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Columnar Mesophases with 3D Order from New Functional Nonconventional Star‐Shaped Mesogens
Author(s) -
Lehmann Matthias,
Jahr Michael,
Grozema Ferdinand C.,
Abellon Ruben D.,
Siebbeles Laurens D. A.,
Müller Martin
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200800852
Subject(s) - chromophore , naphthalene , materials science , liquid crystal , star (game theory) , order (exchange) , space (punctuation) , crystallography , mesophase , nanotechnology , organic chemistry , computer science , optoelectronics , physics , chemistry , astrophysics , finance , economics , operating system
Star‐shaped oligobenzoates with naphthalene chromophores assemble in columnar mesophases. In the low‐temperature phases, mesogens self‐organize helically along the columns, leading to columnar liquid crystal phases with 3D order (see image). The formation of these structures is driven by optimization of space‐filling and nanosegregation. Naphthalene chromophores are segregated in the center of the columns and operate as hopping sites for charges.