Jpn. J. Appl. Phys. 46 (2007) pp. 449-454 |Previous Article| |Next Article| |Table of Contents|
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Laser Deposition of Polymer Micro- and Nanoassembly from Solution Using Focused Near-Infrared Laser Beam
Yu Nabetani,
Hiroyuki Yoshikawa,
Andrew C. Grimsdale1,
Klaus Müllen2, and
Hiroshi Masuhara
Department of Applied Physics, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
1Bio21 Institute, University of Melbourne, 30 Flemington Road, 3010 Victoria, Australia
2Max-Planck-Institute for Polymer Research, Ackermannweg 10, Postfash 3148, D-55021, Mainz, Germany
(Received April 10, 2006; accepted September 30, 2006; published online January 10, 2007)
We have demonstrated the laser deposition of polymer micro- and nanoassemblies from a solution onto a glass substrate. The size and shape of the deposited dot-like assembly can be controlled by the laser power (P) and the concentration of the solution (C). For an example, a nanoassembly of a π-conjugated polymer, whose width and height are 280 and 23 nm, respectively, is deposited at the conditions of C=1.0×10-5 mg/ml and P=700 mW. This laser deposition can be attributed to the optical trapping and the surface deformation of the solution layer using a focused laser beam. It is also demonstrated that the molecular orientation in the assembly can be aligned in the direction of the laser polarization. The present laser deposition is applicable to the micropatterning of various polymers dissolved in an organic solvent.
URL:
http://jjap.jsap.jp/link?JJAP/46/449/
DOI: 10.1143/JJAP.46.449
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