With twice increased deposition amount, the Au droplets grew much bigger and taller and the density was significantly reduced. For example, the AH was approximately 48 nm and the LD was approximately 130 nm, which are approximately × 2.7 increased AH and approximately × 3 RG7420 nmr increased LD. The AD was 6.8 × 109 cm−2 on average, which is approximately × 6.8 decrease as compared to the sample in Figure 5(b).

It follows that while the increased annealing duration has a minor effect on the droplet size and density, the deposition amount can significantly affect the size and density of resulting droplets. Further studies are now underway for a more systematic study on deposition amount and annealing duration effects on A-1210477 mw self-assembled Au droplets. Figure 6 Extended annealing duration and increased deposition amount effects and AFM side views. (a) Extended annealing duration effect on self-assembled Au droplets. (b) Increased deposition amount effect. Au droplets in (a) are fabricated with 2 nm of Au deposition

at 700°C with × 5 longer annealing duration of 150 s. In (b), the Au droplets are fabricated with 30 s at 700°C with an increased deposition amount of 4 nm. (a) and (b) are AFM top views of 1 (x) × 0.5 (y) μm2 and (a-2) and (b-2) show AFM side views of 1 × 1 μm2. Conclusions In brief, the annealing temperature effect on the fabrication of self-assembled Au XAV-939 in vivo droplets on Si (111) was studied in terms of size, density, and uniformity with AFM images, line profiles, FFT power spectra, and histograms. In general, the dimensions of Au droplets including the Thalidomide average height and diameter were gradually increased with the increased annealing temperature. The expansion of dimensions was accompanied by the reduction in the average density. The Au droplets fabricated below 500°C showed somewhat poor uniformities as evidenced by

the FFT spectra, and the uniformity was improved between 550°C and 800°C likely due to favorable surface diffusion of adatoms induced by sufficient thermal energy. At above 850°C, the Au droplets began melting due to the lower eutectic point of Au-Si alloy, and the melting got severe as temperature was increased. With an increased deposition amount, the size of Au droplets grew much larger and the density was significantly decreased. Meanwhile, the increased annealing duration showed minor effects on the droplet size and density. This study can find applications in the fabrication of nanowires on Si (111). Acknowledgements This work was supported by the National Research Foundation (NRF) of Korea (no. 2011-0030821 and 2013R1A1A1007118). This research was in part supported by the research grant of Kwangwoon University in 2013. References 1. Tzyy-Jiann W, Cheng-Wei T, Fu-Kun L: Integrated-Optic Surface-Plasmon-Resonance Biosensor Using Gold Nanoparticles by Bipolarization Detection. IEEE Journal of Selected Topics in Quantumelectronics 2005,11(2):493–499.CrossRef 2.