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Patterned Polymer Multilayer Light-Emitting Device Fabrication using Laser Induced Forward Transfer

English title Patterned Polymer Multilayer Light-Emitting Device Fabrication using Laser Induced Forward Transfer
Applicant Nüesch Frank
Number 107666
Funding scheme Project funding (Div. I-III)
Research institution Departement Moderne Materialien, ihre Oberfläche und Grenzflächen EMPA
Institution of higher education Swiss Federal Laboratories for Materials Science and Technology - EMPA
Main discipline Condensed Matter Physics
Start/End 01.09.2005 - 31.08.2007
Approved amount 109'840.00
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Keywords (14)

triazene polymers; laser ablation transfer; photodecomposition; time resolved shadowgraphy; organic thin films; spin coating; triazene polymer; laser ablation; dynamic release layer; polymer; light-emitting diode; thin films; organic optoelectronic devices; photochemistry

Lay Summary (English)

Lay summary
This project is aimed at developing a novel laser-based transfer methodfor the fabrication of layered polymer architectures. The method utilizesa UV-transparent donor substrate that is coated with a sacrificial dynamicrelease layer (DRL) made from photodegradable triazene polymers and anoverlaying film of the transfer material. Upon UV-laser irradiationthrough the donor substrate, the DRL decomposes selectively into gaseousproducts, and the transfer layer is propelled onto the receiver substrate.By judicious chemical tuning of the DRL and by adjusting the laserparameters, the transfer film will be deposited on the receiver substratewithout being damaged by laser irradiation or thermal load. This directtransfer method would allow a dry deposition of polymer films with welldefined lateral geometries. Consequently, it would allow an elegantsequential processing method for multi-layer device fabrication, includingthe deposition of metal electrodes. In this project, we intend to tune DRLmaterials for this purpose and to elaborate the laser transfer method forthe fabrication of opto-electronic devices such as organic light-emittingdiodes.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants


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Associated projects

Number Title Start Funding scheme
119925 Fabrication of patterned organic multilayer devices using dynamic release layer assisted Laser Induced Forward Transfer 01.04.2008 Project funding (Div. I-III)