TY - JOUR
T1 - Rational design, synthesis, and characterization of chromophoric supermolecular self-assembled multilayer thin films having very large optical nonlinearities
AU - Li, De Quan
AU - Marks, Tobin J.
AU - Zhang, Tongguang
AU - Wong, George K.
N1 - Funding Information:
ACKNOWLEDGEMENTS This research was supported by the NSF-MRL program through the Materials Research Center of Northwestern University (Grant DMR8821571) and by the Air Force Office of Scientific Research (Contracts 86-0105 and 90-0071).
PY - 1991/6/7
Y1 - 1991/6/7
N2 - A method for preparing organized, highly aligned, multifunctional donor-acceptor covalently bonded self-assemblies on silica surfaces is described. Using the organosilane coupling reagent, I3Si(CH2)2C6H4CH2I (Cp), the high-β chromophore, 4-[N,N-bis(3-hydroxypropyl)amino]styryl-4′-pyridine (Ch) can be easily linked to surfaces via quaternization. Additional chromophore layer can be built up in this manner using chlorosilane/polyvinylalcohol as an intervening structural layer. These multilayer structures have been characterized by FTIR-ATR, UV-vis spectroscopy, advancing contact angle, and second harmonic generation measurements. The studies of NLO properties reveal good structural uniformity and second order susceptibilities χzzz(2) as high as 6 × 10-7 esu for a single CpCh monolayer and 2 × 10-7 esu for multilayer superlattices (λ = 1064 nm).
AB - A method for preparing organized, highly aligned, multifunctional donor-acceptor covalently bonded self-assemblies on silica surfaces is described. Using the organosilane coupling reagent, I3Si(CH2)2C6H4CH2I (Cp), the high-β chromophore, 4-[N,N-bis(3-hydroxypropyl)amino]styryl-4′-pyridine (Ch) can be easily linked to surfaces via quaternization. Additional chromophore layer can be built up in this manner using chlorosilane/polyvinylalcohol as an intervening structural layer. These multilayer structures have been characterized by FTIR-ATR, UV-vis spectroscopy, advancing contact angle, and second harmonic generation measurements. The studies of NLO properties reveal good structural uniformity and second order susceptibilities χzzz(2) as high as 6 × 10-7 esu for a single CpCh monolayer and 2 × 10-7 esu for multilayer superlattices (λ = 1064 nm).
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U2 - 10.1016/0379-6779(91)91254-8
DO - 10.1016/0379-6779(91)91254-8
M3 - Article
AN - SCOPUS:0026418728
VL - 43
SP - 3157
EP - 3162
JO - Synthetic Metals
JF - Synthetic Metals
SN - 0379-6779
IS - 1-2
ER -