Improvement of vertical organic field-effect transistors by surface modification of metallic source electrodes

Jui Fen Chang, Yi Chien Lai, Rui Hao Yang, Yaw Wen Yang, Chia Hsin Wang

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

A proper design of the injection barrier between a source electrode and an active layer is essential to achieve high-performance vertical organic field-effect transistors (VOFETs). Here, we show that a modification of metallic source electrodes with thiol-based self-assembled monolayers (SAMs) is effective in controlling the electrode work function and injection barrier into the active layer, leading to a significantly reduced off-current and undegraded on-current in an optimized VOFET. For the studied C60 VOFETs with Ag electrodes, the on/off ratio improves from <10 to 103-104 when the injection barrier is varied from 0.02 to 0.33 eV by SAM modification.

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文章編號111601
期刊Applied Physics Express
10
發行號11
DOIs
出版狀態已出版 - 11月 2017

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