Evidence of Cd1-xMnxS nanocrystal growth in a glass matrix by the fusion method

被引：52

作者：

Dantas, N. O. ^{[1
]}

Neto, E. S. F. ^{[1
]}

Silva, R. S. ^{[1
]}

Jesus, D. R. ^{[2
]}

Pelegrini, F. ^{[2
]}

机构：

[1] Univ Fed Uberlandia, LNMIS, BR-38400902 Uberlandia, MG, Brazil

[2] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 19期

关键词：

atomic force microscopy; cadmium compounds; hyperfine interactions; II-VI semiconductors; manganese; nanostructured materials; nanotechnology; paramagnetic resonance; semiconductor growth; spectral line shift;

D O I：

10.1063/1.3027471

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, CdS nanocrystals (NCs) doped with Mn were synthesized in a glass matrix by fusion. The as-grown Cd1-xMnxS NCs were investigated by optical absorption, atomic force microscopy, and electron paramagnetic resonance (EPR). The incorporation of Mn2+ ions in CdS NCs was confirmed by an absorption transition blueshift with increasing Mn concentration x. EPR spectra demonstrated the existence of two distinct Mn2+ ion locations: one incorporated in the core and the other near the surface of the Cd1-xMnxS NCs. The hyperfine interaction constants used to simulate the EPR spectra were A=7.6 and 8.2 mT, respectively. The synthesis of high quality Cd1-xMnxS NCs may allow the control of optical and magnetic properties.

引用

页数：3

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