Abstract
Pentacene organic field-effect transistors (OFETs) were fabricated by inserting a thin metallic oxide material MoO3 between pentacene and gold (Au) electrodes as an interlayer. Comparing with the corresponding single layer OFETs without any interlayer, theses OFETs with a thin MoO3 interlayer showed an obvious enhancement of hole mobility and slightly decrease of threshold voltage. The improvement of performance was investigated by interfacial energy level of the organic/metal interface, which showed that the MoO3 interlayer could significantly reduce the injection barrier between Au and pentacene. Moreover, the reduction of the injection barrier leads to a decrease of contact resistance at organic/metal interface, which improve the performance of the devices.
Original language | English (US) |
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Title of host publication | 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies |
Subtitle of host publication | Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy |
Volume | 8419 |
DOIs | |
State | Published - Dec 1 2012 |
Event | 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy - Xiamen, China Duration: Apr 26 2012 → Apr 29 2012 |
Other
Other | 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy |
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Country/Territory | China |
City | Xiamen |
Period | 4/26/12 → 4/29/12 |
Keywords
- Contact resistance
- Injection barrier
- MoO interlayer
- Organic field-effect transistors
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering