Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8151230 | Journal of Crystal Growth | 2014 | 5 Pages |
Abstract
Hexagonal boron nitride (hBN) single crystals were grown using a Ni-Cr flux growth method. The crystallization cooling rate, soak temperature and soak time were controlled to determine their effect on crystal size and quality. A cooling rate of 2 °C/h produced the best quality hBN crystals. The maximum crystal width increased with soak temperature from 1 mm at 1450 °C to 5 mm at 1700 °C. The crystal thickness decreased with soak temperature from 500 µm at 1500 °C to 40 µm at 1700 °C. A soak time of 24 to 48 h produced the maximum crystal thickness. X-ray diffraction and Raman spectroscopy confirmed that the crystals were highly ordered and of high purity.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
T.B. Hoffman, B. Clubine, Y. Zhang, K. Snow, J.H. Edgar,