Figure 2.

M-SWCNT photoluminescence (PL) spectra, at 10-mW excitation power and 659-nm excitation wavelength laser. With temperature ranging from 77 to 300 K. Vertical lines are guides for the eyes.

Gu et al. Nanoscale Research Letters 2013 8:300   doi:10.1186/1556-276X-8-300
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