Magnetic and optical characterization of Mn-doped PbS nanocrystals supported in oxide glass matrix

被引:18
作者
Silva, R. S. [1 ,3 ]
Morais, P. C. [1 ]
Sullasi, H. S. L. [2 ,4 ]
Ayta, W. E. F. [2 ]
Qu, Fanyao [3 ]
Dantas, N. O. [3 ]
机构
[1] Univ Brasilia, Inst Fis, BR-70910900 Brasilia, DF, Brazil
[2] Univ Sao Paulo, Inst Fis, Dept Fis Nucl, BR-05508090 Sao Paulo, Brazil
[3] Univ Fed Uberlandia, Inst Fis, LNMIS, BR-38400902 Uberlandia, MG, Brazil
[4] Fac Tecnol Sao Paulo FATEC SP, BR-01124060 Sao Paulo, Brazil
关键词
Pb1-xMnxS nanocrystal; Fusion method; optical absorption; Electron paramagnetic resonance; QUANTUM DOTS; PHOTOLUMINESCENCE; SEMICONDUCTORS; NANOPARTICLES;
D O I
10.1016/j.jallcom.2008.11.033
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
The evidence of successful growth of Mn-doped PbS (Pb1-xMnxS) nanocrystals (NCs) in SiO2-Na2CO3-Al2O3-PbO2-B2O3 template, using the fusion method, is reported on in this study. The as-grown Pb1-xMnxS NC is characterized using optical absorption, electron paramagnetic resonance, and atomic force microscopy. The data are discussed in terms of two distinct scenarios, namely a core-doped and a shell-doped nanostructure. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:204 / 206
页数:3
相关论文
共 15 条
[1]   Effect of Mn2+ concentration in ZnS nanoparticles on photoluminescence and electron-spin-resonance spectra [J].
Borse, PH ;
Srinivas, D ;
Shinde, RF ;
Date, SK ;
Vogel, W ;
Kulkarni, SK .
PHYSICAL REVIEW B, 1999, 60 (12) :8659-8664
[2]   Anti-Stokes photoluminescence in nanocrystal quantum dots [J].
Dantas, NO ;
Qu, FY ;
Silva, RS ;
Morais, PC .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (30) :7453-7457
[3]   Doping semiconductor nanocrystals [J].
Erwin, SC ;
Zu, LJ ;
Haftel, MI ;
Efros, AL ;
Kennedy, TA ;
Norris, DJ .
NATURE, 2005, 436 (7047) :91-94
[4]   DILUTED MAGNETIC SEMICONDUCTORS [J].
FURDYNA, JK .
JOURNAL OF APPLIED PHYSICS, 1988, 64 (04) :R29-R64
[5]   Magnetic properties of nanocrystalline Pb1-xMnxSe [J].
Ji, TH ;
Jian, WB ;
Fang, JY ;
Tang, JK ;
Golub, V ;
Spinu, L .
IEEE TRANSACTIONS ON MAGNETICS, 2003, 39 (05) :2791-2793
[6]   Quantum-size-effect-enhanced dynamic magnetic interactions among doped spins in Cd1-xMnxSe nanocrystals [J].
Jian, WB ;
Fang, JY ;
Ji, TH ;
He, JB .
APPLIED PHYSICS LETTERS, 2003, 83 (16) :3377-3379
[7]  
Ohno H., 2002, JSAP International, P4
[8]   Making nonmagnetic semiconductors ferromagnetic [J].
Ohno, H .
SCIENCE, 1998, 281 (5379) :951-956
[9]  
QU PF, 2005, PHYS REV LETT, V95
[10]   Synthesis process controlled magnetic properties of Pb1-xMnxS nanocrystals [J].
Silva, R. S. ;
Morais, P. C. ;
Qu, Fanyao ;
Alcalde, A. M. ;
Dantas, N. O. ;
Sullasi, H. S. L. .
APPLIED PHYSICS LETTERS, 2007, 90 (25)