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Proceedings Paper

Molecular structure and EL application of highly ordered DNA/Ru complex
Author(s): Norihisa Kobayashi; Kazuki Matsumoto; Shintarou Inoue
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Paper Abstract

DNA-Ru(bpy)32+ complex was prepared to study molecular structure and its EL characteristics. Ru(bpy)32+ was associated with duplex of DNA by not only electrostatic interaction but also intercalation in the aqueous solution. Single-molecular structure of DNA-Ru(bpy)32+ complex was analyzed with AFM. We found network structure of DNA-Ru(bpy)32+ complex on the mica substrate, which is similar to naked DNA. The height of DNA-Ru(bpy)32+ complex on the mica substrate was ranging from 0.8 to 1.6 nm, which was higher than the naked DNA (0.5-1.0 nm). This indicates that single-molecular DNA-Ru(bpy)32+ complex forms network structure on the mica substrate. DNA-Ru(bpy)32+ complex was sandwiched with ITO and aluminum electrodes to analyze EL properties. It was revealed that the EL device composed of DNA- Ru(bpy)32+ complex exhibited extremely faster response than the other Ru(bpy)32+ based EL devices. The emission mechanism was discussed.

Paper Details

Date Published: 9 September 2008
PDF: 8 pages
Proc. SPIE 7040, Nanobiosystems: Processing, Characterization, and Applications, 70400K (9 September 2008); doi: 10.1117/12.801476
Show Author Affiliations
Norihisa Kobayashi, Chiba Univ. (Japan)
Kazuki Matsumoto, Chiba Univ. (Japan)
Shintarou Inoue, Chiba Univ. (Japan)


Published in SPIE Proceedings Vol. 7040:
Nanobiosystems: Processing, Characterization, and Applications
Emily M. Heckman; Thokchom Birendra Singh; Junichi Yoshida, Editor(s)

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