Abstract

AbstractVanadyl‐phthalocyanine (VOPc) thin films deposited on a KBr substrate by molecular beam epitaxy (MBE) consist of nano‐VOPc crystals epitaxially grown. The nano‐VOPc crystals acquire a square shape as a result of annealing at 150°C. The size of the nano‐crystals is controllable by changing the conditions of MBE deposition and thermal treatment. The growth processes of nano‐crystals on the KBr substrate are elucidated experimentally and are shown to be closely related to strong interaction between the VOPc molecules and the KBr substrate. Their mechanisms can be explained in terms of surface diffusion of the VOPc molecules on the KBr substrate. © 2008 Wiley Periodicals, Inc. Electr Eng Jpn, 163(2): 41–48, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20645

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