From the nucleation of wiggling Au nanostructures to the dome-shaped Au droplets on GaAs (111)A, (110), (100), and (111)B

Table 1 Summary of AH, LD, and AD of self-assembled Au droplets

	I	T_a(°C)
	I	400	450	500	550
Average height (AH) [nm]	(111)A	23.4	25.4	28.9	32.2
	(110)	22.6	24.7	28.2	31.2
	(100)	21.7	24.0	26.7	29.7
	(111)B	19.9	22.3	25.2	27.8
Average lateral diameter (LD) [nm]	(111)A	128.6	133.8	138.5	143.4
	(110)	122.5	128	133.8	141
	(100)	115	124.5	130.8	139.1
	(111)B	106.2	115.5	123.5	133.1
Average density (AD) [×10⁸ cm⁻²]	(111)A	139	123	110	99
	(110)	148	131	118	107
	(100)	160	141	129	119
	(111)B	173	150	140	132

The Au droplets were fabricated by annealing between 400°C and 550°C on GaAs (111)A, (110), (100), and (111)B. I, index of substrates; T_a, annealing temperature.