachi,et al.  Efficient Persistent Room Temperature Phosphorescence in Organic Amorphous Materials under Ambient Conditions , 2013 .

[32]  A. Monkman,et al.  Room‐Temperature Phosphorescence From Films of Isolated Water‐Soluble Conjugated Polymers in Hydrogen‐Bonded Matrices , 2012 .

[33]  B. Tang,et al.  Crystallization-Induced Phosphorescence of Pure Organic Luminogens at Room Temperature , 2010 .

[34]  Ling Zang,et al.  One-dimensional self-assembly of planar pi-conjugated molecules: adaptable building blocks for organic nanodevices. , 2008, Accounts of chemical research.

[35]  Edward F. Valeev,et al.  Estimates of the Ab Initio Limit for π−π Interactions: The Benzene Dimer , 2002 .