Facile fabrication of flexible metal grid transparent electrode using inkjet-printed dot array as sacrificial layer

Chaewon Kim, Kunsik An, Mingu Kang, Phillip Won, Jung Jae Park, Kwan Hyun Cho, Seung Hwan Ko, Byeong Kwon Ju, Kyung Tae Kang

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this study, we introduce a flexible metal grid transparent electrode fabricated using a lift-off process. This transparent electrode consisting of metal thin film with punched-like pattern by hole array was fabricated with 8 um separations. The separation of inkjet-printed etching resistant ink droplets was controlled in order to investigate the relationship between its electrical and optical properties of the electrodes. The aluminum areal density was defined to predict the electrical and optical properties of different arrays. A high and uniform transmittance spectrum appears to extend broadly into the UV region. The figure of merit of the transparent electrode was investigated in order to determine its performance as a transparent electrode. Moreover, there was no significant change in the resistance after 7000 bending cycles, indicating that the array conductor had superior stability. We also demonstrate transparent touch screen panels fabricated using the transparent electrode.

Original languageEnglish
Article number1572
JournalScientific reports
Volume12
Issue number1
DOIs
Publication statusPublished - 2022 Dec

Bibliographical note

Funding Information:
This study was conducted with the support of the Korea Institute of Industrial Technology as "Development of root technology for multi-product flexible production (KITECH EO-21-0008)". This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2021R1I1A3059714).

Publisher Copyright:
© 2022, The Author(s).

ASJC Scopus subject areas

  • General

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