Achieving Ultralong Room-Temperature Phosphorescence in Two-Dimensional Metal-Halide Perovskites by Tuning Alkyl Chain Length DOI Creative Commons
Suqin Wang, Hui Zhu,

Ming Sheng

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(4), P. 108 - 108

Published: April 1, 2025

Two-dimensional (2D) metal-halide perovskites with highly efficient room-temperature phosphorescence (RTP) are rare due to their complex structures and intricate intermolecular interactions. In this study, by varying the alkyl chain length in organic amines, we synthesized two 2D perovskites, namely 4-POMACC 4-POEACC, both of which exhibit significant RTP emission. Notably, demonstrates a stronger green emission significantly longer lifetime (254 ms) higher photoluminescence quantum yield (9.5%) compared 4-POEACC. A thorough investigation structural optical properties reveals that shorter chains can enhance performance reduced molecular vibrations more effective exciton recombination. Computational calculations further show smaller energy gap between S1 Tn 4-POMA facilitates intersystem crossing, thereby improving performance. Based on remarkable properties, demonstrated applications information encryption. This work offers novel design strategy could inspire development next-generation materials.

Language: Английский

Efficient energy transfer from organic triplet states to Mn2+ dopants for dynamic tunable multicolor afterglow in 1D hybrid cadmium chloride DOI Creative Commons
Ke Zhang, Zhikai Qi, Xijiang Han

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Tuning Mn 2+ doping in the novel 1D hybrid metal halide enables afterglow color transitions from yellow-green to yellow, orange, and red, resulting efficient energy transfer stable organic triplet states 4 T 1 level of dopants.

Language: Английский

Citations

0
Stimulus-responsive organic room temperature phosphorescence materials based on host-guest doping systems DOI
Hua Feng, Weiying Gao, Dan Li

et al.

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: 1334, P. 141897 - 141897

Published: Feb. 28, 2025

Language: Английский

Citations

0
Mn(II)-Doped Perovskites with Carboxylic Acid Dimers Exhibiting Scintillation DOI
Tianqi Chen, Wenhao Yang,

Cui‐Mi Shi

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Layered hybrid metal halide perovskites, characterized by their distinctive quantum well structures and significant exciton binding energies, exhibit exceptional fluorescence properties, rendering them ideal candidates for high light yield scintillators. However, challenges remain in synthesizing layered perovskites with photoluminescence yields (PLQY), large Stokes shifts, stable radioluminescence (RL). In this study, a Mn(II)-doped perovskite was successfully synthesized. Structural rigidity is largely enhanced the unique carboxylic acid dimers, as result reducing nonradiative recombination induced stretching vibration. Mn(II) doping into (HOOC6H10NH3)2PbBr4 allows efficient energy transfer, which optimizes luminescence performance. The effects of self-absorption are almost eliminated shift doping. 4T1g-6A1g transition induces pronounced orange-red emission at 613 nm, PLQY significantly increasing from 14.76% to 64.24%. Additionally, scintillator demonstrates an outstanding 28,600 photons/MeV low detection limit 100.8 nGyair/s, maintaining stability under continuous X-ray exposure. These properties render it applications luminescent devices

Language: Английский

Citations

0
Achieving Ultralong Room-Temperature Phosphorescence in Two-Dimensional Metal-Halide Perovskites by Tuning Alkyl Chain Length DOI Creative Commons
Suqin Wang, Hui Zhu,

Ming Sheng

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(4), P. 108 - 108

Published: April 1, 2025

Two-dimensional (2D) metal-halide perovskites with highly efficient room-temperature phosphorescence (RTP) are rare due to their complex structures and intricate intermolecular interactions. In this study, by varying the alkyl chain length in organic amines, we synthesized two 2D perovskites, namely 4-POMACC 4-POEACC, both of which exhibit significant RTP emission. Notably, demonstrates a stronger green emission significantly longer lifetime (254 ms) higher photoluminescence quantum yield (9.5%) compared 4-POEACC. A thorough investigation structural optical properties reveals that shorter chains can enhance performance reduced molecular vibrations more effective exciton recombination. Computational calculations further show smaller energy gap between S1 Tn 4-POMA facilitates intersystem crossing, thereby improving performance. Based on remarkable properties, demonstrated applications information encryption. This work offers novel design strategy could inspire development next-generation materials.

Language: Английский

Citations

0