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Layer‐By‐Layer Deposition and Ordering of Low‐Molecular‐Weight Dye Molecules for Second‐Order Nonlinear Optics
Author(s) -
Van Cott Kevin E.,
Guzy Matthew,
Neyman Patrick,
Brands Charles,
Heflin J. R.,
Gibson Harry W.,
Davis Richey M.
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20020902)41:17<3236::aid-anie3236>3.0.co;2-x
Subject(s) - chromophore , deposition (geology) , layer by layer , atomic layer deposition , layer (electronics) , nonlinear optics , covalent bond , second harmonic generation , molecule , materials science , quartz , nonlinear optical , chemical physics , nanotechnology , nonlinear system , chemistry , optics , photochemistry , organic chemistry , composite material , physics , quantum mechanics , paleontology , laser , sediment , biology
A combination of electrostatic interactions and covalent bonding is used to form films with low‐molecular‐weight chromophores by a layer‐by‐layer deposition process. Using a common, commercially available red dye, this deposition process results in noncentrosymmetric films (see scheme) that exhibit second‐harmonic generation (red→green), with χ (2) values as large as 11.3×10 −9 esu, that is, six times that of quartz.