Self-polymerization of nano-fibres and nano-membranes induced by two-photon absorption

• DOI: 10.3952/lithjphys.50115
• Publication Date: 2010-04-10T18:22:28Z
• Authors: M. Malinauskas; G. Bičkauskaitė; M. Rutkauskas; D. Paipulas; V. Purlys; R. Gadonas
• Keywords: 02 engineering and technology; 0210 nano-technology

Laser Two-Photon Polymerization (LTPP) is a technique enabling formation of 3D nanostructures in photosensitive resins with sub-wavelength resolution and unmatched flexibility.However, controllable fabrication sub-100 nm features by this still challenge.Self-polymerization, also known as non-local polymerization, considered to be promising ultra-high structure formation.Recent observation fragile self-polymerized fibres diameter within tens nanometres (nano-fibres) encourages the use self-polymerization produce nanometre scale structures other than define conditions for fabrication."X"-shaped polymerized supports are used rigid suspended different nature (shape dimensionality) in-between walls "X".By laser writing lines parallel substrate perpendicular long symmetry axis "X" under conditions, self-formation periodic nano-fibres (diameter <100 nm) nano-membranes induced acrylate photopolymer AKRE37.Depending on introduced exposure dose, spatial density threshold behaviour non-structure, nano-fibre, nano-membrane, written deduced.Preliminary model including intensity, concentration radicals, collapse force, distance between variables having effect final structure's geometry proposed explain self-polymerization.