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Assessment and formation mechanism of laser-induced periodic surface structures on polymer spin-coated films in real and reciprocal space.

Rebollar, E, Pérez, S, Hernández, JJ, Martín-Fabiani, I, Rueda, DR, Ezquerra, TA and Castillejo, M (2011) Assessment and formation mechanism of laser-induced periodic surface structures on polymer spin-coated films in real and reciprocal space. Langmuir, 27 (9). pp. 5596-5606.

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Abstract

In this work we evaluate the potential of grazing incidence X-ray scattering techniques in the investigation of laser-induced periodic surface structures (LIPSSs) in a series of strongly absorbing model spin-coated polymer films which are amorphous, such as poly(ethylene terephthalate), poly(trimethylene terephthalate), and poly(carbonate bisphenol A), and in a weaker absorbing polymer, such as semicrystalline poly(vinylidene fluoride), over a narrow range of fluences. Irradiation was performed with pulses of 6 ns at 266 nm, and LIPSSs with period lengths similar to the laser wavelength and parallel to the laser polarization direction are formed by devitrification of the film surface at temperatures above the characteristic glass transition temperature of the polymers. No crystallization of the surface is induced by laser irradiation, and crystallinity of the material prevents LIPSS formation. The structural information obtained by both atomic force microscopy and grazing incidence small-angle X-ray scattering (GISAXS) correlates satisfactorily. Comparison of experimental and simulated GISAXS patterns suggests that LIPSSs can be well described considering a quasi-one-dimensional paracrystalline lattice and that irradiation parameters have an influence on the order of such a lattice.

Item Type: Article
Authors :
NameEmailORCID
Rebollar, EUNSPECIFIEDUNSPECIFIED
Pérez, SUNSPECIFIEDUNSPECIFIED
Hernández, JJUNSPECIFIEDUNSPECIFIED
Martín-Fabiani, IUNSPECIFIEDUNSPECIFIED
Rueda, DRUNSPECIFIEDUNSPECIFIED
Ezquerra, TAUNSPECIFIEDUNSPECIFIED
Castillejo, MUNSPECIFIEDUNSPECIFIED
Date : 3 May 2011
Identification Number : https://doi.org/10.1021/la200451c
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:19
Last Modified : 17 May 2017 13:19
URI: http://epubs.surrey.ac.uk/id/eprint/838748

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