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3D patterning by means of probe‐assisted thermal decomposition has been achieved on phthalaldehyde polymer films with 1 nm vertical resolution and 40 nm lateral resolution. Highly efficient patterning is enabled by a self‐amplified depolymerization mechanism. Pixel writing speeds on the order of microseconds are demonstrated.
Using a heated probe tip a 3D relief replica of the world map with feature sizes as small as 40 nm has been created in a 250 nm thick phthalaldehyde polymer film. The relief structures are created by local evaporation of the polymeric material which decomposes spontaneously into its monomer units upon applying a heat stimulus of microsecond duration. The work, reported on p. 3361 by Armin Knoll, Urs...
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