The fourth in a series of workshops was held at NIST on March 4-5, 1996 to discuss, in depth. specific topics deemed important to the characterization of diamond films made by chemical vapor deposition (CVD diamond) and to address the need for standards in diamond technology. There were 28 registered participants at the workshop. We focussed on two technical topics for discussion: adhesion of C...

We demonstrate the construction of diamond photonic crystal structures by the translation of a multi-beam interference pattern. Using phase shift of each beam, the double-exposed interference patterns can be aligned in the [111] direction for a face-centered cubic (FCC) and [210] direction for a body-centered cubic (BCC), respectively, producing diamond D from FCC and BCC-diamond like structure...

The surface of hydrogen-terminated diamond resembles a solid hydrocarbon substrate. Interestingly, the C-H bonds on the diamond surface are not as unreactive as that of saturated hydrocarbon molecules owing to its unique surface electronic properties. The invention of C-H bond activation and C-C coupling reactions on the diamond surface allows chemists to develop powerful chemical transistors, ...

Methane is an extremely important energy source with a great abundance in nature and plays a significant role in planetary physics, being one of the major constituents of giant planets Uranus and Neptune. The stable crystal forms of methane under extreme conditions are of great fundamental interest. Using the ab initio evolutionary algorithm for crystal structure prediction, we found three nove...

© 2014 Materials Research Society MRS BULLETIN • VOLUME 39 • JUNE 2014 • www.mrs.org/bulletin Introduction Chemical vapor deposition (CVD) diamond fi lm technology has experienced modest growth in the last two decades in terms of scientifi c and technological advances in the fi eld, which has, ultimately, positively affected progress in diamondbased microelectromechanical/nanoelectromechanical ...

a r t i c l e i n f o The amorphization and graphitization of single-crystal diamond by ion implantation were explored using transmission electron microscopy (TEM). The effect of ion implantation and annealing on the microstructure was studied in (100) diamond substrates Si + implanted at 1 MeV. At a dose of 1 × 10 15 cm − 2, implants done at 77 K showed a damage layer that evolves into amorpho...

342 NATURE | VOL 399 | 27 MAY 1999 | www.nature.com A micro-Raman spectrometer was used for the further characterization of the deposited diamond. A laser beam of 1-mm spot size was focused onto the crystallites. Figure 3 shows the resulting Raman spectrum: it exhibits a first-order diamond peak centred at 1,332.8 cm. The high intensity of the diamond peak, its small full-width at half-maximum ...

The impressively low friction and wear of diamond in humid environments is debated to originate from either the stability of the passivated diamond surface or sliding-induced graphitization/rehybridization of carbon. We find ultralow friction and wear for ultrananocrystalline diamond surfaces even in dry environments, and observe negligible rehybridization except for a modest, submonolayer amou...