Volume 60, Number 6, 2010¸ 6 Z 4, pp. 591∼594
New Physics: Sae Mulli (The Korean Physical Society), DOI: 10.3938/NPSM.60.591
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Study on the Self-assembled Process of Single-walled Carbon Nanotubes (SWNTs) Fabricated Using Only Photolithography and the Fabrication of
SWNT-based Multi-channel Field-emission Transistors
Kyeong Heon Kim
Photonics/Sensor System Center, Robotics/Systems Division, Korea Institute of Science and Technology, Seoul 136-791 Department of Electronic Engineering, Korea University, Seoul 136-713
Tae Geun Kim
Department of Electronic Engineering, Korea University, Seoul 136-713
Sun Ho Kim · Young Tae Byun ∗
Photonics/Sensor System Center, Robotics/Systems Division, Korea Institute of Science and Technology, Seoul 136-791
(Received 11 May, 2010 : accepted 10 June, 2010)
-591-
-592- ô Dz D GÓ ü t o < Æ rt “D hÓ ü t o ”, Volume 60, Number 6, 2010¸ 6 Z 4
In this research, we investigated a selective assembly method of fabricating single-walled carbon nanotubes (SWNTs) on a silicon (Si) surface by using only a photolithographic process; then, we fab- ricated field-emission transistors (FETs). Photoresist (PR) patterns were made on a silicon-dioxide (SiO
2)-grown Si substrate by using a photolithographic process. This PR-patterned substrate was dipped into a SWNT solution dispersed in dichlorobenzene (DCB). The PR patterns were removed by using aceton. As a result, selectively-assembled SWNT channels could be obtained between two electrodes (source and drain electrodes) without complicated chemical steps using octadecyl- trichlorosilane (OTS). Finally, we successfully fabricated SWNT-based multi-channel FETs by using our novel self-assembly method.
PACS numbers: 07.79, 85.30.T
Keywords: SWNT, CNT, FET, Photolithography
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