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. Author manuscript; available in PMC: 2020 May 13.
Published in final edited form as: ACS Mater Lett. 2019 Dec 3;2(1):76–83. doi: 10.1021/acsmaterialslett.9b00438

Figure 2.

Figure 2.

Chemical lift-off lithography (CLL) of coinage metal (Pt, Pd, Ag, Cu) surfaces. Metals are ordered in terms of increasing reactivity from left to right. (A-D) Representative scanning electron microscopy images of patterned self-assembled monolayers (SAMs) of 11-mercapto-1-undecanol (MUO) on metal surfaces after CLL. Monolayers were patterned such that MUO molecules remained in the “CNSI” letter regions and in the regions surrounding the “UCLA” letters. (E-H) Representative optical microscopy images of metal surfaces after chemical wet etching using the patterned SAMs as molecular resists.