期刊
ACS APPLIED NANO MATERIALS
卷 1, 期 4, 页码 1623-1630出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.8b00114
关键词
microwave; ultrarapid; graphene quantum dots; fluorescent; imaging; white LEDs
资金
- National Natural Science Foundation of China [21671129, 21571124, 21671131]
- Shanghai Sailing Program [16YF1404400]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT17R71]
Here we introduce a simple, superfast, and scalable strategy that obtains graphene quantum dots (GQDs) within 3 min under microwave irradiation (MA-GQDs). The MA-GQDs exhibit excellent fluorescence quantum yields up to 35% in the optimum reaction condition. The MA-GQDs with single-crystalline and few-layer structure can reach the visible region with the longest absorption wavelength at 700 nm. Moreover, these ultrabright-fluorescence and stable MAGQDs as a phosphor and fluorescence probe could be efficiently applied in white light-emitting diodes and cell imaging fields. The developed pathway to GQDs can provide unambiguous and remarkable insights into the design of high-fluorescence and few-defect GQDs, and expedite the applications of GQDs.
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