TY - JOUR
T1 - Nanoscale control of layer thickness for EL devices by mass-controlled layer-by-layer sequential adsorption process
AU - Shiratori, Seimei
AU - Yamada, Masayoshi
AU - Ito, Takahiro
AU - Wang, Tom C.
AU - Rubner, Michael F.
N1 - Funding Information:
A part of this work is supported by the financial aid from Kurata Science Foundation (1998), Tokyo Electric Power Company (1999), Fukuzawa foundation from Keio University(1999) and from the departemt of applied physics and physico-informatics, Keio University (1999). The authors also thank Nippon Laser Electric Lab. for the fabrication of the mass controlled automatic dipping system for the layer-by-layer sequential adsorption process.
Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2000
Y1 - 2000
N2 - A mass controlled layer-by-layer sequential adsorption process for polyelectrolytes was newly developed for the fabrication of functional devices using ultra-thin organic film formed by various polymers of different polarity of charge. In this study hydrophobic Ruthenium complex monomer (tris(bipyridyl) ruthenium(II) hexafluorophosphate) was micelle-wrapped with an anionic surfactant, sodium dodecylbenzenesulfonate, and was assembled with PAH (poly (allylamine hydrochloride)), which has the opposite charge, on ITO substrates. With this method, we succeeded in fabricating ultra-thin organic films even when the adsorption material is not polymer but monomer. Moreover it was found that the film thickness of the self-assembled Ru micelle/PAH had a linear relationship with the number of bilayers. By using this process, an EL device was fabricated by depositing the thin film of micelle-wrapping ruthenium complex monomer on ITO and metal electrode on top of the film. Light emission was observed by applying voltage to this device.
AB - A mass controlled layer-by-layer sequential adsorption process for polyelectrolytes was newly developed for the fabrication of functional devices using ultra-thin organic film formed by various polymers of different polarity of charge. In this study hydrophobic Ruthenium complex monomer (tris(bipyridyl) ruthenium(II) hexafluorophosphate) was micelle-wrapped with an anionic surfactant, sodium dodecylbenzenesulfonate, and was assembled with PAH (poly (allylamine hydrochloride)), which has the opposite charge, on ITO substrates. With this method, we succeeded in fabricating ultra-thin organic films even when the adsorption material is not polymer but monomer. Moreover it was found that the film thickness of the self-assembled Ru micelle/PAH had a linear relationship with the number of bilayers. By using this process, an EL device was fabricated by depositing the thin film of micelle-wrapping ruthenium complex monomer on ITO and metal electrode on top of the film. Light emission was observed by applying voltage to this device.
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M3 - Conference article
AN - SCOPUS:0034504743
SN - 0272-9172
VL - 598
SP - BB1.9.1-BB1.9.6
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
T2 - Electrical, Optical, and Magnetic Properties of Organic Solid-State Materials V
Y2 - 29 November 2000 through 3 December 2000
ER -