Issue 49, 2016

A photodegradable hexaaza-pentacene molecule for selective dispersion of large-diameter semiconducting carbon nanotubes

Abstract

Harvesting high-purity semiconducting single-walled carbon nanotubes (s-SWCNTs) with removable dispersants remains a challenge. In this work, we demonstrate that small heteroacene derivatives may serve as promising selective dispersants for sorting s-SWCNTs. A rich N “doped” and thiophene-substituted hexaazapentacene molecule, denoted as 4HP, was found to be more favorable for high-purity s-SWCNTs with large diameters. Importantly, 4HP is photodegradable under 365 nm or blue light, which enables a simple deposition approach for the formation of clean s-SWCNT networks. The as-fabricated thin film transistors show excellent performance with a charge-mobility of 30–80 cm2 V−1 s−1 and an on–off ratio of 104–106.

Graphical abstract: A photodegradable hexaaza-pentacene molecule for selective dispersion of large-diameter semiconducting carbon nanotubes

Supplementary files

Article information

Article type
Communication
Submitted
20 Feb 2016
Accepted
17 May 2016
First published
18 May 2016

Chem. Commun., 2016,52, 7683-7686

A photodegradable hexaaza-pentacene molecule for selective dispersion of large-diameter semiconducting carbon nanotubes

J. Han, Q. Ji, H. Li, G. Li, S. Qiu, H. Li, Q. Zhang, H. Jin, Q. Li and J. Zhang, Chem. Commun., 2016, 52, 7683 DOI: 10.1039/C6CC01558A

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