As shown in Fig. 2(a)– (c), the length of nanowires at different growth temperature is approximately 20 μm at 1050 ◦C, 1 μm at 900 ◦C, and several hundred of nanometers at 850 ◦C.
As shown in Fig. 2(a)–(c), the length of nanowires at different growth temperatureis approximately 20 μm at 1050 ◦C, 1 μm at900 ◦C, and several hundred of nanometers at 850 ◦C.