TY - JOUR
T1 - Engineering Luminescence Lifetimes of Cu(I) Complexes for Optical Multiplexing
AU - Ma, Yun
AU - Dong, Yafang
AU - She, Pengfei
AU - Liu, Shujuan
AU - Xie, Mingjuan
AU - Yu, Yaxin
AU - Li, Yonghua
AU - Zhao, Qiang
AU - Huang, Wei
N1 - Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/12/3
Y1 - 2018/12/3
N2 - Luminescent materials with tunable emission lifetimes have gained broad research interest, because they are ideal candidates for optical multiplexing applications, such as biolabeling, security printing, and data storage. To date, a few studies have reported that the efficient regulation of emission decay times can be achieved for lanthanide nanomaterials. However, it remains challenging to engineer the luminescence lifetimes of small molecules due to the lack of effective methods. Herein, a new strategy is put forward to control the emission lifetimes of ionic Cu(I) complexes by changing the electrostatic interactions between cationic complexes and counter anions. The Cu(I) complexes prepared with different counterions (ClO4 −, PF6 −, NO3 −, and BF4 −) exhibit distinct luminescence lifetimes from 12.9 to 22.3 µs in the solid state. Importantly, by simply doping different contents of CuBF4 into polymethyl methacrylate, the emission lifetimes could be varied in a linear manner in the range from 11.4 ± 0.3 to 20.7 ± 0.2 µs. Based on the tunable emission lifetimes, optical multiplexing is achieved by using time-resolved luminescence imaging technique.
AB - Luminescent materials with tunable emission lifetimes have gained broad research interest, because they are ideal candidates for optical multiplexing applications, such as biolabeling, security printing, and data storage. To date, a few studies have reported that the efficient regulation of emission decay times can be achieved for lanthanide nanomaterials. However, it remains challenging to engineer the luminescence lifetimes of small molecules due to the lack of effective methods. Herein, a new strategy is put forward to control the emission lifetimes of ionic Cu(I) complexes by changing the electrostatic interactions between cationic complexes and counter anions. The Cu(I) complexes prepared with different counterions (ClO4 −, PF6 −, NO3 −, and BF4 −) exhibit distinct luminescence lifetimes from 12.9 to 22.3 µs in the solid state. Importantly, by simply doping different contents of CuBF4 into polymethyl methacrylate, the emission lifetimes could be varied in a linear manner in the range from 11.4 ± 0.3 to 20.7 ± 0.2 µs. Based on the tunable emission lifetimes, optical multiplexing is achieved by using time-resolved luminescence imaging technique.
KW - data storage
KW - electrostatic interaction
KW - luminescence lifetime
KW - optical multiplexing
KW - security protection
UR - http://www.scopus.com/inward/record.url?scp=85054707625&partnerID=8YFLogxK
U2 - 10.1002/adom.201801065
DO - 10.1002/adom.201801065
M3 - 文章
AN - SCOPUS:85054707625
SN - 2195-1071
VL - 6
JO - Advanced Optical Materials
JF - Advanced Optical Materials
IS - 23
M1 - 1801065
ER -