Open AccessFull‐Color Emission Polymer Carbon Dots with Quench‐Resistant Solid‐State Fluorescence
Author(s) -
Shao Jieren,
Zhu Shoujun,
Liu Huiwen,
Song Yubin,
Tao Songyuan,
Yang Bai
Publication year - 2017
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201700395
Subject(s) - fluorescence , polymer , quantum yield , carbon fibers , quenching (fluorescence) , materials science , quantum dot , photochemistry , solid state , molecule , chemical engineering , solid solution , yield (engineering) , nanotechnology , chemistry , organic chemistry , optics , composite number , composite material , physics , engineering , metallurgy
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 (≈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.