Deposition of ablation products from UV-laser irradiated polymer surfaces

被引：3

作者：

Arenholz, E ^{[1
]}

Kirchebner, A ^{[1
]}

Klose, S ^{[1
]}

Heitz, J ^{[1
]}

Bäuerle, D ^{[1
]}

机构：

[1] Johannes Kepler Univ, A-4040 Linz, Austria

来源：

ADVANCES IN LASER ABLATION OF MATERIALS | 1998年 / 526卷

关键词：

D O I：

10.1557/PROC-526-385

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent research on W-laser interaction with polymer surfaces is focussing on different types of chemical, topological and morphological modifications [1]. Among the new applications are the improved adhesion of different coatings [2], the permanent enhancement of the surface electrical conductivity [3,4], and improved electroless metal platings [5]. One example of a surface modification induced by UV-laser radiation related to adhesion is the growth of so-called dendritic surface structures [6-9]. It is observed after the irradiation of a polymer surface with UV-laser fluences close to or above the ablation threshold, phi(th). The dendrites start at centers randomly distributed over the irradiated area and grow by branching (bifurcation). The growth velocity can vary drastically with temperature from below 0.01 nm/s to more than 5 nm/s with temperatures of 25 and 75 degrees C, respectively. In this paper we present new results on the growth of dendrites. We have measured the dendrite size as a function of time, laser wavelength (lambda=193, 248, 308 nm), and ambient pressure.

引用

页码：385 / 390

页数：6