Related Experiment Video
Updated: May 28, 2026

Triplet Fusion Upconversion Nanocapsule Synthesis
Published on: September 7, 2022
UV-vis spectroscopic properties of nC60 produced via extended mixing
Xiaojun Chang1, Peter J Vikesland
1Department of Civil and Environmental Engineering, and Institute for Critical Technology and Applied Science, Virginia Tech, Blacksburg, Virginia, United States.
Abstract:
Colloidally stable C(60) suspensions produced via extended mixing in water (aq/nC(60)) are highly heterogeneous with respect to particle size and morphology. Ultraviolet-visible (UV-vis) absorption spectra of aq/nC(60) are often used as a supplemental tool to dynamic light scattering (DLS), transmission electron microscopy (TEM), and other analytical methods to characterize aq/nC(60). In the present study, the UV-vis spectra provide information about the average particle size and the interactions between C(60) and water. We report that the decrease in relative absorption in the 240-290 nm range is a function of magnetic stirring time, that the average size (Z(ave)) of an aq/nC(60) suspension determines the position of absorbance maximum of its 360 nm band, and that the methods used to prepare and fractionate nC(60) affect the extent of the blue shift in this band that occurs due to a decrease in Z(ave). We also confirm that the broad absorption band in the 400-600 nm region is a result of C(60) aggregation.
More Related Videos
10:42Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
Published on: March 22, 2019
08:54Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
Published on: January 25, 2020
Related Concept Videos
UV–Vis Spectroscopy: Molecular Electronic Transitions
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
UV–Vis Spectrometers
UV–Vis Spectroscopy of Conjugated Systems
One of the factors influencing λmax is the extent of conjugation in the...
UV–Vis Spectrum
The UV–Vis spectrum of a molecule is the plot of its absorbance versus wavelength. The plot is drawn by taking molar absorptivity (ε) or log ε on the y-axis (ordinate)...
UV–Vis Spectroscopy: Woodward–Fieser Rules