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http://hdl.handle.net/1942/4167
Title: | Hydrogen bonding at grain surfaces and boundaries of nanodiamond films detected by high resolution electron energy loss spectroscopy | Authors: | Michaelson, Sh. Ternyak, O. Hoffman, A. WILLIAMS, Oliver Gruen, D. M. |
Issue Date: | 2007 | Publisher: | AMER INST PHYSICS | Source: | APPLIED PHYSICS LETTERS, 91(10). p. 103104-... | Abstract: | Hydrogenated nanodiamond films consisting of 300 and 10-30 nm grain sizes were examined by high resolution electron energy loss spectroscopy. C-H stretching modes were identified at 350, 360, and 375 meV. The mode at 375 meV was enhanced in the case of 10-30 nm grain size and it is stable up to in situ annealing to >>800 degrees C. Complete hydrogen desorption occurs upon annealing to 1000 degrees C. Exposure of the nanodiamond film to atomic hydrogen results in a strong quenching of the 375 meV C-H mode, most likely due to preferential etching of (sp(2))-carbon-hydrogen at the surface and grain boundaries of the films. | Notes: | Technion Israel Inst Technol, Schulich Fac Chem, IL-32000 Haifa, Israel. Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. IMEC, Div IMOMEC, B-3590 Diepenbeek, Belgium. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.Hoffman, A, Technion Israel Inst Technol, Schulich Fac Chem, IL-32000 Haifa, Israel.choffman@tx.technion.ac.il | Document URI: | http://hdl.handle.net/1942/4167 | ISSN: | 0003-6951 | e-ISSN: | 1077-3118 | DOI: | 10.1063/1.2779848 | ISI #: | 000249322900057 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2008 |
Appears in Collections: | Research publications |
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