A hybrid enrichment process combining conjugated polymer extraction and silica gel adsorption for high purity semiconducting single-walled carbon nanotubes (SWCNT)

DOI	Resolve DOI: https://doi.org/10.1039/C5NR04851F
Author	Search for: Ding, Jianfu¹; Search for: Li, Zhao¹; Search for: Lefebvre, Jacques¹; Search for: Cheng, Fuyong¹; Search for: Dunford, Jeffrey L.¹; Search for: Malenfant, Patrick R. L.¹; Search for: Humes, Jefford; Search for: Kroeger, Jens
Name affiliation	National Research Council of Canada. Security and Disruptive Technologies
Format	Text, Article
Abstract	A novel purification process for the enrichment of sc-SWCNTs that combines selective conjugated polymer extraction (CPE) with selective adsorption using silica gel, termed hybrid-CPE (h-CPE), has been developed, providing a high purity sc-SWCNT material with a significant improvement in process efficiency and yield. Using the h-CPE protocol, a greater than 5 fold improvement in yield can be obtained compared to traditional CPE while obtaining sc-SWCNT with a purity >99.9% as assessed by absorption spectroscopy and Raman mapping. Thin film transistor devices using the h-CPE derived sc-SWCNTs as the semiconductor possess mobility values ranging from 10–30 cm2 V−1 s−1 and current ON/OFF ratio of 104–105 for channel lengths between 2.5 and 20 μm.
Publication date	2015-09-07
In	Nanoscale 7 (7 September 2015): 15741–15747.
Language	English
Peer reviewed	Yes
NPARC number	21276379
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Record identifier	d7a64ad2-04c0-4a1e-b934-b13c026812ee
Record created	2015-10-07
Record modified	2020-04-22