Enhanced surface coverage and conductivity of Cu complex ink-coated films by laser sintering

Jeonghyeon Lee, Byoungyoon Lee, Sooncheol Jeong, Yoonhyun Kim, Myeongkyu Lee

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We here show that highly conductive copper films are obtainable from Cu complex ink by laser sintering. The synthesized Cu formate ink was spin-coated onto polyimide substrate and the coated films were scanned by an ultraviolet laser beam at 355 nm. During the sintering process, N2 gas was blown into the irradiated area to prevent oxidation. Unlike the typical thermal process, laser sintering resulted in tightly packed, dense structures. This made it possible to produce highly conducting thin films with uniform thickness. A minimum resistivity of 1.92 × 10- 5 Ω cm was obtained.

Original languageEnglish
Pages (from-to)264-268
Number of pages5
JournalThin Solid Films
Volume564
DOIs
Publication statusPublished - 2014 Aug 1

Fingerprint

inks
Ink
sintering
formic acid
Sintering
conductivity
Lasers
lasers
Ultraviolet lasers
formates
ultraviolet lasers
polyimides
Polyimides
Laser beams
Copper
Gases
laser beams
conduction
Thin films
copper

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Lee, Jeonghyeon ; Lee, Byoungyoon ; Jeong, Sooncheol ; Kim, Yoonhyun ; Lee, Myeongkyu. / Enhanced surface coverage and conductivity of Cu complex ink-coated films by laser sintering. In: Thin Solid Films. 2014 ; Vol. 564. pp. 264-268.
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Enhanced surface coverage and conductivity of Cu complex ink-coated films by laser sintering. / Lee, Jeonghyeon; Lee, Byoungyoon; Jeong, Sooncheol; Kim, Yoonhyun; Lee, Myeongkyu.

In: Thin Solid Films, Vol. 564, 01.08.2014, p. 264-268.

Research output: Contribution to journalArticle

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