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Local Synthesis of Carbon Nanotubes in Silicon Microsystems: The Effect of Temperature Distribution on Growth Structure.

Research paper by Bao Q BQ Ta, Tormod B TB Haugen, Nils N Hoivik, Einar E Halvorsen, Knut E KE Aasmundtveit

Indexed on: 26 Jul '13Published on: 26 Jul '13Published in: Materials



Abstract

Local synthesis and direct integration of carbon nanotubes (CNTs) into microsystems is a promising method for producing CNT-based devices in a single step, low-cost, and wafer-level, CMOS/MEMS-compatible process. In this report, the structure of the locally grown CNTs are studied by transmission imaging in scanning electron microscopy-S(T)EM. The characterization is performed directly on the microsystem, without any post-synthesis processing required. The results show an effect of temperature on the structure of CNTs: high temperature favors thin and regular structures, whereas low temperature favors "bamboo-like" structures.