Main Chain and Conjugated Azopolymers

9 Film Architecture- RGs Recorded on Orgmized Films and Gels 

19 AFM views of the SRG structures on an ELBL assembted PDACy PAA-AN film (a) and a spin-coated PAA-AN film (b). 

We can attribute the failure in writing SRGs on CR/PAH films to the stronger tendency of PAH to H-bonding, which acts as a further source of hindrance to photoisomerization. The importance of H-bonding in ELBL 

21 Evolution of the dlffracoon efficiency during the writing of SRGs on CR/PDAC films with various thicknesses. In the inset, the diffraction efficiency is plotted against the film thickness. 

22 A 3D AFM in se of an SRG inscribed on an LB Mm of poly(4 -[[2-mednci7toy oxy)-ethyl thylamino]-2 hlofx -4.nitroazotienzenel (HPDRI3).The writii conditions were laser power = ISO p-polaiized light.The LB fihn had 100 layers of HPDRI3 mixed with cadmium stearate, 

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