Preparation of periodic surface structures on doped poly(methyl metacrylate) films by irradiation with KrF excimer laser

Yevgeniya Kalachyova, Oleksiy Lyutakov, Petr Slepicka, Roman Elashnikov, Vaclav Svorcik

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In this work, we describe laser modification of poly(methyl methacrylate) films doped with Fast Red ITR, followed by dopant exclusion from the bulk polymer. By this procedure, the polymer can be modified under extremely mild conditions. Creation of surface ordered structure was observed already after application of 15 pulses and 12 mJ cm−2 fluence. Formation of grating begins in the hottest places and tends to form concentric semi-circles around them. The mechanism of surface ordered structure formation is attributed to polymer ablation, which is more pronounced in the place of higher light intensity. The smoothness of the underlying substrate plays a key role in the quality of surface ordered structure. Most regular grating structures were obtained on polymer films deposited on atomically ‘flat’ Si substrates. After laser patterning, the dopant was removed from the polymer by soaking the film in methanol.

Original languageEnglish
JournalNanoscale Research Letters
Volume9
Issue number1
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Fingerprint

Excimer lasers
Surface structure
excimer lasers
Polymers
Irradiation
preparation
irradiation
polymers
Doping (additives)
High intensity light
Lasers
gratings
Polymethyl Methacrylate
Substrates
Ablation
Polymethyl methacrylates
Polymer films
soaking
Methanol
exclusion

Keywords

  • Grating
  • Laser
  • Modification
  • Polymer
  • Surface

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Preparation of periodic surface structures on doped poly(methyl metacrylate) films by irradiation with KrF excimer laser. / Kalachyova, Yevgeniya; Lyutakov, Oleksiy; Slepicka, Petr; Elashnikov, Roman; Svorcik, Vaclav.

In: Nanoscale Research Letters, Vol. 9, No. 1, 01.01.2014.

Research output: Contribution to journalArticle

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