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Title: Characterization of Bulk Grown GaN and AlN Single Crystal Materials

Journal Article · · Journal of Crystal Growth

Sublimation method, spontaneously nucleated as well as seeded on SiC substrates, has been employed for growing AlN bulk crystals. For GaN growth, in addition to the sublimation method using sapphire substrates, ammonothermal growth (analogous to the hydrothermal method) on HVPE GaN seeds is also being used. Thick plates/films of AlN and GaN grown by these methods have been characterized by synchrotron white beam X-ray topography (SWBXT) and high resolution X-ray diffraction (HRXRD). Results from a recent set of growth experiments are discussed.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
Sponsoring Organization:
Doe - Office Of Science
DOE Contract Number:
DE-AC02-98CH10886
OSTI ID:
929834
Report Number(s):
BNL-80398-2008-JA; JCRGAE; TRN: US0806654
Journal Information:
Journal of Crystal Growth, Vol. 287; ISSN 0022-0248
Country of Publication:
United States
Language:
English