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Patterning via Optical Saturable Transitions - Fabrication and Characterization
Published on: December 11, 2014
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Spontaneous Patterning of High-Resolution Electronics via Parallel Vacuum Ultraviolet.
Xuying Liu1, Masayuki Kanehara2, Chuan Liu3
1World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0044, Japan.
Advanced Materials (Deerfield Beach, Fla.)
|May 18, 2016
Summary
A new parallel vacuum ultraviolet patterning method enables large-scale, complex electronic circuit fabrication with 1 μm resolution. This technique yields organic thin-film transistors with low resistance and high charge carrier mobility.
Area of Science:
- Materials Science
- Organic Electronics
- Nanofabrication
Background:
- Fabricating complex electronic circuits at large scales with high resolution remains a challenge.
- Organic electronics offer potential for flexible and low-cost devices, but their fabrication methods need improvement.
Purpose of the Study:
- To develop a novel, large-scale patterning technique for complex electronic circuits.
- To investigate the performance of organic thin-film transistors fabricated using this new method.
Main Methods:
- Development of a spontaneous patterning technique utilizing parallel vacuum ultraviolet (VUV) light.
- Fabrication of organic thin-film transistors (OTFTs) using the developed VUV patterning method.
- Characterization of OTFT electrical properties, including contact resistance and charge carrier mobility.
Main Results:
- Achieved 1 μm resolution for fabricating large-scale, complex electronic circuits.
- Prepared OTFTs demonstrated a low contact resistance of 1.5 kΩ cm.
- OTFTs exhibited high charge carrier mobilities of 0.3 cm(2) V(-1) s(-1) (1 μm channel length) and 1.5 cm(2) V(-1) s(-1) (5 μm channel length).
Conclusions:
- The parallel VUV spontaneous patterning technique is effective for high-resolution, large-scale fabrication of organic electronic circuits.
- The fabricated OTFTs show promising electrical performance, indicating the potential of this fabrication approach.
- This method could advance the development of advanced organic electronic devices and systems.
