Characterization of MBE grown diamond structure on Ti/sapphire

Diamond crystallites were found on titanium/sapphire surface as a result of evaporation of C60 from effusion cell in molecular beam epitaxy (MBE) reactor. Substrate temperature, effusion cell temperature and base pressure of the MBE chamber were set as 1050 °C, 650 °C and 1 x 10−9 Torr, respectively...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 60; no. 1; pp. 12012 - 6
Main Authors Asghar, M, Mahmood, K, Ain, Noor ul, Stiputra, W, Tsu, R
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2014
Subjects
Base pressure
Buckminsterfullerene
Crystallites
Diamonds
Diffraction patterns
Fullerenes
Microscopy
Molecular beam epitaxy
Molecular structure
Optical microscopy
Photomicrographs
Raman spectra
Sapphire
Substrates
Titanium
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Summary:Diamond crystallites were found on titanium/sapphire surface as a result of evaporation of C60 from effusion cell in molecular beam epitaxy (MBE) reactor. Substrate temperature, effusion cell temperature and base pressure of the MBE chamber were set as 1050 °C, 650 °C and 1 x 10−9 Torr, respectively. Raman scattering of the as-grown layers revealed the existence of diamond and graphite at 1337 cm−1 and 1592 cm−1 respectively. Moreover, x-ray-diffraction pattern, micrographs exposed from scanning electron microscopy and optical microscopy also confirmed the evidence of MBE diamond crystallites.
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ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/60/1/012012