Diverse crystal morphology of carbon microstructures deposited on Fe-sputtered silicon substrate via carbothermal reaction technique

Authors

Alladin Jasmin ⋅ PH Department of Physical Sciences, University of the Philippines Baguio and National Institute of Physics, University of the Philippines Diliman
Hannah Rillera ⋅ PH National Institute of Physics, University of the Philippines Diliman
Oliver Semblante ⋅ PH National Institute of Physics, University of the Philippines Diliman
Claude Ceniza ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We developed a two-step method of synthesizing carbon microstructures in ambient pressure. A film of high-purity iron (Fe catalyst), with various thicknesses, was deposited on Si substrate by RF magnetron sputtering. Activated carbon powder was used as carbon source instead of hydrocarbon gas for deposition. Carbon deposition was carried out in a combustion furnace heated between 973K and 1123K in ambient atmosphere. The effect of reaction temperature to the deposition of carbon was studied. The use of thick Fe layer resulted to formation of uniform diamond like carbon (DLC) film, while thin Fe layer favored the formation of widely dispersed microstructures such as graphite crystallites, rods, cones and spheres.

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Issue

2009: Proceedings of the 27th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2009-PA-01

Section

Poster Session PA

Published

2009-10-28

How to Cite

[1]

A Jasmin, H Rillera, O Semblante, C Ceniza, and RV Sarmago, Diverse crystal morphology of carbon microstructures deposited on Fe-sputtered silicon substrate via carbothermal reaction technique, Proceedings of the Samahang Pisika ng Pilipinas 27, SPP-2009-PA-01 (2009). URL: https://proceedings.spp-online.org/article/view/SPP-2009-PA-01.