Laser-induced self-assembly of rseudoisocyanine J-aggregates

Yoshito Tanaka, Hiroyuki Yoshikawa*, Hiroshi Masuhara

*此作品的通信作者

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

This letter describes that the appearance and growth of J-aggregate are clearly accelerated by focusing a near-infrared laser beam into an aqueous solution of psudoisocyanine while gradually increasing the concentration by solvent evaporation. The J-aggregate formed in the laser focus shows a narrower fluorescence bandwidth compared to those obtained by simple concentration increase. This indicates that the growth of the highly ordered J-aggregates is preferentially enhanced in the laser focus, which is the first demonstration showing laser-induced self-assembly of psudoisocyanine J-aggregates. Furthermore, we discuss the mechanism of the laser-induced self-assembly on the basis of thermodynamic equilibrium between the in and out of optical trapping potential produced by the focused laser beam.

原文English
頁(從 - 到)18457-18460
頁數4
期刊Journal of Physical Chemistry C
111
發行號50
DOIs
出版狀態Published - 20 十二月 2007

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