Selective dispersion of high purity semiconducting single-walled carbon nanotubes with regioregular poly(3-alkylthiophene)s
SCIE
SCOPUS
- Title
- Selective dispersion of high purity semiconducting single-walled carbon nanotubes with regioregular poly(3-alkylthiophene)s
- Authors
- Hang Woo Lee; Yeohoon Yoon; Steve Park; Oh, JH; Sanghyun Hong; Luckshitha S. Liyanage; Huiliang Wang; Satoshi Morishita; Nishant Patil; Young Jun Park; Jong Jin Park; Andrew Spakowitz; Giulia Galli; Francois Gygi; Philip H.-S. Wong; Jeffrey B.-H. Tok; Jong Min Kim; Zhenan Bao
- Date Issued
- 2011-11
- Publisher
- Nature publishing group
- Abstract
- Conjugated polymers, such as polyfluorene and poly(phenylene vinylene), have been used to selectively disperse semiconducting single-walled carbon nanotubes (sc-SWNTs), but these polymers have limited applications in transistors and solar cells. Regioregular poly(3-alkylthiophene)s (rr-P3ATs) are the most widely used materials for organic electronics and have been observed to wrap around SWNTs. However, no sorting of sc-SWNTs has been achieved before. Here we report the application of rr-P3ATs to sort sc-SWNTs. Through rational selection of polymers, solvent and temperature, we achieved highly selective dispersion of sc-SWNTs. Our approach enables direct film preparation after a simple centrifugation step. Using the sorted sc-SWNTs, we fabricate high-performance SWNT network transistors with observed charge-carrier mobility as high as 12 cm(2)V(-1)s(-1) and on/off ratio of > 10(6). Our method offers a facile and a scalable route for separating sc-SWNTs and fabrication of electronic devices.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/11770
- DOI
- 10.1038/NCOMMS1545
- ISSN
- 2041-1723
- Article Type
- Article
- Citation
- NATURE COMMUNICATIONS, vol. 2, no. 541, 2011-11
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