Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The fabrication of room-temperature organic phosphorescence and afterglow materials, as well as the transformation of their photophysical properties, has emerged as an important topic in the research field of luminescent materials. Here, we report the establishment of energy landscapes in dopant-matrix organic afterglow systems where the aggregation states of luminescent dopants can be controlled by doping concentrations in the matrices and the methods of preparing the materials. Through manipulation by thermodynamic and kinetic control, dopant-matrix afterglow materials with different aggregation states and diverse afterglow properties can be obtained. The conversion from metastable aggregation state to thermodynamic stable aggregation state of the dopant-matrix afterglow materials to leads to the emergence of intriguing afterglow transformation behavior triggered by thermal and solvent annealing. The thermodynamically unfavorable reversible afterglow transformation process can also be achieved by coupling the dopant-matrix afterglow system to mechanical forces.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/chem.202103020 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mechanoluminescent Aluminum Nitride Crystal for Super-Sensitive Optical Manometry, Thermometry and Force Sensing.
Adv Mater
September 2025
Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland.
AlN is a core material widely used as a substrate and heat sink in various electronic and optoelectronic devices. Introducing luminescent properties into intrinsic AIN opens new opportunities for next-generation intelligent sensors, self-powered displays, and wearable electronics. In this study, the first evidence is presented of AlN crystals exhibiting satisfactory mechanoluminescence (ML), photoluminescence (PL), and afterglow performance, demonstrating their potential as novel multifunctional optical sensors.
View Article and Find Full Text PDFRegioselective construction of two isomeric BN-fused aromatic frameworks enabling the synthesis of ultralong room-temperature phosphorescence materials.
Chem Sci
August 2025
College of Chemistry and Chemical Engineering, Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University Jiujiang 332005 China
BN-fused aromatic compounds have garnered significant attention due to their unique electronic structures and exceptional photophysical properties, positioning them as highly promising candidates for applications in organic optoelectronics. However, the regioselective synthesis of BN isomers remains a formidable challenge, primarily stemming from the difficulty in precisely controlling reaction sites, limiting structural diversity and property tunability. Herein, we propose a regioselective synthetic strategy that employs 2,1-BN-naphthalene derivatives, wherein selective activation of N-H and C-H bonds is achieved in conjunction with -halogenated phenylboronic acids.
View Article and Find Full Text PDFSn-Mediated Trap Engineering in Cr-Activated Titanate Nanophosphors Enables Self-Sustained Multimodal Imaging and Combinatorial Oncotherapy.
Adv Mater
September 2025
National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of National Development and Reform Commission, Department of Materials Science, School of Materials and Energy, Lanzhou University, No. 222, South Tianshui Road, Lanzhou, Gansu, 730000, P. R. China.
Multimodal imaging provides comprehensive and precise tools that significantly increase the efficiency and accuracy in clinical decision-making. The integration of superior multimodal imaging capabilities with stimuli-responsive drug release functionalities within a single nanoplatform holds crucial promise for both scientific exploration and clinical translation but remains a formidable challenge in advancing precision medicine. The unique integration of near-infrared emission (λ = 760 nm), multiwavelength-rechargeable afterglow, photostimulated luminescence under 980 nm excitation, and Gd⁺-specific ferromagnetism is highlighted in NaGdTiO:Cr,Sn phosphor.
View Article and Find Full Text PDFAchieving Efficient Lifetime-Tunable Room-temperature Phosphorescent Cellulose with Excitation Wavelength- and Time-Dependence.
Small
September 2025
Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China.
The precise modulation of the lifetime and the responsive properties of room-temperature phosphorescence (RTP) is essential for realizing its multifunctional applications. Herein, a facile strategy is presented to achieve a series of cellulose benzoate esters (CBE-X, X = H/CH/OH/NH) with lifetime-tunable RTP through substituent engineering. Enhancing the electron-donating ability of CBE-X effectively modulates the HOMO-LUMO gap, exciton energy, spin-orbit coupling, and interaction between cellulose chains, thereby enabling control over the RTP lifetime.
View Article and Find Full Text PDFOrganic Afterglow Emitters for Visual Observation of Hydrogel Formation in Biomedical Systems.
Adv Mater
August 2025
State Key Laboratory of Organometallic Chemistry and Shanghai Hongkong Joint Laboratory in Chemical Synthesis, Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Ningbo Zhongke Creation Center of New Materials, Shanghai Institute of Organic Chemistry, Universit
Biomedical hydrogels are integral to a wide range of applications, with their efficacy critically hinging on precise delivery and successful gelation at targeted sites. Nevertheless, existing technologies that provide reliable, visual confirmation of gelation and accurate localization remain very limited. Here organic afterglow emitters are reported that are designed with small phosphorescence rate (k ≈ 0.
View Article and Find Full Text PDF