Journal
ADVANCED SCIENCE
Volume 4, Issue 12, Pages -Publisher
WILEY
DOI: 10.1002/advs.201700395
Keywords
full-color emission; multicolor nanocomposite; polymer carbon dots; quench-resistant emission; sub-fluorophore
Categories
Funding
- National key research and development program of China [2016YFB0401701]
- National Science Foundation of China (NSFC) [51433003, 51373065, 21504029]
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Polymer carbon dots (PCDs) represent a new class of carbon dots (CDs) possessing sub-fluorophores and unique polymer-like structures. However, like small molecule dyes and traditional CDs, PCDs often suffer from self-quenching effect in solid state, limiting their potential applications. Moreover, it is hard to prepare PCDs that have the same chemical structure, exhibiting full-color emission under one fixed excitation wavelength by only modulating the concentration of the PCDs. Herein, self-quenching-resistant solid-state fluorescent polymer carbon dots (SSFPCDs) are prepared, which exhibit strong red SSF without any other additional solid matrices, while having a large production yield (approximate to 89%) and a considerable quantum yield of 8.50%. When dispersed in water or solid matrices in gradient concentrations, they can exhibit yellow, green, and blue fluorescence, realizing the first SSFPCDs with the same chemical structure emitting in full-color range by changing the ratio of SSFPCDs to the solid matrices.
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