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Improved hBN Single-Crystal Growth by Adding Carbon in the Metal Flux
- Source :
- Crystal Growth & Design. 19:6252-6257
- Publication Year :
- 2019
- Publisher :
- American Chemical Society (ACS), 2019.
-
Abstract
- High-yield growth of large-sized single-crystal hexagonal boron nitride (hBN) bulk is receiving growing research interest due to its graphene-like two-dimensional structure while having distinct electrical and optical properties. In this study, enhanced yield and domain size were realized by adding carbon into the metal flux system (Ni–Cr) under atmospheric pressure. We found that both the yield and domain size increased more than 10 times in optimized carbon amount when compared with metal flux without carbon added. X-ray diffraction, Raman scattering, transmission electron microscope, energy-dispersive X-ray spectroscopy, and electron energy loss spectroscopy results confirmed single-phase hBN without detectable carbon or metal impurity. We suggest that the use of carbon provides a low-cost, stable, and safe alternative to achieve large-sized hBN single crystals.
- Subjects :
- Materials science
010405 organic chemistry
Electron energy loss spectroscopy
Analytical chemistry
chemistry.chemical_element
General Chemistry
010402 general chemistry
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Metal
symbols.namesake
chemistry
Transmission electron microscopy
Impurity
visual_art
Yield (chemistry)
visual_art.visual_art_medium
symbols
General Materials Science
Spectroscopy
Carbon
Raman scattering
Subjects
Details
- ISSN :
- 15287505 and 15287483
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- Crystal Growth & Design
- Accession number :
- edsair.doi...........06a10daf49bd549f77afa72d1f24c80c