DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Extensively Microtwinned Diamond with Nanolaminates of Lonsdaleite Formed by Flash Laser Heating of Glassy Carbon

Journal Article · · Nano Letters

Diamond’s unique properties on the nanoscale make it one of the most important materials for use in biosensors and quantum computing and for components that can withstand the harsh environments of space. We synthesize oriented, faceted diamond particles by flash laser heating of glassy carbon at 16 GPa and 2300 K. Detailed transmission electron microscopy shows them to consist of a mosaic of diamond nanocrystals frequently joined at twin boundaries forming microtwins. Striking 3-fold translational periodicity was observed in both imaging and diffraction. This periodicity was shown to originate from nanodimensional wedge-shaped overlapping regions of twinned diamond and not from a possible 9R polytype, which has also been reported in other group IVa elements and water ice. Extended bilayers of hexagonal layer stacking were observed, forming lonsdaleite nanolaminates. In conclusion, the particles exhibited optical fluorescence with a rapid quench time (<1 ns) attributed to their unique twinned microstructure.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); Australian Research Council (ARC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2224179
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 22 Vol. 23; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (35)

Coherent control of a surface structural phase transition journal July 2020
Electron spin contrast of high-density and perfectly aligned nitrogen-vacancy centers synthesized by chemical vapor deposition journal January 2021
Direct correlation of microtwin distribution with growth face morphology of CVD diamond films by a novel TEM technique journal June 1994
Phase contrast STEM for thin samples: Integrated differential phase contrast journal January 2016
Epitaxial diamond polytypes on silicon journal July 2001
Lonsdaleite is faulted and twinned cubic diamond and does not exist as a discrete material journal November 2014
Flash heating in the diamond cell: Melting curve of rhenium journal June 2012
The pressure-temperature phase and transformation diagram for carbon; updated through 1994 journal January 1996
Structure modelling of  3 and  9 coincident boundaries in CVD diamond thin films journal January 1999
Photo-induced ionization dynamics of the nitrogen vacancy defect in diamond investigated by single-shot charge state detection journal January 2013
Origin of Threefold Periodicity in High-Resolution Transmission Electron Microscopy Images of Thin Film Cubic SiC journal November 1999
9R‐HREM Observations of a New Silicon Carbide Polytype journal January 1980
Ice goes fully cubic journal May 2020
Structural imperfections in CVD diamond films journal June 1989
Quantum networks based on color centers in diamond journal August 2021
Advances in laser-assisted conversion of polymeric and graphitic carbon into nanodiamond films journal August 2021
Tracking cubic ice at molecular resolution journal March 2023
Metastable ferroelectricity in optically strained SrTiO 3 journal June 2019
First-principles studies of diamond polytypes journal March 2008
Nanocrystalline diamond directly transformed from carbon nanotubes under high pressure journal January 2002
Melting diamond in the diamond cell by laser-flash heating journal December 2022
Exotic silicon phases synthesized through ultrashort laser-induced microexplosion: Characterization with Raman microspectroscopy journal September 2020
Raman spectroscopy study of detonation nanodiamond journal August 2018
Nano-to-micro diamond formation by nanosecond pulsed laser annealing journal September 2019
Hierarchically structured diamond composite with exceptional toughness journal June 2020
Twinning of cubic diamond explains reported nanodiamond polymorphs journal December 2015
Nanotwinned diamond with unprecedented hardness and stability journal June 2014
Modelling the inelastic scattering of fast electrons journal April 2015
Kinetically-induced hexagonality in chemically grown silicon nanowires journal July 2009
Experimental evidence of new tetragonal polymorphs of silicon formed through ultrafast laser-induced confined microexplosion journal June 2015
Space groups of the diamond polytypes journal November 1993
Structural analysis of a carbon foam formed by high pulse-rate laser ablation journal December 1999
Quantum sensors for biomedical applications journal February 2023
Proximal nitrogen reduces the fluorescence quantum yield of nitrogen-vacancy centres in diamond journal March 2022
Not All Fluorescent Nanodiamonds Are Created Equal: A Comparative Study journal January 2019