Enhancement of a Two-Photon-Induced Reaction in Solution Using Light-Harvesting Gold Nanodimer Structures
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- 作者：Botao Wu ; Kosei Ueno ; Yukie Yokota ; Kai Sun ; Heping Zeng ; Hiroaki Misawa
- 刊名：The Journal of Physical Chemistry Letters
- 出版年：2012
- 出版时间：June 7, 2012
- 年：2012
- 卷：3
- 期：11
- 页码：1443-1447
- 全文大小：304K
- 年卷期：v.3,no.11(June 7, 2012)
- ISSN：1948-7185
文摘
We performed a quantitative analysis of plasmon-assisted two-photon photochromic reactions on light-harvesting gold nanodimer structures. Our strategy for the quantitative analysis of two-photon-induced photochemical reactions on gold nanostructures is using not only a confined photochemical reaction chamber but also a solution system. The strong intensification of near-field light at the nanogap positions on gold nanodimer pairs promoted two-photon absorption by a closed-form diarylethene derivative, resulting in highly efficient photochromic conversion to the open-form structure.