Oriented Growth of Highly Emissive Manganese Halide Microrods for Dual‐Mode Low‐Loss Optical Waveguides DOI Creative Commons
Jin‐Feng Liao, Zhipeng Zhang, Gang Wang

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Окт. 9, 2024

Abstract Zero‐dimensional (0D) structured lead‐free metal halides have recently attracted widespread attention due to their high photoluminescence quantum yield (PLQY) and negligible self‐absorption, showing enormous potential as optical waveguides towards miniaturized photonic devices. However, the great difficulty in growth of rod‐like nano/micro‐sized morphologies, such applications been less explored. Herein, a new‐type emissive organic–inorganic manganese (II) halide crystal (TPS 2 MnCl 4 , TPS=C 18 H 15 S, triphenylsulfonium) form microrods is synthesized via facile chloride ion (Cl − ) induced oriented method. Due combination attractive features PLQY 86 %, self‐absorption smooth surface, TPS are well suited for use waveguide with an ultra‐low loss coefficient 1.20 ⋅ 10 −4 dB μm −1 superior that most hybrids, organic materials, polymers nanoclusters best our knowledge. Importantly, can further work dual‐mode waveguides, combining active passive light transmission functionalities one single crystal. In addition, also display remarkable performance lighting anti‐counterfeiting distinct properties commendable stability.

Язык: Английский

Tunable Circularly Polarized Luminescence from Polyether‐Based Liquid Crystalline Polymer DOI
Yi Chen,

Zhizhuang Li,

Yan Guan

и другие.

Macromolecular Chemistry and Physics, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Abstract Circularly polarized luminescence (CPL) materials have garnered considerable attention for applications in optical data storage, anti‐counterfeiting, and photonic devices. However, precisely controlling over chirality emissive properties of chiral luminescent polymers remains challenging. Herein, this work presents a series polyether‐based liquid crystalline copolymers (LCPs), denoted Cy x Ch y , synthesized via organocatalyzed ring‐opening copolymerization epoxides bearing cyanostilbene (Cy) cholesterol (Ch) units. The resulting exhibit controlled molar masses, narrow distributions, excellent thermal stability. crystal phase transitions tunable behavior dependent on content, progressing sequentially from nematic 4 1 3 2 to smectic ultimately . Notably, efficient π–π interactions moieties confer pronounced photoluminescence, with emission shifting shorter wavelengths as the proportion decreases. Simultaneously, segments introduce strong CPL signals, achieving |glum| values up 0.28 specific compositions. Remarkably, signal inversion is observed at 4:1 Cy:Ch ratio due selective Bragg reflection within self‐assembled copolymer matrix. These results demonstrate versatile pathway advanced LCPs robust activity, heralding new opportunities high‐performance optoelectronic technologies.

Язык: Английский

Процитировано

0
Enhancing Optical Properties of Zn‐Mn Solid Solution Hybrid Halides for Wide Color Gamut Backlight Displays DOI
Xianlong Zhao, Na Wang,

Kunjie Liu

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Сен. 18, 2024

Abstract Hybrid metal halides display a range of optical properties and hold promise for various applications such as solid‐state lighting, anti‐counterfeiting measures, backlight displays, X‐ray detection. The incorporation zinc into (C 13 H 26 N) 2 MnBr 4 aims to enhance its structural rigidity improve narrow band green light emission properties. resulting ZnBr compound exhibits an identical crystal structure , indicating the potential solid solution varying Zn Mn ratios within this framework. 0.2 0.8 Br significantly enhanced properties, including photoluminescence quantum yield 92%, minimum full width at half maximum 43 nm, 85% retention room temperature 420 K. Additionally, crystals ZnCl 7 18 ZnX (X = Br, I) are synthesized, with displaying luminescent color changes dependent on excitation. demonstrates reversible phase transitions alterations in A white light‐emitting diode utilizing commercial phosphors exhibited gamut 112.2% National Television Standards Committee 1931 Standard. This investigation introduces stable highly efficient narrow‐band phosphor suitable displays.

Язык: Английский

Процитировано

3
Oriented Growth of Highly Emissive Manganese Halide Microrods for Dual‐Mode Low‐Loss Optical Waveguides DOI Creative Commons
Jin‐Feng Liao, Zhipeng Zhang, Gang Wang

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Окт. 9, 2024

Abstract Zero‐dimensional (0D) structured lead‐free metal halides have recently attracted widespread attention due to their high photoluminescence quantum yield (PLQY) and negligible self‐absorption, showing enormous potential as optical waveguides towards miniaturized photonic devices. However, the great difficulty in growth of rod‐like nano/micro‐sized morphologies, such applications been less explored. Herein, a new‐type emissive organic–inorganic manganese (II) halide crystal (TPS 2 MnCl 4 , TPS=C 18 H 15 S, triphenylsulfonium) form microrods is synthesized via facile chloride ion (Cl − ) induced oriented method. Due combination attractive features PLQY 86 %, self‐absorption smooth surface, TPS are well suited for use waveguide with an ultra‐low loss coefficient 1.20 ⋅ 10 −4 dB μm −1 superior that most hybrids, organic materials, polymers nanoclusters best our knowledge. Importantly, can further work dual‐mode waveguides, combining active passive light transmission functionalities one single crystal. In addition, also display remarkable performance lighting anti‐counterfeiting distinct properties commendable stability.

Язык: Английский

Процитировано

2
Oriented Growth of Highly Emissive Manganese Halide Microrods for Dual‐Mode Low‐Loss Optical Waveguides DOI Creative Commons
Jin‐Feng Liao, Zhipeng Zhang, Gang Wang

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Окт. 9, 2024

Abstract Zero‐dimensional (0D) structured lead‐free metal halides have recently attracted widespread attention due to their high photoluminescence quantum yield (PLQY) and negligible self‐absorption, showing enormous potential as optical waveguides towards miniaturized photonic devices. However, the great difficulty in growth of rod‐like nano/micro‐sized morphologies, such applications been less explored. Herein, a new‐type emissive organic–inorganic manganese (II) halide crystal (TPS 2 MnCl 4 , TPS=C 18 H 15 S, triphenylsulfonium) form microrods is synthesized via facile chloride ion (Cl − ) induced oriented method. Due combination attractive features PLQY 86 %, self‐absorption smooth surface, TPS are well suited for use waveguide with an ultra‐low loss coefficient 1.20 ⋅ 10 −4 dB μm −1 superior that most hybrids, organic materials, polymers nanoclusters best our knowledge. Importantly, can further work dual‐mode waveguides, combining active passive light transmission functionalities one single crystal. In addition, also display remarkable performance lighting anti‐counterfeiting distinct properties commendable stability.

Язык: Английский

Процитировано

0