High Sensitivity Tuning of Work Function of Self-Assembled Monolayers Modified Electrodes Using Vacuum Ultraviolet Treatment

Porraphon Tantitarntong; Peter Zalar; Naoji Matsuhisa; Kyohei Nakano; Sunghoon Lee; Tomoyuki Yokota; Keisuke Tajima; Takao Someya

doi:10.1021/acsami.7b09756

High Sensitivity Tuning of Work Function of Self-Assembled Monolayers Modified Electrodes Using Vacuum Ultraviolet Treatment

Porraphon Tantitarntong, Peter Zalar, Naoji Matsuhisa, Kyohei Nakano, Sunghoon Lee, Tomoyuki Yokota, Keisuke Tajima, Takao Someya

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We demonstrate systematic work function tuning of thiol-based SAM-modified gold electrodes with high controllability and sensitivity as high as 0.05 eV using vacuum ultraviolet technique (VUV). Under different irradiation times, both work function and wettability of the metal surface is modified. Fine tuning of the electrode work function is demonstrated by observable changes in the reverse current of a polymer Schottky diode. Additionally, the change in SAM chemical functionality validates the work function changes of VUV-irradiated electrodes. Our selective work function patterning on a single Au electrode via VUV could also reduce the required fabrication steps for more complex circuits.

Original language	English
Pages (from-to)	28151-28156
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	34
DOIs	https://doi.org/10.1021/acsami.7b09756
Publication status	Published - 2017 Aug 30
Externally published	Yes

Keywords

organic semiconductors
self-assembled monolayers
UPS
vacuum ultraviolet
work function tuning

ASJC Scopus subject areas

Materials Science(all)

Access to Document

10.1021/acsami.7b09756

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High Sensitivity Tuning of Work Function of Self-Assembled Monolayers Modified Electrodes Using Vacuum Ultraviolet Treatment. / Tantitarntong, Porraphon; Zalar, Peter; Matsuhisa, Naoji; Nakano, Kyohei; Lee, Sunghoon; Yokota, Tomoyuki; Tajima, Keisuke; Someya, Takao.

In: ACS Applied Materials and Interfaces, Vol. 9, No. 34, 30.08.2017, p. 28151-28156.

Research output: Contribution to journal › Article › peer-review

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AU - Nakano, Kyohei

AU - Lee, Sunghoon

AU - Yokota, Tomoyuki

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