Open AccessEmergent Photostability Synchronization in Coassembled Array Members for the Steady Multiple Discrimination of Explosives
Author(s) -
Cheng Chuanqin,
Cui Linfeng,
Xiong Wei,
Gong Yanjun,
Ji Hongwei,
Song Wenjing,
Zhao Jincai,
Che Yanke
Publication year - 2022
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202102739
Subject(s) - förster resonance energy transfer , explosive material , fluorescence , carbazole , synchronization (alternating current) , materials science , acceptor , optoelectronics , energy (signal processing) , energy transfer , range (aeronautics) , computer science , photochemistry , optics , chemistry , physics , telecommunications , molecular physics , channel (broadcasting) , organic chemistry , quantum mechanics , condensed matter physics , composite material
The design of sensor array members with synchronous fluorescence and photostability is crucial to the reliable performance of sensor arrays in multiple detections and their service life. Herein, a strategy is reported for achieving synchronous fluorescence and photostability on two coassemblies fabricated from carbazole‐based energy donor hosts and a photostable energy acceptor. When a small number of the same energy acceptors are embedded into two carbazole‐based energy donor hosts, the excitation energy of the donors can be efficiently harvested by the acceptors through long‐range exciton migration and Förster resonance energy transfer (FRET) to achieve synchronous fluorescence and photostability in both coassemblies. More intriguingly, the synchronous photostability substantially improves the multiple discrimination capacity (e.g., 10 times more discriminations of TNT in two coassemblies have been achieved compared to the sensor array comprising two individual donor assemblies) and the working lifetime of the sensor array. The concept of optical synchronization (i.e., emission and photostability) of sensor array members can be extended to other sensor arrays for the steady multiple detection of certain hazardous chemicals.