| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7849933 | Carbon | 2016 | 7 Pages |
Abstract
In this paper we report on the study of the buried laser-modified region produced inside single crystal diamond by femtosecond laser irradiation. The cross-section of the modified region was prepared via precise mechanical polishing to investigate its intrinsic structure with Raman spectroscopy, scanning electron microscopy and scanning spreading resistance microscopy. It is found that the opaque laser-modified region is pierced by 40-100Â nm thick sheets of graphenic carbon united into a single conductive network, while the gaps between the sheets are filled by diamond. Only small part of the irradiated diamond volume (â¼16Â vol. %) is transformed into the sp2 phase. The results obtained are consistent with the model of laser-induced crack-assisted phase transition in diamond bulk proposed earlier.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
K.K. Ashikkalieva, T.V. Kononenko, E.A. Obraztsova, E.V. Zavedeev, A.A. Khomich, E.E. Ashkinazi, V.I. Konov,