文章基本信息
- 标题：色素J凝集体の光機能発現に及ぼすヘテロ原子の効果 (5)
- 本地全文：下载
- 作者：山口 敦 ; 米谷 紀嗣 ; 米澤 義朗 等
- 期刊名称：日本写真学会誌
- 印刷版ISSN：0369-5662
- 电子版ISSN：1884-5932
- 出版年度：2004
- 卷号：67
- 期号：Suppliment2
- 页码：46-47
- DOI：10.11454/photogrst1964.67.Suppliment2_46
- 出版社：The Society of Photographic Science and Technolgy of Japan
- 摘要：
Delocalization and energy transfer of the molecular exciton of the J-aggregate of oxacyanine dye, N, N'-dioctadecyl-oxacyanine perchlorate (S9) in LB films have been examined. Fluorescence lifetime of the S9 J-aggregate (S9 (J)) appears to be ca. 1 / 20 of the isolated S9 molecules (S9 (M)), which suggests that the coherent size of the J-aggregate, Ncohe, is about 22 at room temperature. Quenching of resonance fluorescence of S9 (J) by thiacyanine dye, N, N'-dioctadecyl-thiacyanine perchlorate (S11) obeys the Stern-Volmer relation with a Stern-Volmer constant of 1.2×103nm2 molecules-1 at room temperature, which is responsible to the incoherent size Ninco of about 2000. The rate constant of energy transfer kET amounts to 1.5×1013nm2 molecules-1s-1.
