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The electronic states of unique molecule (Py-Per-Py), composed of two pyrene (Py1 and Py2) units, were investigated by using scanning tunneling microscopy and spectroscopy (STM/STS) at the liquid/solid interface. Bias-polarity-dependence of STM images of the Py1 and Per moieties were observed. STS results revealed that the apparent energy gaps for the Py1 and the Py2 were appreciably different due...
The organization of phthalocyanines into controlled structures is essential for their applications in electrical and optical molecular devices. Highly homogeneous bar-shaped phthalocyanine aggregates with large aspect ratios are obtained by tuning of alkyloxy substitutions. The layer-by-layer growth mechanism for both one-dimensional nanometer scale bar-shaped structures and two-dimensional films...
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