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Nanocontrolled Bending of Discotic Columns by Spiral Networks
Author(s) -
Mouthuy PierreOlivier,
Melinte Sorin,
Geerts Yves Henri,
Nysten Bernard,
Jonas Alain Marie
Publication year - 2008
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200700939
Subject(s) - mesoscopic physics , spiral (railway) , bending , materials science , discotic liquid crystal , tension (geology) , anisotropy , optics , micrometer , composite material , physics , optoelectronics , liquid crystal , mechanical engineering , ultimate tensile strength , condensed matter physics , engineering
The anisotropic interfacial tension of discotic phthalocyanines is used to produce intentionally curved columns. When phthalocyanines are confined in a mesoscopic spiral network of nanogrooves (see figure), the alignment of the discotic columns follows the tangential direction down to the micrometer scale. Energetic aspects of the alignment process are discussed and the bending modulus of the columns is determined.