Chem. Mater. 2008, 20, 7417–7424
7417
Assessment of (n,m) Selectively Enriched Small Diameter Single-Walled Carbon Nanotubes by Density Differentiation from Cobalt-Incorporated MCM-41 for Macroelectronics Li Wei,† Chun Wei Lee,‡ Lain-Jong Li,‡ Herry Gunadi Sudibya,† Bo Wang,† Long Qing Chen,† Peng Chen,† Yanhui Yang,† Mary B. Chan-Park,† and Yuan Chen*,† School of Chemical and Biomedical Engineering, Nanyang Technological UniVersity, Singapore 637459, School of Materials Science and Engineering, Nanyang Technological UniVersity, Singapore 639798 ReceiVed June 28, 2008. ReVised Manuscript ReceiVed October 14, 2008
Uniformly semiconducting or metallic single-walled carbon nanotube (SWNT) networks are ideal materials for flexible and large-area electronics (macroelectronics). With the goal of developing optimal enrichment and evaluation solutions toward economical production of monodisperse SWNTs for macroelectronics, we selectively enriched SWNTs, which have small diameters (
