Long-afterglow hybrid halide perovskites

Article Chemistry, Multidisciplinary

Light/Force-Sensitive 0D Lead-Free Perovskites: From Highly Efficient Blue Afterglow to White Phosphorescence with Near-Unity Quantum Efficiency

Shangwei Feng et al.

Summary: New types of zero-dimensional perovskites with blue room-temperature phosphorescence were obtained and found to be highly sensitive to external light and force stimuli. The quantum yield of blue phosphorescence was enhanced and high-efficiency white phosphorescence was achieved by introducing Sb3+. This work overcomes the challenges of low quantum yield and short lifetime of blue phosphorescence, providing a feasible method for achieving high-efficiency white phosphorescence.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Chemistry, Multidisciplinary

Integrated Afterglow and Self-Trapped Exciton Emissions in Hybrid Metal Halides for Anti-Counterfeiting Applications

Zhishan Luo et al.

Summary: This study successfully achieved tunable emissions from organic and inorganic units in 0D hybrid metal halides and demonstrated their potential in anti-counterfeiting applications.

ADVANCED MATERIALS (2022)

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Article Materials Science, Multidisciplinary

Zero-Dimensional Organic Copper(I) Iodide Hybrid with High Anti-Water Stability for Blue-Light-Excitable Solid-State Lighting

Binbin Su et al.

Summary: The discovery of rare-earth free luminescent materials that can be excited by blue light is highly significant for solid-state lighting applications. In this study, a Cu(I)-based 0D luminescent hybrid was synthesized and its luminescence mechanism was investigated. Additionally, a warm white LED device was successfully fabricated with improved structural stability.

ADVANCED OPTICAL MATERIALS (2022)

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Article Nanoscience & Nanotechnology

Two-Dimensional Hybrid Perovskitoid Micro/nanosheets: Colorful Ultralong Phosphorescence, Delayed Fluorescence, and Anisotropic Optical Waveguide

Meiqi Dai et al.

Summary: This study fabricated a new type of organic metal hybrid perovskitoid (OMHP) two-dimensional microcrystal with dual emission properties, which can be highly tuned by changing the excitation wavelength, temperature, and decayed time. The microcrystal exhibits extremely high linearly polarized fluorescence-phosphorescence emission, promising for the development of polarization-sensitive luminescent materials.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Chemistry, Multidisciplinary

Highly Efficient and Ultralong Afterglow Emission with Anti-Thermal Quenching from CsCdCl3 : Mn Perovskite Single Crystals

Zhe Tang et al.

Summary: This study proposes a novel strategy based on energy transfer to achieve efficient and long-lived phosphorescence by transferring triplet self-trapped excitons to Mn2+ dopants in CsCdCl3 perovskite materials. The doped CsCdCl3 exhibits high emission efficiency and long afterglow duration, with anti-thermal quenching properties. In-depth studies and calculations provide evidence for the mechanism of the anti-thermal quenching emission.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Chemistry, Multidisciplinary

Sequential and Reversible Phase Transformations in Zero-Dimensional Organic-Inorganic Hybrid Sb-based Halides towards Multiple Emissions

Bohan Li et al.

Summary: This study reports two new OD organic-inorganic hybrid Sb-based halides with reversible structural phase transformation and tunable emissions. The color of emissions can be changed by dehydration and rehydration, and a glassy material with near-infrared luminescence can be formed by heat treatment.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Chemistry, Physical

Stimulating Efficient and Stable Ultralong Phosphorescence of 2D Perovskites by Dual-Mode Triplet Exciton Stabilization

Lei Ge et al.

Summary: Efficient ultralong room temperature phosphorescence (URTP) emission from two-dimensional perovskites is achieved by stabilizing the triplet excitons of organic cations. Through methoxyl group modification, a strong URTP with good environmental and thermal stability is obtained. Furthermore, multiple information encryption and afterglow white lighting devices are realized, expanding the development of advanced 2D URTP materials and applications.

CHEMISTRY OF MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Boosting Wide-Range Tunable Long-Afterglow in 1D Metal-Organic Halide Micro/Nanocrystals for Space/Time-Resolved Information Photonics

Bo Zhou et al.

Summary: This study developed new types of metal-organic halide micro/nanocrystals with tunable afterglow properties, achieved by rational control over both ultralong-lived room-temperature phosphorescence and thermally activated delayed fluorescence. This opens up possibilities for achieving ultralong afterglow emission in low-dimensional micro/nanostructures.

ADVANCED MATERIALS (2021)

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Article Multidisciplinary Sciences

Indium-antimony-halide single crystals for high-efficiency white-light emission and anti-counterfeiting

Jun-Hua Wei et al.

Summary: This study reports a series of zero-dimensional indium-antimony alloyed halide single crystals with tunable emission, showing bright yellow emission at 320 nm excitation and bright white-light emission at 365 nm excitation. The blue emission associated with BAPP(4+) and the orange emission from inorganic polyhedron function as a pair of complementary colors affording white light. Additionally, the materials exhibit interesting afterglow behavior and excitation-dependent emission property, making them high-performance anti-counterfeiting/information storage materials.

SCIENCE ADVANCES (2021)

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Article Multidisciplinary Sciences