| Literature DB >> 24142303 |
Qi Xue1, He Huang, Liang Wang, Zhiwen Chen, Minghong Wu, Zhen Li, Dengyu Pan.
Abstract
We report a novel procedure involving polyethylenimine-assisted hydrothermal cutting and subsequent ultrafiltration for fabricating nearly monodisperse graphene quantum dots with a uniform lateral size and confined layer number. The isolated monolayer quantum dots exhibit a sharp band-edge absorption feature and strong photoluminescence (quantum yield of 21%) independent of excitation wavelength and pH. Their preliminary application in bioimaging has been demonstrated.Entities:
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Year: 2013 PMID: 24142303 DOI: 10.1039/c3nr03623e
Source DB: PubMed Journal: Nanoscale ISSN: 2040-3364 Impact factor: 7.790