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- W2143173821 abstract "The fluorescent imidazolium salt (1,3-bis(9-anthracenylmethyl)imidazolium chloride, [bamim]Cl) has been grafted onto the surfaces of single-walled carbon nanotubes (SWNTs) using an ion exchange strategy based on metathesis of the K+ ion in CO2K derivatized SWNTs with [bamim]+. The resulting SWNT-[bamim] complex has been characterized with high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), elemental mapping, and elemental linear profiles analysis. A blue light emission can be observed at 392, 414 and 438 nm for SWNT-[bamim] upon being excited at 254 nm. The quantum yield (QY) of the SWNT-[bamim] complex (0.40) is much higher than that of SWNT/[bamim]Cl (0.02), used as a control, and prepared using a π-π stacking method, indicating that ion exchange is a far more effective strategy for retaining a high QY. Additionally, UV-Vis-NIR and Raman spectroscopy show that the SWNT-[bamim] complex can maintain the one-dimensional electronic states of SWNTs. Other imidazolium salts have also been successfully grafted onto SWNTs via the same strategy, indicating that the ion exchange process can serve as a universal strategy for the functionalization of SWNTs." @default.
- W2143173821 created "2016-06-24" @default.
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- W2143173821 creator A5055671604 @default.
- W2143173821 creator A5088729140 @default.
- W2143173821 date "2008-03-25" @default.
- W2143173821 modified "2023-09-30" @default.
- W2143173821 title "A Facile Strategy for Preparation of Fluorescent SWNT Complexes with High Quantum Yields Based on Ion Exchange" @default.
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- W2143173821 doi "https://doi.org/10.1002/adfm.200701144" @default.
- W2143173821 hasPublicationYear "2008" @default.
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