Non-linear optical effects in layer-by-layer alternate films of polycations and an azobenzene-containing polyanion

Yuri Lvov; Sunao Yamada; Toyoki Kunitake

doi:10.1016/S0040-6090(96)09494-1

Non-linear optical effects in layer-by-layer alternate films of polycations and an azobenzene-containing polyanion

Yuri Lvov, Sunao Yamada, Toyoki Kunitake

Institute for Advanced Study

Research output: Contribution to journal › Article › peer-review

179 Citations (Scopus)

Abstract

The technique of polycation/polyanion layer-by-layer adsorption was applied to fabrication of non-linear optical films. Optical second-harmonic generation (SHG) was clearly observed from the films prepared by alternate adsorption of polycations and an azobenzene-containing polyanion (PAZO) on quartz substrate modified with polyion precursor. Regular film growth during adsorption cycles was proved by means of UV spectroscopy and quartz crystal microbalance technique. The SHG signal increased with the number of PAZO layers up to four layers, while further assembly reduced the signal. The SHG decreased considerably by heating the film up to 120°C.

Original language	English
Pages (from-to)	107-112
Number of pages	6
Journal	Thin Solid Films
Volume	300
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6090(96)09494-1
Publication status	Published - May 28 1997

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/S0040-6090(96)09494-1

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title = "Non-linear optical effects in layer-by-layer alternate films of polycations and an azobenzene-containing polyanion",

abstract = "The technique of polycation/polyanion layer-by-layer adsorption was applied to fabrication of non-linear optical films. Optical second-harmonic generation (SHG) was clearly observed from the films prepared by alternate adsorption of polycations and an azobenzene-containing polyanion (PAZO) on quartz substrate modified with polyion precursor. Regular film growth during adsorption cycles was proved by means of UV spectroscopy and quartz crystal microbalance technique. The SHG signal increased with the number of PAZO layers up to four layers, while further assembly reduced the signal. The SHG decreased considerably by heating the film up to 120°C.",

author = "Yuri Lvov and Sunao Yamada and Toyoki Kunitake",

note = "Funding Information: The authors would like to thank Prof. T. Matsuo and Mr M. Ayukawa of Kyushu University and Dr K. Ariga (Supermolecule Project, JRDC) for their cooperation. The present study was partially supported by the NEDO Foundation from the Ministry of International Trade and Industry.",

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T1 - Non-linear optical effects in layer-by-layer alternate films of polycations and an azobenzene-containing polyanion

AU - Lvov, Yuri

AU - Yamada, Sunao

AU - Kunitake, Toyoki

N1 - Funding Information: The authors would like to thank Prof. T. Matsuo and Mr M. Ayukawa of Kyushu University and Dr K. Ariga (Supermolecule Project, JRDC) for their cooperation. The present study was partially supported by the NEDO Foundation from the Ministry of International Trade and Industry.

PY - 1997/5/28

Y1 - 1997/5/28

N2 - The technique of polycation/polyanion layer-by-layer adsorption was applied to fabrication of non-linear optical films. Optical second-harmonic generation (SHG) was clearly observed from the films prepared by alternate adsorption of polycations and an azobenzene-containing polyanion (PAZO) on quartz substrate modified with polyion precursor. Regular film growth during adsorption cycles was proved by means of UV spectroscopy and quartz crystal microbalance technique. The SHG signal increased with the number of PAZO layers up to four layers, while further assembly reduced the signal. The SHG decreased considerably by heating the film up to 120°C.

AB - The technique of polycation/polyanion layer-by-layer adsorption was applied to fabrication of non-linear optical films. Optical second-harmonic generation (SHG) was clearly observed from the films prepared by alternate adsorption of polycations and an azobenzene-containing polyanion (PAZO) on quartz substrate modified with polyion precursor. Regular film growth during adsorption cycles was proved by means of UV spectroscopy and quartz crystal microbalance technique. The SHG signal increased with the number of PAZO layers up to four layers, while further assembly reduced the signal. The SHG decreased considerably by heating the film up to 120°C.

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Non-linear optical effects in layer-by-layer alternate films of polycations and an azobenzene-containing polyanion

Abstract

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