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Vectorial Diffusion for Facile Solution‐Processed Self‐Assembly of Insoluble Semiconductors: A Case Study on Metal Phthalocyanines
Author(s) -
Wang Chengliang,
Fang Yaoguo,
Wen Liaoyong,
Zhou Min,
Xu Yang,
Zhao Huaping,
De Cola Luisa,
Hu Wenping,
Lei Yong
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201403702
Subject(s) - semiconductor , diffusion , yield (engineering) , materials science , solvent , organic semiconductor , phase (matter) , metal , process (computing) , nanotechnology , chemical physics , chemical engineering , chemistry , optoelectronics , organic chemistry , computer science , thermodynamics , physics , composite material , metallurgy , engineering , operating system
Solution processibility is one of the most intriguing properties of organic semiconductors. However, it is difficult to find a suitable solvent and solution process for most semiconductors. For example, metal phthalocyanines (MPcs) are only soluble in non‐volatile solvents, which prevent their applications from solution process. For the first time, vectorial diffusion is utilized for solution processing of MPcs. The obtained large F 16 CuPc and α‐phase CuPc crystals and the efficient phase separation of them suggest the vectorial diffusion process is as slow as a self‐assembly process, which is helpful to yield large crystals and purify the semiconductors. This method, which only uses common commercial solvents without any complex and expensive instruments and high‐temperature operation, provides a facile approach for purification of organic semiconductors and growth of their crystals in large quantities.