Room temperature carrier transport through large diameter bundles of semiconducting single-walled carbon nanotube
- Authors
- Han, Jae-Hee; Strano, Michael S.
- Issue Date
- Oct-2014
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Nanostructures; Semiconductors; Chemical synthesis; Electron microscopy; Microstructure; Electrical properties
- Citation
- MATERIALS RESEARCH BULLETIN, v.58, pp.1 - 5
- Journal Title
- MATERIALS RESEARCH BULLETIN
- Volume
- 58
- Start Page
- 1
- End Page
- 5
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12222
- DOI
- 10.1016/j.materresbull.2014.03.003
- ISSN
- 0025-5408
- Abstract
- In this work, we purify semiconducting SWNTs (S-SWNTs) using the density gradient method being already developed and compare carrier transport in dielectrophoretically formed bundles at 298 K to unseparated counterparts. We find that for a 36-nm-diameter S-SWNTs bundle produced in this work, resistance values ranging 0.4-1.6 M Omega are consistent with previously reported values for smaller diameter bundles (3 nm), where it was assumed that only the circumferential SWNT contributes to conduction from the electrode. Estimated transmission probabilities of 0.004 and 0.017, which are calculated in this work, are approximately 1-2 orders of magnitude lower than single nanotube counterparts, suggesting a significant amount of carrier scatterings in the bundled state. This is also reflected in the corresponding room temperature mean free paths of 18.6 and 43 nm, respectively, which are comparable to Ar+ ion damaged bundles of smaller size. We note that theses values are consistent with a value of 22 nm predicted from a semi-classical transport model for the elastic scattering length for carriers in an idealized (6, 5) SWNT. (C) 2014 Elsevier Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 공과대학 > 신소재공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12222)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.