T = 50°C. Concentration distributions of main gaseous species in the growth cell during sublimation growth of GaN. The color transition from blue to red indicates increasing species mass fraction (from 8.6·10-4 to 7.9·10-3 for gallium, from 0.15 to 0.73 for ammonia, and from 0.26 to 0.98 for hydrogen). The substrate temperature is 1150°C, the temperature difference T = 50°C.
© 1998 The Materials Research Society
