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Controllable growth of single walled CNTs using nanotemplates from diblock copolymers

  • Jennifer Lu (a1), Jia Bai (a1), Nick Moll (a1), Daniel Roitman (a1), Dorothy Yang (a1), Qiang Fu (a2), Jie Liu (a2), David Rider (a3), Ian Manners (a3) and Mitch Winnik (a3)...

Abstract

We use diblock copolymers as nanotemplates to produce various catalyst nanoclusters or catalyst-containing inorganic nanostructures with controlled size and spacing for carbon nanotube growth. We are able to generate periodically ordered catalytic nanostructures by spin coating polymer-based catalyst systems. As a result, uniformly distributed, low defect density single walled nanotubes(CNTs) have been obtained. CNTs with diameters of 1nm or less have been produced from iron-containing inorganic nanostructures using conventional chemical vapor deposition. The superior film forming ability of polymer-based catalyst systems enables selective growth of carbon nanotubes on lithographically predefined catalyst islands over a large surface area. The ability to control the density and location of CNTs offers great potential for practical applications. The initial MALDI-MS (Matrix Assisted Laser Desorption Ionization-Mass Spectrometry) results indicate that we can positively identify bovine serum albumin (BSA) at 500 attomoles using CNT surfaces produced by this method.

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Controllable growth of single walled CNTs using nanotemplates from diblock copolymers

  • Jennifer Lu (a1), Jia Bai (a1), Nick Moll (a1), Daniel Roitman (a1), Dorothy Yang (a1), Qiang Fu (a2), Jie Liu (a2), David Rider (a3), Ian Manners (a3) and Mitch Winnik (a3)...

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