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Proceedings Paper

Study of optimal laser beam profile for laser induced thermal printing of organic film
Author(s): Jonghoon Yi; Kangin Lee; Kwangwon Lee; Lee Soon Park; Jin Hyuk Kwon
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Paper Abstract

Thin organic film is coated on the laser absorbing layer. The organic material coated heat absorbing layer is closely contacted with the substrate. When the laser is incident on the heat absorbing layer, the absorbing layer is expanded and the organic film is transferred to the substrate. When the laser has Gaussian spatial profile, the profile of printed organic material becomes non-uniform. We tried several laser beam profile shaping methods to get a clean and sharp printing. The dependences of eliminated organic material profile from donor plate on the laser power, beam shaping method, and the layer thickness are also investigated.

Paper Details

Date Published: 27 August 2009
PDF: 8 pages
Proc. SPIE 7415, Organic Light Emitting Materials and Devices XIII, 74151D (27 August 2009); doi: 10.1117/12.824869
Show Author Affiliations
Jonghoon Yi, Yeungnam Univ. (Korea, Republic of)
Kangin Lee, Yeungnam Univ. (Korea, Republic of)
Kwangwon Lee, Yeungnam Univ. (Korea, Republic of)
Lee Soon Park, Kyungpook National Univ. (Korea, Republic of)
Jin Hyuk Kwon, Yeungnam Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7415:
Organic Light Emitting Materials and Devices XIII
Franky So; Chihaya Adachi, Editor(s)

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