Materials for 3D-Structuring by Two Photon Absorption

01.02.2005 - 31.01.2009
Research funding project
Structuring by two-photon absorption (TPA) allows the fabrication of complex 3D parts for applications in MEMS/NENS (micro- (nano) electromechanical systems) targeted by ISOTEC with a resolution on the nanometer-scale. In this research project, three tasks regarding materials for TPA will be targeted: Tpaini will deliver new photinitiators tailored for the specific demands of TPA. These photoinititors are based on a new class of triple bond containing initiators which proved to exhibit excellent TPA initiating activity. Appropriate TPA initiators based on radical, cationic, photo-Fries and photograft systems, will greatly increase the write-speed of TPA systems, thus enhancing the productivity of industrial processes relying on TPA. The aim of sub-project Biomat is to fabricate miniature-scaffolds for biomedical applications. The goal is to develop novel biocompatible and biodegradeable photopolymers based on gelatine. These photopolymers serve as basis for fabricating three dimensional scaffolds with a feature resultion from micrometer to the nanometer scale. Optomat focuses on the development of optical waveguides for printed circuit boards. Currently, there is a lack of materials for refractive index patterning which, besides their optical properties, also exhibit certain mechanical properties that allow the fabrication of flexible optical waveguides. For this sub-project, TPA will be used for 3D refractive index patterning, e.g. by a Photo-Fries reaction of photosensitive silicone based polymers. The developed materials will be of great benfit for several research projects of the RPC (Strucmeth, Tpainteg, Sensmat, Sensphys).

People

Project leader

Sub project leader

Project personnel

Institute

Grant funds

  • FWF - Österr. Wissenschaftsfonds (National) Austrian Science Fund (FWF)

Research focus

  • Non-metallic Materials: 50%
  • Materials Characterization: 50%

Keywords

GermanEnglish
ZweiphotonenpolymerisationTwo photon polymerization
Nanomaterialiennanomaterials
Optische Wellenleiteroptical waveguides

External partner

  • Montanuniversität Leoben Department für Chemie der Kunststoffe
  • Institut für Angewandte Synthesechemie

Publications