Ultrafast energy transfer of silver ultrafine particles in aqueous solutions as investigated by the ultrafast lensing effect technique

被引：15

作者：

Ito, K

Tsuyumoto, I

Harata, A

Sawada, T

机构：

[1] Univ Tokyo, Sch English, Dept Appl Chem, Tokyo 1138656, Japan

[2] Kanazawa Inst Technol, Fac Engn, Dept Environm Syst Engn, Nonoichi, Ishikawa 9218501, Japan

[3] Kyushu Univ, Grad Sch Engn Sci, Dept Mol & Mat Sci, Fukuoka 8168580, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 318卷 / 1-3期

关键词：

D O I：

10.1016/S0009-2614(99)01439-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ultrafast relaxation dynamics of silver ultrafine particles in aqueous solutions was measured by an ultrafast lensing effect (ULE) method using two types of samples with SDS (sodium dodecyl sulfate) and without SDS. The fit to the ULE time evolution required three exponential components: one for the increase and two others for the decrease. The time constants were estimated as 1, 3, 7 ps for the sample without SDS and as I, 2, and 23 ps for the sample with SDS. The ultrafast relaxation dynamics was discussed in connection with the behavior of photoexcited electrons. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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