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Nanometer-scale structural, tribological, and optical properties of ultrathin poly(diacetylene) films

Sasaki, Darryl Y.; Burns, A.R.

High-quality ultrathin poly(diacetylene) (PDA) films were produced by using a horizontal Langmuir deposition technique. The resultant films exhibit strong friction anisotropy that is correlated with the direction of the polymer backbone structure. Shear forces applied by atomic force microscopy (AFM) or near field scanning optical microscope (NSOM) tips locally induced the blue-to-red chromatic transition in the PDA films.