Optical properties of Mn-doped CdS nanocrystals fabricated by sequential ion implantation
Optical properties of Mn-doped CdS nanocrystals fabricated by sequential ion implantation
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DOI：
10.1063/1.1494468
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发表时间：
2002-07-15
影响因子：
4
通讯作者：
White, CW
中科院分区：
文献类型：
--
作者：
Kanemitsu, Y;Matsubara, H;White, CW
研究了Cd+、S+和Mn+离子顺序注入Al_2 O_3基质制备的Mn掺杂CdS纳米晶的发光光谱和动力学。Mn掺杂CdS纳米晶在570 nm附近具有明显的Mn ~（2+）3d内跃迁的光致发光（PL）。Mn掺杂CdS纳米晶中Mn ~（2+）发光的PL激发谱与未掺杂CdS纳米晶的光吸收谱和PL激发谱相似。我们的光谱数据表明，离子束合成是制备掺杂半导体纳米晶体的方法之一。对Mn掺杂CdS纳米晶的发光机理进行了讨论。(C)2002年美国物理学会。
We have studied luminescence spectrum and dynamics of Mn-doped CdS nanocrystals fabricated by sequential Cd+, S+, and Mn+ ion implantation into Al2O3 matrices. The photoluminescence (PL) due to the Mn2+ intra-3d transition is clearly observed near 570 nm in Mn-doped CdS nanocrystals. The PL excitation spectrum of the Mn2+ luminescence in Mn-doped CdS nanocrystals is similar to the optical absorption spectrum and PL excitation spectrum of undoped CdS nanocrystals. Our spectroscopic data show that ion-beam synthesis is one of the methods of the fabrication of doped semiconductor nanocrystals. The luminescence mechanism of Mn-doped CdS nanocrystals will be discussed. (C) 2002 American Institute of Physics.