Size-controllable synthesis of ultrasmall diamonds from halogenated adamantanes at high static pressure

High pressure: a feasible tool for the synthesis of unprecedented inorganic compounds

“…The cage molecular structure of halogen adamantane and the chemical properties of specific halogen elements ensure the effective nucleation of diamonds and their slow growth in C-H-Br systems at temperatures up to 2000 K, which provide new directions for the controlled synthesis of NDs. 121 Under the conditions of pressure 9.4 GPa and temperature 1500-1700 K, using a mixture of tetraphenyl germane C 24 H 20 Ge and adamantane C 10 H 16 as reactants, the synthesis of Ge-doped NDs with an average crystal size of 50 nm on a large scale was achieved, which strongly suggests that using high pressure is still the most effective method for obtaining doped NDs. 122 Filiform defects were observed throughout the interior of diamonds synthesized using traditional rapid cooling technology.…”

Nucleation of diamond films on heterogeneous substrates: a review

“…During the growth they introduced silane in very low quantities to create silicon vacancy centres. Furthermore, diamondoids have been used to grow nanodiamonds [185][186][187][188] using HPHT technique. The discussion on such growth is beyond the scope of this review.…”

Structural and Optical Properties of Silicon Carbide Powders Synthesized from Organosilane Using High-Temperature High-Pressure Method

“…The middle peak (LO + TO) is the least intense; it is not an overtone of the optical phonon modes, and it corresponds to a combination of phonons of different branches. The high-frequency peak (2LO) is the result of the scattering of two transverse optical phonons, with quasimomenta near the M point of the Brillouin zone [41].…”