Turning Self‐Trapped Exciton Emission to Near‐Infrared Region in Thermochromism Zero‐Dimensional Hybrid Metal Halides DOI Creative Commons
Tianxin Bai, Xiaochen Wang, Yan‐Mei He

et al.

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(20)

Published: July 14, 2023

Abstract Low dimensional lead‐free metal halides have become the spotlight of research on developing multifunctional optoelectronic materials as their properties show a wide range tunability. However, most reported low only function in ultra‐violet to visible due large bandgap. Moreover, organic cation based limited thermal stability; other hand, inorganic counterparts suffer from solution processability. A hybrid approach is proposed, where zero (0D) halide ((DFPD) 2 CsBiI 6 ) developed by using mixed organic–inorganic cations: 4, 4‐difluoropiperidine (DFPD) and cesium (Cs + ). This ensures both stability Furthermore, [BiI ] 3− octahedra are serving active light absorption units, which bandgap be located at region. Its photoluminescence (PL) further shifted near infrared (NIR) region doping with antimony (Sb 3+ The properties: thermochromic behavior, detection, NIR emitting. study expands scope 0D halides.

Language: Английский

A Melt‐Quenched Luminescent Glass of an Organic–Inorganic Manganese Halide as a Large‐Area Scintillator for Radiation Detection DOI
Jianbin Luo,

Jun‐Hua Wei,

Zhizhong Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(7)

Published: Dec. 12, 2022

Glass is a group of materials with appealing qualities, including simplicity in fabrication, durability, and high transparency, they play crucial role the optics field. In this paper, new organic-inorganic metal halide luminescent glass exhibiting >78 % transmittance at 506-800 nm range together photoluminescence quantum yield (PLQY) 28.5 reported through low-temperature melt-quenching approach pre-synthesized (HTPP)2 MnBr4 (HTPP=hexyltriphenylphosphonium) single crystal. Temperature-dependent X-ray diffraction, polarizing microscopy, molecular dynamics simulations were combined to investigate glass-crystal interconversion process, revealing disordered nature glassy state. Benefiting from transparent nature, yields an outstanding spatial resolution 10 lp mm-1 for imaging. The superb optical properties facility large-scale fabrication distinguish as highly promising class devices.

Language: Английский

Citations

99
Ultralow‐loss Optical Waveguides through Balancing Deep‐Blue TADF and Orange Room Temperature Phosphorescence in Hybrid Antimony Halide Microstructures DOI Open Access
Bo Zhou, Zhenhong Qi,

Meiqi Dai

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(39)

Published: Aug. 14, 2023

Harnessing the potential of thermally activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) is crucial for developing light-emitting diodes (LEDs), lasers, sensors, many others. However, effective strategies in this domain are still relatively scarce. This study presents a new approach to achieving highly efficient deep-blue TADF (with PLQY 25 %) low-energy orange RTP 90 through fabrication lead-free hybrid halides. class monomeric dimeric 0D antimony halides can be facilely synthesized using bottom-up solution process, requiring only few seconds minutes, which offer exceptional stability nontoxicity. By leveraging adaptable molecular arrangement crystal packing modes, demonstrate ability self-assemble into regular 1D microrod 2D microplate morphologies. self-assembly facilitated by multiple non-covalent interactions between inorganic cores organic shells. Notably, these microstructures exhibit outstanding polarized luminescence function as low-dimensional optical waveguides with remarkably low optical-loss coefficients. Therefore, work not pioneering demonstration halides, but also introduces micro/nanostructures that hold promising applications white LEDs photonic systems.

Language: Английский

Citations

82
Zero-dimensional halide hybrid bulk glass exhibiting reversible photochromic ultralong phosphorescence DOI Creative Commons

Fei Nie,

Dongpeng Yan

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 29, 2024

Dynamically responsive materials, capable of reversible changes in color appearance and/or photoemission upon external stimuli, have attracted substantial attention across various fields. This study presents an effective approach wherein switchable modulation photochromism and ultralong phosphorescence can be achieved simultaneously a zero-dimensional organic-inorganic halide hybrid glass doped with 4,4´-bipyridine. The facile fabrication large-scale glasses is accomplished through combined grinding-melting-quenching process. persistent luminescence regulated the photochromic switch induced by photo-generated radicals. Furthermore, incorporation aggregation-induced chirality effect generates intriguing circularly polarized luminescence, optical dissymmetry factor (g

Language: Английский

Citations

57
Near‐Infrared Light Emitting Metal Halides: Materials, Mechanisms, and Applications DOI Creative Commons
Ying Liu, Francesco Di Stasio, Chenghao Bi

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 21, 2024

Near-Infrared (NIR) light emitting metal halides are emerging as a new generation of optical materials owing to their appealing features, which include low-cost synthesis, solution processability, and adjustable properties. NIR-emitting perovskite-based light-emitting diodes (LEDs) have reached an external quantum efficiency (EQE) over 20% device stability 10,000 h. Such results sparked interest in exploring NIR halide emitters. In this review, several different types halides, including lead/tin bromide/iodide perovskites, lanthanide ions doped/based double low dimensional hybrid Bi

Language: Английский

Citations

51
Glassy inorganic-organic hybrid materials for photonic applications DOI
Bo Zhou, Dongpeng Yan

Matter, Journal Year: 2024, Volume and Issue: 7(6), P. 1950 - 1976

Published: April 26, 2024

Language: Английский

Citations

50
Multiphase Transformation in Hybrid Copper(I)-Based Halides Enable Improved X-ray Scintillation and Real-Time Imaging DOI
Bohan Li, Jiance Jin, Xia Liu

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(4), P. 1542 - 1548

Published: March 19, 2024

Crystal-glass phase transformation and glass recrystallization in zero-dimensional (0D) hybrid metal halides make them thriving X-ray scintillators with the advantages of large-area fabrication improved performance. Herein, we report three 0D copper(I) composed identical organic cations versatile self-assembly copper-iodide anions find that volumes inorganic groups are related to their lattice energies, which conformationally governed thermodynamics formation through destabilization. A subsequent heating counterparts allows bulk glass-ceramic via recrystallization, exhibiting outstanding scintillation performances (with a light yield 64 000 ph MeV–1 detection limit 72.6 nGy s–1) high stability for real-time imaging (spatial resolution above 20 lp mm–1). This multiphase strategy luminescence halide opens an exploratory way structural design engineering scintillator screens imaging.

Language: Английский

Citations

21
The effect of solvent on the formation of low-dimensional metal halides and their self-trapped exciton emission DOI Creative Commons
Xiaochen Wang, Tianxin Bai, Jinglu Sun

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150257 - 150257

Published: March 8, 2024

Low-dimensional organic–inorganic hybrid metal halides, with broadband luminescence, have attracted much attention for optoelectronic applications due to their rich in structural diversity and solution processibility. However, it is still unclear about how the solvent molecules influence properties of processed low-dimensional halides. Here, we prepared five different antimony-based crystal structures, [SbCl6]3- as halide octahedron 4, 4-difluoropiperidine (DFPD+) organic cation, by using solvents: hydrochloric acid (HCl) aqueous four solvents (dimethylformamide (DMF), methanol (MeOH), acetonitrile (ACN) dimethylacetamide (DMAC)). We revealed relation between structures optical properties, found participation structure causes significant lattice distortions, which beneficial achieving self-trapped exciton (STE) emission. Among them, (DFPD)6SbCl9·2DMAC exhibits a remarkable photoluminescence (PL) quantum yield approximately 90 %. The STE dynamics were characterized femtosecond transient absorption time-resolved PL spectroscopies. Simultaneously, this study also provides new directions expanding application luminescent halides: addition UV-LEDs, efficient rapid detection or can be achieved raw materials, while realizing potential multi-level anti-counterfeiting.

Language: Английский

Citations

20
Near‐infrared emitting metal halide materials: Luminescence design and applications DOI Creative Commons
Dongjie� Liu, Peipei Dang,

Guodong Zhang

et al.

InfoMat, Journal Year: 2024, Volume and Issue: 6(5)

Published: March 28, 2024

Abstract Near‐infrared (NIR) luminescent metal halide (LMH) materials have attracted great attention in various optoelectronic applications due to their low‐temperature solution‐processable synthesis, abundant crystallographic/electronic structures, and unique properties. However, some challenges still remain luminescence design, performance improvement, application assignments. This review systematically summarizes the development of NIR LMHs through classifying origins into four major categories: band‐edge emission, self‐trapped exciton (STE) ion defect‐related emission. The mechanisms different types are discussed detail by analyzing typical examples. Reasonable strategies for designing optimizing luminescence/optoelectronic properties summarized, including bandgap engineering, self‐trapping state chemical composition modification, energy transfer, other auxiliary such as improvement synthesis scheme post‐processing. Furthermore, prospects based on devices revealed, phosphor‐converted light‐emitting diodes (LEDs), electroluminescent LEDs, photodetectors, solar cells, x‐ray scintillators, well demonstrations related practical applications. Finally, existing future perspectives LMH critically proposed. aims provide general understanding guidance design high‐performance materials. image

Language: Английский

Citations

20
Emerging 0D Hybrid Metal Halide Luminescent Glasses DOI
Bohan Li,

Yuzhen Wang,

Yan Xu

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

0D hybrid metal halide (HMH) luminescent glasses have garnered significant attentions for its chemical diversity in optoelectronic applications and it also retains the skeleton connectivity coordination mode of crystalline counterparts while exhibiting various physics/chemistry characteristics distinct from states. However, understanding glass-forming ability specific structural origins underpinning properties HMH remains elusive. In this review, is started solid-liquid phase transition thermodynamic analysis HMHs formed through melt-quenching, summarize current compounds capable stably forming glassy phases via design. The characterization methods are further discussed highlight exceptional transparency, properties, glass crystallization behaviors. Moreover, application prospects demonstrated by these been presented accordingly X-ray detection imaging, anti-counterfeiting, information encryption. Finally, perspective offered into future development emerging family their applications.

Language: Английский

Citations

2
Highly Luminescent One‐Dimensional Organic–Inorganic Hybrid Double‐Perovskite‐Inspired Materials for Single‐Component Warm White‐Light‐Emitting Diodes DOI
Tianxin Bai, Xiaochen Wang, Zhongyi Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(2)

Published: Nov. 15, 2022

Double perovskites (DPs) are one of the most promising candidates for developing white light-emitting diodes (WLEDs) owing to their intrinsic broadband emission from self-trapped excitons (STEs). Translation three-dimensional (3D) DPs one-dimensional (1D) analogues, which could break octahedral tolerance factor limit, is so far remaining unexplored. Herein, by employing a fluorinated organic cation, we report series highly luminescent 1D DP-inspired materials, (DFPD)2 MI InBr6 (DFPD=4,4-difluoropiperidinium, =K+ and Rb+ ). Highly efficient warm-white photoluminescence quantum yield 92 % achieved doping 0.3 Sb3+ in KInBr6 . Furthermore, single-component warm-WLEDs fabricated with :Sb luminance 300 cd/m2 , best-performing lead-free metal-halides WLEDs reported far. Our study expands scope In-based 3D 1D, exhibit superior optical performances broad application prospects.

Language: Английский

Citations

69