Purification and characterization of phthalocyanines |
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Authors: | Hans J Wagner Rafik O Loutfy Cheng-Kuo Hsiao |
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Affiliation: | (1) Xerox Research Centre of Canada, 2480 Dunwin Drive, L5L 1J9 Mississauga, Ontario, Canada |
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Abstract: | The technical details of a simple train sublimation (carrier gas) system for purification of organic materials are given and the refining procedure is described. A study of the effects of purification on metal free phthalocyanine (H2Pc), magnesium phthalocyanine (MgPc), copper phthalocyanine (CuPc), vanadyl phthalocyanine (VOPc), zinc phthalocyanine (ZnPc) and lead phthalocyanine (PbPc) was carried out by means of optical absorption, X-ray diffraction, electron paramagnetic resonance, sublimation behaviour and photovoltaic data. It was found that train sublimation improves the quality of the pigments considerably. Spectroscopic results indicate the presence of a second phase in the purified MgPc. |
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