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Updated: Mar 14, 2026
Synthesis and Functionalization of Nitrogen-doped Carbon Nanotube Cups with Gold Nanoparticles as Cork Stoppers
Published on: May 13, 2013
Nitrogen-doped carbon dots with excitation-independent long-wavelength emission produced by a room-temperature
Chenhui Yang1, Shoujun Zhu2, Zhenglin Li1
1State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China. miaoyu_che@hit.edu.cn and Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150001, China. sunye@hit.edu.cn.
Abstract:
Nitrogen-doped carbon dots (CDs) have been produced by a new facile "bottom-up" synthesis, using the room-temperature reaction between acetonitrile and sodium-naphthalene. The obtained hydrophobic CDs are monodisperse (∼2.6 nm) and present an excitation-independent emission at ∼588 nm with a small full width at half-maximum (FWHM) of ∼52 nm. The CDs can be simply modified to be hydrosoluble and have been demonstrated to be an efficient red-emission agent for both in vivo and in vitro bioimaging.
