TY - JOUR
T1 - Highly photoluminescent two-dimensional imine-based covalent organic frameworks for chemical sensing
AU - Gao, Qiang
AU - Li, Xing
AU - Ning, Guo-Hong
AU - Leng, Kai
AU - Tian, Bingbing
AU - Liu, Cuibo
AU - Tang, Wei
AU - Xu, Hai-Sen
AU - Loh, Kian Ping
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2018
Y1 - 2018
N2 - The strong π-π interactions in the stacking layers of two-dimensional covalent organic frameworks (2D-COFs), together with rotationally labile imine linkages, make most of the solid state imine-linked COFs non-fluorescent due to fluorescence quenching processes. Here, we report the successful synthesis of highly photoluminescent imine-based 2D-COFs by integrating a non-planar building unit with a pyrene-based unit and transforming the COF into spherical, sub-micron particles. High photoluminescence quantum yields (PLQY) were achieved with COF sub-micron particles dispersed in organic solvents. The as-prepared COF sub-micron particles can be used as a chemical sensor for the detection of explosive chemicals, with high sensitivity and selectivity (up to ppm level). © The Royal Society of Chemistry 2018.
AB - The strong π-π interactions in the stacking layers of two-dimensional covalent organic frameworks (2D-COFs), together with rotationally labile imine linkages, make most of the solid state imine-linked COFs non-fluorescent due to fluorescence quenching processes. Here, we report the successful synthesis of highly photoluminescent imine-based 2D-COFs by integrating a non-planar building unit with a pyrene-based unit and transforming the COF into spherical, sub-micron particles. High photoluminescence quantum yields (PLQY) were achieved with COF sub-micron particles dispersed in organic solvents. The as-prepared COF sub-micron particles can be used as a chemical sensor for the detection of explosive chemicals, with high sensitivity and selectivity (up to ppm level). © The Royal Society of Chemistry 2018.
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U2 - 10.1039/c7cc09866a
DO - 10.1039/c7cc09866a
M3 - RGC 21 - Publication in refereed journal
C2 - 29435533
SN - 1359-7345
VL - 54
SP - 2349
EP - 2352
JO - Chemical Communications
JF - Chemical Communications
IS - 19
ER -