Laser deposition of polymer micro- and nanoassembly from solution using focused near-infrared laser beam

Yu Nabetani*, Hiroyuki Yoshikawa, Andrew C. Grimsdale, Klaus Müllen, Hiroshi Masuhara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

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 × 10-5mg/ml and P = 700mW. 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.

Original languageEnglish
Pages (from-to)449-454
Number of pages6
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume46
Issue number1
DOIs
StatePublished - 10 Jan 2007

Keywords

  • Laser deposition
  • Laser microfabrication
  • Optical trapping
  • Thermocapillary
  • π-conjugated polymer

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