2021年第82回応用物理学会秋季学術講演会

講演情報

一般セッション(口頭講演)

21 合同セッションK「ワイドギャップ酸化物半導体材料・デバイス」 » 21.1 合同セッションK 「ワイドギャップ酸化物半導体材料・デバイス」

[12p-N206-1~19] 21.1 合同セッションK 「ワイドギャップ酸化物半導体材料・デバイス」

2021年9月12日(日) 13:00 〜 18:15 N206 (口頭)

杉山 睦(東理大)、片山 司(北大)、神野 莉衣奈(東大)

13:15 〜 13:30

[12p-N206-2] Effect of UV-irradiation Time on the Transfer Characteristics of All Solution-processed a-IZO Thin-Film Transistor

〇(D)Umu Hanifah1、Juan Paolo Bermundo1、Dianne Corsino1、Mutsunori Uenuma1、Yukiharu Uraoka1 (1.Nara Institute of Science and Technology)

キーワード:solution-processed, thin-film transistor, UV-irradiation

Next-generation devices need a simple fabrication process and low-temperature fabrication. From these criteria, the solution-process approach is a promising method. A few studies focus on a-IZO TFT electrical performance improvement have been reported, but using a quick and simple way by varying UV-irradiation time still needs further investigation. This research aims to study the effect of UV-irradiation time on the transfer curve of a-IZO TFT.
Top-gate self-aligned structure a-IZO TFT was fabricated using all-solution process. Then UV-irradiation was performed at 115°C for 60, 90, and 120 min. After UV treatment, the exposed IZO layer transforms as gate, source, and drain, respectively. The UV-irradiation time combine with low-temperature heat enhance the transfer characteristics. This work has demonstrated that varying UV-irradiation time is a simple and promising method to improve a-IZO TFT performance at low-temperature process, which is useful for flexible substrate application.