Revealing Crystallization‐Induced Blue‐Shift Emission of a Di‐Boron Complex by Enhanced Photoluminescence and Electrochemiluminescence

Elucidating the effects of crystallization‐induced blue‐shift emission of a newly synthesized di‐boron complex (DBC) by enhanced photoluminescence (PL) and electrochemiluminescence (ECL) in the annihilation pathway was realized for the first time. The 57 nm blue‐shift and great enhancement in the cr...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie International Edition 2020-09, Vol.59 (40), p.17461-17466
Main Authors: Wong, Jonathan M., Zhang, Ruizhong, Xie, Peidong, Yang, Liuqing, Zhang, Minlin, Zhou, Ruixue, Wang, Ruiyao, Shen, Yue, Yang, Bing, Wang, Hong‐Bo, Ding, Zhifeng
Format: Article
Language:English
Subjects:
Boron
Crystal structure
Crystallinity
Crystallization
crystallization-induced emission
Electrochemiluminescence
Emission analysis
emission enhancement
Interfaces
Light emission
Luminescence
Photoluminescence
Photons
solid-state emitters
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Elucidating the effects of crystallization‐induced blue‐shift emission of a newly synthesized di‐boron complex (DBC) by enhanced photoluminescence (PL) and electrochemiluminescence (ECL) in the annihilation pathway was realized for the first time. The 57 nm blue‐shift and great enhancement in the crystalline lattice relative to the DBC solution were attributed to the restriction of intramolecular rotation (RIR) and confirmed by PL imaging, X‐ray diffraction, as well as DFT calculations. It was discovered that ECL at crystalline film/solution interfaces can be further enhanced by means of both co‐reactant route and RIR. The RIR contributions with co‐reactant increased ECL up to 5 times more. Very interestingly, the co‐reactant system was found to give off a red‐shifted light emission. Mechanistic studies reveal that a difference between location of the ECL in the co‐reactant route and that in the annihilation pathway leads to an alternative emission wavelength. Crystallization‐induced emission of a di‐boron complex luminophore, which gives blue‐shifted and enhanced photoluminescence and electrochemiluminescence (ECL) in the annihilation pathway, is reported. ECL at crystalline film/solution interfaces was further enhanced by means of both co‐reactant route and restriction of intramolecular rotation.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202007588