DataVXACS Applied Materials & InterfacesPaper
journal article·2017-08-30

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

ACS Applied Materials & Interfaces· Volume 9· Issue 34
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Source abstract

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.
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Research context

Polymers

OpenAlex topics: Molecular Junctions and Nanostructures · Conducting polymers and applications · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology · Exploratory Research for Advanced Technology · Japan Society for the Promotion of Science · University of Tokyo

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