Figure 3: Contribution of light intensity.

(a) Representative images of azo-LCN strips subjected to light intensities ranging from 100 to 500 mW cm⁻². (b) Displacement of the strips (15° to −75° TN azo-LCNs) when subjected to 100, 200 and 300 mW cm⁻² of light intensity. The relative displacement of the photomotile azo-LCN strips is recorded with 30 ms time interval for light intensity of 100 mW cm⁻² (c) and 300 mW cm⁻² (e). A histogram of normalized frequency versus displacement depicts the regularity of the motion at 100 mW cm⁻² (d) and 300 mW cm⁻² (f). The azo-LCN samples were 15 μm thick.