Space-resolved photoluminescence of ZnS:Cu,Al nanocrystals fabricated by sequential ion implantation

被引：45

作者：

Ishizumi, A

White, CW

Kanemitsu, Y

机构：

[1] Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300192, Japan

[2] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 13期

关键词：

D O I：

10.1063/1.1689738

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on photoluminescence (PL) properties of Cu- and Al-doped ZnS nanocrystals fabricated by sequential implantation of. Zn(+), S(+), Cu(+), and Al(+) ions into Al(2)O(3) matrices. The spatially resolved PL spectrum has been studied by a scanning near-field optical microscope (SNOM). In the SNOM image, bright spots are observed on the sample surface. The PL spectrum at each bright spot is broad and is not sensitive to the. monitored positions. The broad SNOM-PL spectrum at each spot is very, similar. to the macroscopic. PL spectrum measured by conventional optics. The donor-acceptor pair luminescence process in nanocrystals is discussed. (C) 2004 American Institute of Physics.

引用

页码：2397 / 2399

页数：3

共 19 条

[1] Sharp photoluminescence of CdS nanocrystals in Al2O3 matrices formed by sequential ion implantation [J].