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Scanning electron microscopy images of the organic nanowire sample (a) without and (b) with being ultrasonically dispersed.
(Color online) Fourier-transform infrared spectrum of (a) -hydroxybenzoic acid and (b) the organic nanowire sample.
(Color online) Absorption spectrum of organic nanowires at room temperature. Inset (a) shows photoluminescence spectrum and inset (b) shows the photoluminescence excitation spectrum .
(Color online) Temperature-dependent photoluminescence spectra of the sample. For clarity, each curve has been normalized and shifted (according to the original order of relative intensities).
(Color online) Time-resolved photoluminescence decay curve for the organic nanowire sample (monitored at around of the emission peak, ), which is fitted by biexponential decay and the decay time components are 6.6 and , respectively.
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