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(Color online) Typical AFM image of the DNA network structure of poly(dA)–poly(dT). The scan area is .
Photoemission spectra of poly(dA)–poly(dT). Top: film sample. Bottom: network sample. The dashed curves are the film (shifted) and substrate spectra and their superposition. The solid curves are raw data.
Schematic band diagram of poly(dA)–poly(dT) DNA on the substrate.
Comparison of the theoretical DOS (solid curves) and the photoemission spectra (dashed curves) of poly(dA)–poly(dT). The hatched area corresponds to the unoccupied part of the calculated DOS.
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