Journal
NANO RESEARCH
Volume 5, Issue 5, Pages 307-319Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-012-0211-8
Keywords
Carbon nanotube network; thin film transistor; morphology; mobility; image processing; hysteresis
Categories
Funding
- Aalto University Multidisciplinary Institute of Digitalization and Energy (MIDE)
- R&D promotion scheme funding international joint research
- New Energy and Industrial Technology Development Organization (NEDO)
- Academy of Finland
- Nanotechnology Research Initiative (NRI)
- National Science Foundation (NSF)
- Army Research Office
Ask authors/readers for more resources
The properties of electronic devices based on carbon nanotube networks (CNTNs) depend on the carbon nanotube (CNT) deposition method used, which can yield a range of network morphologies. Here, we synthesize single-walled CNTs using an aerosol (floating catalyst) chemical vapor deposition process and deposit CNTs at room temperature onto substrates as random networks with various morphologies. We use four CNT deposition techniques: electrostatic or thermal precipitation, and filtration through a filter followed by press transfer or dissolving the filter. We study the mobility using pulsed measurements to avoid hysteresis, the on/off ratio, and the electrical noise properties of the CNTNs, and correlate them to the network morphology through careful imaging. Among the four deposition methods thermal precipitation is found to be a novel approach to prepare high-performance, partially aligned CNTNs that are dry-deposited directly after their synthesis. Our results provide new insight into the role of the network morphologies and offer paths towards tunable transport properties in CNT thin film transistors.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available