264
S. E. H. Murph and E. Searles
Fig. 6 Comprehensive illustration of increased gold loading through seeded reaction method
presenting the weight percent loading capacity, energy-dispersive X-ray analysis (EDS) mapping
and scanning electron microscopy images. (Color figure online)
gradually increase gold decoration of the iron oxide without negatively impacting
the integrity of the iron oxide support.
UV-vis absorbance of each trial during the seeded reaction shows a more defined
plasmon band gold peak at 520 nm demonstrating a greater decoration on iron oxide
as shown in Fig. 7a. This increased gold loading on the iron oxide was confirmed
by analyzing the weight percent of elemental gold through the use of the energydispersive X-ray analysis (EDS). Figure 7b illustrates the tunability of gold loading,
namely “hot-spot” creation, through seeded reactions.
The final iron oxide–gold composite nano-architectures containing an average of
55.13 weight percent gold demonstrate one’s ability to generate “hot-spot” nano-gap
junctions by a multi-seed-mediated approach.
S. E. H. Murph and E. Searles
Fig. 6 Comprehensive illustration of increased gold loading through seeded reaction method
presenting the weight percent loading capacity, energy-dispersive X-ray analysis (EDS) mapping
and scanning electron microscopy images. (Color figure online)
gradually increase gold decoration of the iron oxide without negatively impacting
the integrity of the iron oxide support.
UV-vis absorbance of each trial during the seeded reaction shows a more defined
plasmon band gold peak at 520 nm demonstrating a greater decoration on iron oxide
as shown in Fig. 7a. This increased gold loading on the iron oxide was confirmed
by analyzing the weight percent of elemental gold through the use of the energydispersive X-ray analysis (EDS). Figure 7b illustrates the tunability of gold loading,
namely “hot-spot” creation, through seeded reactions.
The final iron oxide–gold composite nano-architectures containing an average of
55.13 weight percent gold demonstrate one’s ability to generate “hot-spot” nano-gap
junctions by a multi-seed-mediated approach.