Fig. 11From: Photoinduced supramolecular chirality and spontaneous surface patterning in high-performance azo materialsAFM and FFT images of samples a) 1, b), c) 2, and d), e) 3 after irradiating by EPL from the layer side. Various surface structures were obtained after irradiation by EPL with different ε. Irradiation with ε=15∘ (as seen in b) and d)) leads to anisotropically oriented structures, and irradiation with ε=22.5∘ in a), c), and e) leads to rather randomly distributed bump patterns. Here, the FFT images show higher order of surface structures. The AFM images show the condition after an exposure time of 70 minBack to article page