From Event: SPIE Organic Photonics + Electronics, 2016
We have established that film morphology and laser induced heating from dye absorption are important parameters in the creation of new photonastic materials. Photonastic is defined as regular, repeatable movement in a pre-programmed direction following exposure to light. This work builds upon the development of photonastic polymers of ruthenium sulfoxide complexes, where the action of bending is ascribed to phototriggered isomerization of a sulfoxide ligand in a ruthenium coordination complex that is covalently attached to polynorbornene. The bending is analyzed in terms of a bilayer cantilever model.
Jeffrey J. Rack, Maksim Y. Livshits, and Jisoo Shin, "Photonastic effects in ruthenium sulfoxide polymers," Proc. SPIE 9939, Light Manipulating Organic Materials and Devices III, 993909 (Presented at SPIE Organic Photonics + Electronics: August 31, 2016; Published: 23 September 2016); https://doi.org/10.1117/12.2237391.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon