|
|||||
|
|
Laser fabrication of periodic microstructures from silver nanoparticles in polymer films |
|
| Authors: | V N Bagratashvili N V Minaev A A Rybaltovsky A O Rybaltovsky S I Tsypina V Ya Panchenko and Yu S Zavorotny |
| Institution: | (1) Laboratory of Polymer Chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, 00014 Helsinki, Finland;(2) NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology (TKK), P.O. Box 5100, 02150 Espoo, Finland;(3) Department of Ionic Solids, Materials Science Institute of Madrid (ICMM), Spanish National Research Council (CSIC), Cantoblanco, Madrid, Spain;(4) Laboratory of Physical Chemistry and Electrochemistry, Helsinki University of Technology, P.O. Box 6100, 02015 Espoo, Finland; |
| Abstract: | The fabrication of photoand thermostable periodic structures from silver nanoparticles in polymer plates (cross-linked oligourethanemethacrylate impregnated with silver precursors Ag(hfac) and Ag(fod) dissolved in the supercritical carbon dioxide) is studied. The process is based on the local (depending on the irradiated spot size) photochemical decomposition of the silver precursors in the polymer matrix that initiates the atomic aggregation and creation of silver nanoparticles with the plasmon resonance in absorption in the spectral range 420–430 nm. The third-harmonic radiation of a Nd:YAG laser (355 nm) and the Kr+-laser (521 nm) radiation are employed for the recording of periodic structures with submillimeter and micron resolutions. The photosensitivity of the polymer matrices impregnated with the silver precursors to the UV and visible radiation is discussed. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |