Journal
RSC ADVANCES
Volume 5, Issue 2, Pages 1500-1506Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra09789k
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Funding
- National Basic Research 973 Program [2013CB733700, 2013CB834701]
- NSFC/China [2116110444, 21172073, 91233207]
- Science Fund for Creative Research Groups [21421004]
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Two new donor-acceptor-donor-type two-photon absorption (2PA) dyes (TPEPT1 and TPEPT2) have been synthesized by Suzuki coupling reaction with tetraphenylethene (TPE) as a donor and [1,2,5]thiadiazolo[3,4-c]pyridine (PT) as an acceptor. The 2PA cross sections (sigma) values of these dyes measured by the open aperture Z-scan technique are up to 6030 and 2360 GM, respectively. Both of them exhibit good aggregation-induced emission (AIE) properties with fluorescent quantum efficiencies of 7.25% and 5.53% in the red channel. Finally, TPEPT1 with higher brightness was used to perform a cell-imaging proposal.
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