Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 14, Issue 15, Pages 2573-2578Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201900454
Keywords
acetone sensors; long afterglow phosphorescence; pH sensors; phosphorescent paints; urea derived nano-pebble composite
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Funding
- University Grants Commission [UGC-NFST-2015-17-ST-ASS-2321] Funding Source: Medline
- Science and Engineering Research Board [SERB-DST SB/S1/PC-105/2012] Funding Source: Medline
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Materials having long afterglow are highly sought after for various applications such as light-emitting diodes, security signs and bioimaging. Herein, we report a simple, low-cost synthesis of a purely organic room-temperature phosphorescent nanomaterial with a pebble-like structure by heating urea, a biocompatible and easily available precursor, at 200 degrees C with a high phosphorescence lifetime of 1.0365 s and a visible afterglow for up to 10 s. This urea derived phosphorescent nanocomposite (UPNC) can be mixed with commercially available acrylic paint base and common gum, which can be readily used as a phosphorescent pigment.
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