Page 105 - Organic Electronics in Sensors and Biotechnology
P. 105
82 Cha pte r T w o
Pristine Au-NPs
(a)
Annealed
(1 h @ 200°C)
(b)
Bulk Au
(c)
91 90 89 88 87 86 85 84 83 82 81
Binding energy (eV)
FIGURE 2.11 High-resolution Au4f XPS of (a) pristine and (b) annealed
Au-NPs, stabilized by TOAC. (c) The same region, recorded in case of a bulk
gold sample, is reported for comparison.
FIGURE 2.12 Sketch of the changes induced on Au-NPs by thermal annealing.
