| 摘要 |
PROBLEM TO BE SOLVED: To provide effective tools for performing evaluation of dispersion solvents or dispersion methods for dispersing carbon nanotube. SOLUTION: An excitation light scanning of the sample (dispersion fluid in which carbon nanotube is dispersed) is performed over the whole range of wavelength to measure the spectrum of photoluminescence, and a chirality distribution is created and displayed based on the its results (S1-S3). After one or more chiralities on the distribution are selected (S4), light-intercepting intensity is determined, at every predetermined time period, for a wavelength pair of the excitation light wavelength and the fluorescence wavelength that are corresponding to the chirality, and the intensity is plotted on a graph (S6-S17). Since carbon nanotube does not emit photoluminescence in its aggregated state, it is possible to recognize the progress of aggregation from reduction in the intensity over the lapse of time. COPYRIGHT: (C)2009,JPO&INPIT
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