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. 2016 Jan 19;7:10413. doi: 10.1038/ncomms10413

Figure 1. Growth of size-controlled semiconductor-metal nanohybrids.

Figure 1

(a) A scheme of the two-step metal growth deposition. (b) UV-vis absorbance spectra of CdS-Au hybrid nanoparticles showing the development of the plasmonic feature ∼540 nm as the Au tip size increases. TEM images of CdS-Au hybrid nanoparticles with 1.5±0.2 nm Au tip size after 1 h dark synthesis (c) and light-induced synthesis for 30 min with various CdS:Au molar ratio leading to Au tip size of of 3.0±0.5 nm (d) 4.8±0.7 nm (e), and 6.2±0.8 nm (f). Scale bars; c, 20 nm; d–f, 50 nm. (g) size distribution histogram of the Au metal tip diameters.