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Nano vanadyl‐phthalocyanine crystals fabricated on KBr substrate
Author(s) -
Mototani Suguru,
Ochiai Shizuyasu,
Ohashi Asao,
Kojima Kenzo,
Mizutani Teruyoshi
Publication year - 2008
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20645
Subject(s) - epitaxy , phthalocyanine , materials science , nano , molecular beam epitaxy , substrate (aquarium) , annealing (glass) , thin film , molecule , optoelectronics , nanotechnology , chemistry , composite material , organic chemistry , oceanography , layer (electronics) , geology
Vanadyl‐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