Ultrafast laser ablation of indium tin oxide thin films for organic light-emitting diode application

Mira Park, Byong Hyok Chon, Hyun Sun Kim, Sae Chae Jeoung, Dongho Kim, Jeoung Ik Lee, Hye Yong Chu, Hyeong Rae Kim

Research output: Contribution to journalArticle

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Abstract

Ultrafast laser ablation of ITO thin film coated on the glass has been investigated as a function of laser fluence as well as the number of laser pulses. The ablation threshold of ITO thin film was found to be 0.07 J/cm 2 that is much lower than that of glass substrate (about 1.2-1.6 J/cm2), which leads to a selective ablation of ITO film without damage on glass substrate. The changes in the electrical resistance and morphology of ablated trench of ITO electrode were found to be strongly dependent on the processing conditions. We present the performance of organic light-emitting diodes (OLED) fabricated with ITO electrode patterned by ultrafast laser ablation.

Original languageEnglish
Pages (from-to)138-146
Number of pages9
JournalOptics and Lasers in Engineering
Volume44
Issue number2
DOIs
Publication statusPublished - 2006 Feb 1

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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