AFM height images (2 × 2 μm2) of the surfaces of gold deposits obtained by PLD at 213 nm and 2 J/cm2 after: (a) 3000, (b) 6000, (c) 12 000, (d) 18 000, (e) 24 000, and (f) 144 000 pulses.
XRD patterns of gold target and deposit grown by PLD at 213 nm and 2 J/cm2 with 144 000 pulses.
(a) AFM topography image (1 × 1 μm2) of a gold film deposited by PLD at 213 nm and 2 J/cm2 with 144 000 pulses on the cantilever array surface. The region selected in (a) by a white square is displayed in (b) in a 3D representation.
Deflection of two gold-coated cantilevers as a function of temperature. The symbols (squares for cantilever 1 and circles for cantilever 2) represent experimental data and the lines correspond to linear fittings. The deflection of the micromechanical sensors was measured with respect to the deflection at the initial experimental temperature (22 °C). The temperature was changed at a rate of about 0.14 °C per minute.
Surface stress variation during a hydration cycle for five cantilevers of one gold-coated micromechanical sensor, after gold coating with PLD (squares) and after DNA hybridization (circles). The surface stress variations were measured with respect to the surface stress at RH 0%. RH was changed at a rate of about 1% per minute.
Thickness and roughness (Ra ) of the gold deposits prepared by PLD at the different irradiation conditions.
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