A5067897520- Diamond and Carbon-based Materials Research
- High-pressure geophysics and materials
- Boron and Carbon Nanomaterials Research
- Advanced materials and composites
- Quantum Dots Synthesis And Properties
- Fuel Cells and Related Materials
- Gas Sensing Nanomaterials and Sensors
- Thermal Expansion and Ionic Conductivity
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- Metal and Thin Film Mechanics
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Magnetic and transport properties of perovskites and related materials
- Inorganic Chemistry and Materials
- Advanced Condensed Matter Physics
- Nanoplatforms for cancer theranostics
- 2D Materials and Applications
- Perovskite Materials and Applications
- Tunneling and Rock Mechanics
- Graphene research and applications
- Laser-Ablation Synthesis of Nanoparticles
- Advanced Nanomaterials in Catalysis
- Thin-Film Transistor Technologies
- Advanced Materials Characterization Techniques
Mudanjiang Normal University
2019-2025
State Key Laboratory of Superhard Materials
2013-2015
Jilin University
2013-2015
In this paper, high-purity zinc selenide (ZnSe) prepared by the Chemical Vapor Deposition (CVD) method was used as raw material, and iron ion-doped polycrystals were successfully fabricated through thermal diffusion at 1100 °C for 30 h. The results showed that ions (Fe2+) penetrated into crystals, but concentration of inside crystals relatively low, exhibited numerous defects. To address issue, we performed secondary sintering annealing on samples under high-temperature high-pressure (HPHT)...
To investigate the effect of hydrogen element on diamond crystallization, doped crystals are synthesized at 5.0–6.0 GPa and 1250–1600 °C by adding ferrocene (C10H10Fe) to a system carbon Fe-based solvent–catalyst. The essential dependence morphology nucleation composition crystallization medium is established in P–T diagram. It found that growth region {111} face becomes wider, while {100} narrower almost disappears with increasing concentration C10H10Fe. changing habits can be explained...
In this paper, diamond single crystals co-doped with H and B were successfully synthesized under a fixed pressure of 6.0 GPa temperature ranging from 1560 to 1600 K. the diamond, hydrogen was found be mainly incorporated as sp3 CH2, which had been detected by its characteristic stretching absorptions at 2920 cm−1 2850 Fourier transform infrared spectra. Raman measurements indicated that diamonds more compatible lattice structure than B-doped diamond. Hall effect showed p-type semiconductor...
In order to eliminate filiform defects in high-pressure and high-temperature synthetic diamonds, we have developed a gradient cooling technology applied it during the synthesis assembly process used later stage of diamond synthesis. Finite element simulations showed that von Mises stress at end varied greatly inside diamond. The rapid thermoelastic relief higher generated were root causes defects, which completely eliminated from interior time 300 min. Raman measurements indicated...
In this paper, diamond single crystals doped with LiH and boron additives were synthesized in [Formula: see text]–[Formula: text] system under high pressure temperature. Under the fixed condition, we found that synthesis temperature increased slightly after addition of system. The {100}-orientated surface morphology was investigated by scanning electron microscopy (SEM). nitrogen concentration obtained analyzed evaluated using Fourier transmission infrared spectroscopy (FTIR). Furthermore,...
In this paper, diamond single crystals have been successfully synthesized with potassium berohydride (KBH 4 ) additive from 0 wt.% to 0.4 in the NiMnCo–C system at 6 GPa and temperature range of 1300[Formula: see text]C–1350[Formula: text]C by gradient growth (TGG) method. The results experiments showed that color changed light yellow dark blue black, as KBH content increases wt.%. FTIR absorption spectroscopy peaks boron-related enhanced an increase additive. XPS boron, hydrogen, nitrogen...