Shadowgraphy investigation of laser-induced forward transfer: Front side and back side ablation of the triazene polymer sacrificial layer

被引：41

作者：

Fardel, Romain ^{[1
,2
]}

Nagel, Matthias ^{[1
]}

Nueesch, Frank ^{[1
]}

Lippert, Thomas ^{[2
]}

Wokaun, Alexander ^{[2
]}

机构：

[1] Empa, Swiss Fed Labs Mat Testing & Res, Lab Funct Polymers, CH-8600 Dubendorf, Switzerland

[2] Paul Scherrer Inst, Gen Energy Res Dept, CH-5232 Villigen, Switzerland

来源：

APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 10期

基金：

瑞士国家科学基金会;

关键词：

Laser-induced forward transfer; Triazene polymer; Shadowgraphy imaging; EXCIMER-LASER; THIN-FILMS;

D O I：

10.1016/j.apsusc.2008.07.187

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thin films of a photodecomposible triazene polymer are used as sacrificial layer for the micro-deposition of sensitive materials by laser-induced forward transfer. To understand the ablation process of this sacrificial layer, the ultraviolet laser ablation of triazene films was investigated by time-resolved shadowgraphy. Irradiation from the film side shows a complete decomposition into gaseous fragments, while ablation through the substrate causes ejection of a solid flyer of polymer. The occurence of the flyer depends on the film thickness as well as on the applied fluence, and a compact flyer is obtaind when these two parameters are optimized. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：5430 / 5434

页数：5

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