Polymers films with indandione derivatives as alternatives to azobenzene polymers for optical patterning

• Published in: Thin solid films Vol. 516; no. 24; pp. 8893 - 8898
• Main Authors: Stiller, B., Saphiannikova, M., Morawetz, K., Ilnytskyi, J., Neher, D., Muzikante, I., Pastors, P., Kampars, V.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 31.10.2008; Elsevier
• Subjects: AFM; Azobenzene; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Diffraction (index) grating; Diffusion; interface formation; Exact sciences and technology; Guest-host films; Indandione; Materials science; Methods of nanofabrication; Nanoscale pattern formation; Optically driven mass transport; Physics; SNOM; Solid surfaces and solid-solid interfaces; Structure and morphology; thickness; Surface relief gratings; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Thin film structure and morphology; Indandione; Surface relief gratings; AFM; Diffraction (index) grating; Guest-host films; Optically driven mass transport; Azobenzene; SNOM; Atomic force microscopy; Patterning; Photochemical reactions; Molecular dynamics method; Theoretical study; Photoinduced effect; Polymer films; Diffraction gratings; Chromophores; Optical polymers; Thin films; Near-field scanning optical microscopy; Diffusion
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/j.tsf.2007.11.106

Surface relief gratings (SRGs) on organic thin films are studied extensively for both scientific interest and in relevance to the applications. Among the chromophores being used the azobenzenes showed the best performance, but the use of alternative photo-sensitive groups provides better general understanding of the phenomena. A thermodynamic theory and molecular dynamics simulations of photoinduced effects are discussed. In this study we use indandione derivatives, known as promising materials for photonics applications, as an alternative to the azobenzenes. We consider their photoreactions when incorporated into a polymer film. One of interesting features is the spectral dependence of the diffraction of indandione containing gratings, which is observed and discussed.