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Tetraphenylethylene‐Based Multicomponent Emissive Metallacages as Solid‐State Fluorescent Materials
Author(s) -
Mu Chaoqun,
Zhang Zeyuan,
Hou Yali,
Liu Haifei,
Ma Lingzhi,
Li Xiaopeng,
Ling Sanliang,
He Gang,
Zhang Mingming
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202100463
Subject(s) - tetraphenylethylene , fluorescence , quantum yield , solid state , materials science , phosphor , yield (engineering) , photochemistry , aggregation induced emission , nanotechnology , optoelectronics , chemistry , optics , physics , metallurgy
The construction of solid‐state fluorescent materials with high quantum yield and good processability is of vital importance in the preparation of organic light‐emitting devices. Herein, a series of tetraphenylethylene (TPE)‐based multicomponent emissive metallacages are prepared by the coordination‐driven self‐assembly of tetra‐(4‐pyridylphenyl)ethylene, cis‐Pt(PEt 3 ) 2 (OTf) 2 and tetracarboxylic ligands. These metallacages exhibit good emission both in solution and in the solid state because the coordination bonds and aggregation restrict the molecular motions of TPE synergistically, which suppresses the non‐radiative decay of these metallacages. Impressively, one of the metallacages achieves very high fluorescence quantum yield ( Φ F =88.46 %) in the solid state, which is further used as the coatings of a blue LED bulb to achieve white‐light emission. The study not only provides a general method to the preparation of TPE‐based metallacages but also explores their applications as solid‐state fluorescent materials, which will promote the future design and applications of metallacages as useful emissive devices.