Abstract
Various functional precursors based on polythiophene derivatives are designed to prepare carbon dots (C-dots) with tunable emissions ranging from blue to near-infrared (NIR) at a single excitation wavelength (400 nm). The as-prepared C-dots demonstrate homogeneous size, superior optical properties, excellent water solubility, and low cytotoxicity. Thus, the C-dots are candidates for bio-imaging. A tunable photoluminescence mechanism is proposed to result from variations in the surface state and N content.
Original language | English |
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Pages (from-to) | 729-734 |
Number of pages | 6 |
Journal | Nanoscale |
Volume | 8 |
Issue number | 2 |
DOIs | |
Publication status | Published - 14 Jan 2016 |
Externally published | Yes |