Femtosecond depolarization dynamics of tris(8-hydroxyquinoline) aluminum films

被引：5

作者：

Ogawa, N. ^{[1
,2
]}

Miyata, A. ^{[3
]}

Tamaru, H. ^{[1
,4
]}

Suzuki, T. ^{[5
]}

Shimada, T. ^{[5
]}

Hasegawa, T. ^{[5
]}

Saiki, K. ^{[5
,6
]}

Miyano, K. ^{[1
,2
]}

机构：

[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan

[2] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

[3] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[4] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

[5] Univ Tokyo, Dept Chem, Bunkyo Ku, Tokyo 1138656, Japan

[6] Univ Tokyo, Dept Complex Sci & Engn, Kashiwa, Chiba 2778561, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 450卷 / 4-6期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/j.cplett.2007.11.013

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：

For vapor-deposited tris(8-hydroxyquinoline) aluminum thin films, steady-state and subpicosecond transient optical anisotropy are investigated. It is found that the transient absorption anisotropy decays within tens of picoseconds. With a simple model calculation, the excited state population and anisotropy decay dynamics are disentangled, and the latter signal, the depolarization of the excited state, is explained by the energy transfer between the non-orthogonally-coordinated quinolate ligands. It is also shown that there are two pathways for this fast interligand energy transfer. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：335 / 339

页数：5

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