Figure 4.
Comparison of photoluminescence brightness. E11 photoluminescence from f-SWCNTs (black solid circles), E11− photoluminescence from f-SWCNTs (red solid circle) and E11 photoluminescence from unf-SWCNTs (black open diamond) as a function of 845 nm or 985 nm laser intensity. The data are well fitted by saturation curves (solid lines) with saturation intensities of 0.24 kW/cm2 (red), 1.9 kW/cm2 (black) and 2.0 kW/cm2 (dotted black).