Structural features of heavily boron-doped graphite and diamond microcrystals synthesized at high pressures

被引：3

作者：

Filonenko, Vladimir P. ^{[1
]}

Bagramov, Rustem Kh. ^{[1
]}

Zibrov, Igor P. ^{[1
]}

Chtchelkachev, Nikolay M. ^{[1
]}

Lyapin, Sergey G. ^{[1
]}

V. Enkovich, Pavel ^{[1
]}

V. Brazhkin, Vadim ^{[1
]}

机构：

[1] Russian Acad Sci, Vereshchagin Inst High Pressure Phys, Moscow 108840, Russia

来源：

关键词：

High pressure synthesis; Boron -doped graphite; Boron -doped diamond; Computer simulations; Raman spectroscopy; X-ray diffraction; O-H FLUIDS; POLYCRYSTALLINE DIAMOND; TEMPERATURE SYNTHESIS; GROWTH-MECHANISM; RAMAN-SPECTRA; CRYSTALLIZATION; NANOPARTICLES; ELECTRODES; EFFICIENT; CENTERS;

D O I：

10.1016/j.diamond.2022.109383

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Heavily boron-doped graphite was synthesized from a mixture of adamantane and boron using a high-pressure technique. Ab initio calculations of a carbon cluster of 64 atoms located in two layers of graphene with the inclusion of one boron atom were made. Substitution of boron for carbon in the graphene layer correlates with the experimental data if we consider the change in the cell parameters. The easy transformation of the borondoped graphite lattice into a diamond one at pressure of about 7.5 GPa may be due to the presence of a small number of boron atoms between graphene layers. Heavily boron-doped diamond crystals in the shape of a fivepointed star were found. The mechanism of their growth includes cyclic twinning and is obviously associated with the presence of a fluid phase in the synthesis medium and facilitated twinning of a diamond lattice containing boron.

引用

页数：7

共 53 条

[1] Crystallization of diamond from C-O-H fluids under high-pressure and high-temperature conditions [J].

Akaishi, M ;

Yamaoka, S .

JOURNAL OF CRYSTAL GROWTH, 2000, 209 (04) :999-1003

[2] Boron-Carbon Nanocomposites Fabricated at High Pressures and Temperatures [J].

Bagramov, R. Kh. ;

Serebryanaya, N. R. ;

Prokhorov, V. M. ;

Blank, V. D. .

TECHNICAL PHYSICS, 2018, 63 (07) :1010-1014

[3] Direct Evidence of Catalytic Role of Boron in Graphite-to-Diamond Solid-Phase Conversion under High Pressure [J].

Bagramov, Rustem ;

Filonenko, Vladimir ;

Zibrov, Igor ;

Lyapin, Sergey ;

Vlasov, Igor .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2020, 14 (08)

[4] Highly boron-doped graphite and diamond synthesized from adamantane and ortho-carborane under high pressure [J].

Bagramov, Rustem H. ;

Filonenko, Vladimir P. ;

Zibrov, Igor P. ;

Skryleva, Elena A. ;

V. Nikolaev, Alexander ;

Pasternak, Dmitrii G. ;

Vlasov, Igor I. .

MATERIALIA, 2022, 21

[5] About the origin of the low wave number structures of the Raman spectra of heavily boron doped diamond films [J].

Bernard, M ;

Baron, C ;

Deneuville, A .

[6] Impurity dimers in superconducting B-doped diamond:: Experiment and first-principles calculations [J].

Bourgeois, E. ;

Bustarret, E. ;

Achatz, P. ;

Omnes, F. ;

Blase, X. .

PHYSICAL REVIEW B, 2006, 74 (09)

[7] Lattice parameters and thermal expansion of superconducting boron-doped diamonds [J].

Brazhkin, V. V. ;

Ekimov, E. A. ;

Lyapin, A. G. ;

Popova, S. V. ;

Rakhmanina, A. V. ;

Stishov, S. M. ;

Lebedev, V. M. ;

Katayama, Y. ;

Kato, K. .

PHYSICAL REVIEW B, 2006, 74 (14)

[8] The effect of boron doping on the lattice parameter of homoepitaxial diamond films [J].

Brunet, F ;

Germi, P ;

Pernet, M ;

Deneuville, A ;

Gheeraert, E ;

Laugier, F ;

Burdin, M ;

Rolland, G .

[9] Production of nano- and microdiamonds with Si-V and N-V luminescent centers at high pressures in systems based on mixtures of hydrocarbon and fluorocarbon compounds [J].

Davydov, V. A. ;

Rakhmanina, A. V. ;

Lyapin, S. G. ;

Ilichev, I. D. ;

Boldyrev, K. N. ;

Shiryaev, A. A. ;

Agafonov, V. N. .

JETP LETTERS, 2014, 99 (10) :585-589

[10] Conversion of polycyclic aromatic hydrocarbons to graphite and diamond at high pressures [J].

Davydov, VA ;

Rakhmanina, AV ;

Agafonov, V ;

Narymbetov, B ;

Boudou, JP ;

Szwarc, H .

CARBON, 2004, 42 (02) :261-269

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