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Stability of hydrogenated nanodiamonds under extreme ultraviolet irradiation |
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| Authors: | YuV Butenko PR Coxon M Yeganeh AC Brieva K Liddell VR Dhanak L &#x;iller |
| Affiliation: | aSchool of Chemical Engineering and Advanced Materials, University of Newcastle upon Tyne, Newcastle upon Tyne, NE1 7RU, UK bCCLRC, Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, UK cPhysics Department, University of Liverpool, Liverpool L69 3BX, UK |
| Abstract: | It is generally accepted that diamond is resistant to a wide spectrum of electromagnetic radiation from the ultraviolet through to the soft X-ray range, which makes it very attractive for the fabrication of diamond-based photodetectors. However the effect of photon radiation on the diamond structure has not yet been examined. In the work presented here, photoelectron spectroscopy has been used to study the graphitization of nanodiamond crystallites exposed to extreme ultraviolet radiation. Under such irradiation, the surface hydrogen groups and graphite species are found to prevent graphitization. The mechanism of radiation-induced nanodiamond graphitization is discussed. |
| Keywords: | Detectors Nanoparticles Radiation induced effects Surface characterization |
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