5504
Langmuir 1996, 12, 5504
Additions and Corrections Using Two-Stage Chemical Amplification To Determine the Density of Defects in Self-Assembled Monolayers of Alkanethiolates on Gold Xiao-Mei Zhao, James L. Wilbur, and George M. Whitesides* Langmuir 1996, 12 (13), 3257-3264. Table 2 on page 3260 was published with a missing column. The corrected Table 2 is as follows. Table 2. Densities of Pits in HDT-Protected Gold Surfaces (20 nm thick) as a Function of the Composition of the Ferricyanide Solution Used To Etch These Surfacesa etching density [FeIII]/ [Fe(CN)63-] [Fe(CN)64-] [K2S2O3] [KOH] time of pits II [Fe ] (M) (M) (M) (M) (min) (pits/mm2) ∞ 50/1 10/1 1/1 1/10 10/1 10/1 10/1 10/1
0.01 0.01 0.01 0.01 0.01 0.001 0.1 0.01 0.01
0 0.0002 0.001 0.01 0.1 0.0001 0.01 0.001 0.001
0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.01 0.1
1 1 1 1 1 1 1 1 0.5
7 7 7 7 7 7 7 10 9.5
210 200 90 550 650 90 90 90 90
a SAMs were prepared by immersing fresh gold substrates (Au 20 nm/Cr 5 nm) in fresh neat HDT for 24 h at 30 °C. All samples were etched at 25 °C. The experiments were performed in a class100 clean room.
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© 1996 American Chemical Society
