Synthesis of multifunctional single-wall carbon nanotube-amorphous diamond thin film composites

David B. Geohegan; C. Henrik Schittenhelm; Alexander A. Puretzky; M. J. Lance; Gerald E. Jellison Jr.; Philip F. Britt

doi:10.1117/12.483866

17 October 2003 Synthesis of multifunctional single-wall carbon nanotube-amorphous diamond thin film composites

David B. Geohegan, C. Henrik Schittenhelm, Alexander A. Puretzky, M. J. Lance, Gerald E. Jellison Jr., Philip F. Britt

Proceedings Volume 4977, Photon Processing in Microelectronics and Photonics II; (2003) https://doi.org/10.1117/12.483866
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

The first thin-film single-wall carbon nanotube (SWNT) composites synthesized by pulsed laser deposition (PLD) are reported. Ultrahard, transparent, pure-carbon, electrically-insulating, amorphous diamond thin films were deposited by PLD as scratch-resistant, encapsulating matrices for disperse, electrically conductive mats of SWNT bundles. In situ resistance measurements of the mats during PLD, as well as ex situ Raman spectroscopy, I-V measurements, spectroscopic ellipsometry, and field emission scanning electron microscopy, are used to understand the interaction between the SWNT and the highly energetic (approximately 100 eV) carbon species responsible for the formation of the amorphous diamond thin film. The results indicate that a large fraction of SWNT within the bundles survive the energetic bombardment from the PLD plume, preserving the metallic behavior of the interconnected nanotube mat, although with higher resistance. Amorphous diamond film thicknesses of only 50 nm protect the SWNT against wear, providing scratch hardness up to 25 GPa in an optically transmissive, all-carbon thin film composite.

Citation Download Citation

David B. Geohegan, C. Henrik Schittenhelm, Alexander A. Puretzky, M. J. Lance, Gerald E. Jellison Jr., and Philip F. Britt "Synthesis of multifunctional single-wall carbon nanotube-amorphous diamond thin film composites", Proc. SPIE 4977, Photon Processing in Microelectronics and Photonics II, (17 October 2003); https://doi.org/10.1117/12.483866

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