Figure 3.

FESEM micrographs of the Gaq3nanostructures fabricated in He of various working pressures at higher working temperatures:a10 torr at 390 °C,b50 torr at 390 °C,c10 torr at 400 °C, andd50 torr at 400 °C

Yu et al. Nanoscale Research Letters 2009 4:820-827   doi:10.1007/s11671-009-9321-y