Size-dependent picosecond energy relaxation in PbSe quantum dots

被引：34

作者：

Okuno, T ^{[1
]}

Masumoto, Y

Ikezawa, M

Ogawa, T

Lipovskii, AA

机构：

[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan

[2] St Petersburg State Tech Univ, St Petersburg 195251, Russia

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 04期

关键词：

D O I：

10.1063/1.127025

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We measured the size dependence of the energy relaxation time of PbSe quantum dots at room temperature. The radius of the dots was evaluated by small-angle x-ray scattering. We found a monotonic decrease of the relaxation time from 25 to 1 ps with a decrease of the radius r from 2.9 to 1.4 nm. The 1/r(3) dependence of the relaxation rate was indicated. (C) 2000 American Institute of Physics. [S0003- 6951(00)00230-8].

引用

页码：504 / 506

页数：3

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