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Plasmon-Resonant Optics on an Indium-Tin-Oxide Film for Exciting a Two-Photon Photochromic Reaction

Authors :
Ochiai, Takao
Isozaki, Katsuhiro
Pincella, Francesca
Taguchi, Tomoya
Nittoh, Koh-ichi
Miki, Kazushi
Source :
Applied Physics Express (APEX); October 2013, Vol. 6 Issue: 10 p102001-102001, 1p
Publication Year :
2013

Abstract

Two-dimensional arrays of gold nanoparticles (AuNPs) as localized surface plasmon-resonant (LSPR) optics on a transparent conductive layer of indium-tin-oxide (ITO) were successfully fabricated. The typical surface coverage of the 10 nm sized AuNPs is over 87% for on ITO film roughness of ±0.2 nm. The LSPR wavelength is tunable in the range of 622-905 nm. By adjusting the LSPR wavelength to 905 nm at peak, two-photon photochromic reaction of diarylethene derivative in solution phase was demonstrated with irradiation by an incoherent near-infrared light in the range of 0.017-0.033 W/cm2instead of a laser, thanks to the AuNP two-dimensional array.

Details

Language :
English
ISSN :
18820778 and 18820786
Volume :
6
Issue :
10
Database :
Supplemental Index
Journal :
Applied Physics Express (APEX)
Publication Type :
Periodical
Accession number :
ejs31270459
Full Text :
https://doi.org/10.7567/APEX.6.102001