Abstract
Pure and Co-doped CdSe nanoparticles have been synthesized by hydrothermal technique. The synthesized nanoparticles have been characterized using X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV–Visible), photoluminescence spectroscopy (PL), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM) and superconducting quantum interference device (SQUID), at room temperature. From XRD analysis, pure and cobalt-doped CdSe nanoparticles have been found to be polycrystalline in nature and possess zinc blende phase having cubic structure. In addition to this, some peaks related to secondary phase or impurities such as cobalt diselenide (CoSe2) have also been observed. The calculated average crystallite size of the nanoparticles lies in the range, 3–21 nm, which is consistent with the results obtained from TEM analysis. The decrease in average crystallite size and blue shift in the band gap has been observed with Co-doping into the host CdSe nanoparticles. The magnetic analysis shows the ferromagnetic behaviour up to 10% of Co-doping concentration. The increase of Co content beyond 10% doping concentration leads to antiferromagnetic interactions between the Co ions, which suppress the ferromagnetism.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Archer P I, Santangelo S A and Gamelin D R 2007 Nano Lett. 7 1037
Bartholomew D U, Suh E-K, Ramdas A K and Rodriguez S 1989 Phys. Rev. B39 5865
Bawendi M G, Carroll P J, Wilson W L and Brus L E 1992 J. Chem. Phys. 96 946
Beaulac B R, Archer P I, Ochsenbein S T and Gamelin D R 2008 Adv. Funct. Mater. 18 3873
Bruchez Jr M, Moronne M, Gin P, Weiss S and Alivisatos A P 1998 Science 281 2013
Cullity B D 1978 The elements of X-ray diffraction (Reading, Massachusetts: Addison–Wesley) p. 102
Dietl T 2010 Nature Mater. 9 965
Ekimov A I et al 1993 J. Opt. Soc. Am. B10 100
Furdyna J K 1982 J. Appl. Phys. 53 7637
Furuseth S and Kjekshus A 1969 J. Acta Chem. Scand. 23 2325
Hamdani F, Lascaray J P, Coquillat D, Bhattacharjee A K, Nawrocki M and Golacki Z 1992 Phys. Rev. B45 13298
Hanif K M, Meulenberg R W and Strouse G F 2002 J. Am. Chem. Soc. 124 11495
Hasanzadeh J and Shayesteh S F 2011 Optica Applicata XLI 921
Hayashi A, Imada K, Inoue K, Ueda Y and Koji Kosuge K 1986 Bull. Inst. Chem. Res., Kyoto Univ. 64 186
Hays J, Punnoose A, Baldner R, Engelhard M H, Peloquin J and Reddy K M 2005 Phys. Rev. B72 075203
Ikeda H, Shirai M, Suzuki N and Motizuki K 1995 J. Magn. Mag. Mater. 140 159
Isber S, Christidis T, Tabbal M, Charar S and Goiran M 2001 Physica B293 304
Jin Y, Cui Q, Wang K, Hao J, Wang Q and Zhang J 2011 J. Appl. Phys. 109 053521
Ladizhansky V, Faraggi A, Lyahovitskaya V and Vega S 1997 Phys. Rev. B56 6712
Lewicki A, Schindler A I, Furdyna J K and Giriat W 1989 Phys. Rev. B40 2379
Limaye M V, Singh S B, Das R, Poddar P and Kulkarni S K 2011 J. Solid State Chem. 184 391
Meulenberg R W, Lee J R I, McCall S K, Hanif K M, Haskel D, Lang J C, Terminello L J and Buuren T V 2009 J. Am. Chem. Soc. 131 6888
Murray C B, Norris D J and Bawendi M G 1993 J. Am. Chem. Soc. 115 8706
Niu C-M, Kershaw R, Dwight K and Wold A 1989 J. Solid State Chem. 85 262
Pearton S J, Heo W H, Ivill M, Norton D P and Steiner T 2004 Semicond. Sci. Technol. 19 R59
Peng X, Wickham J and Alivisatos A P 1998 J. Am. Chem. Soc. 120 5343
Sambasivam S, Joseph D P, Lin J G and Venkateswaran C 2009 J. Solid State Chem. 182 2598
Santara B, Pal B and Giri P K 2011 J. Appl. Phys. 110 114322
Saravanan L, Pandurangan A and Jayavel R 2011 J. Nanopart. Res. 13 1621
Seehra M S et al 2008 Adv. Mater. 20 1656
Singh J and Verma N K 2012 J. Supercond. Nov. Magn. 25 2425
Singh S B, Limaye M V, Date S K and Kulkarni S K 2008 Chem. Phys. Lett. 464 208
Stroud R M, Hanbicki A T, Park Y D, Kioseoglou G, Petukhov A G and Jonker B T 2002 Phys. Rev. Lett. 89 166602
Sundaresan A and Rao C N R 2009 Nano Today 4 96
Toyosaki H, Fukumura T, Yamada Y, Nakajima K, Chikyow T, Hasegawa T, Koinuma H and Kawasaki M. 2004 Nature Mater. 3 221
Wang Q, Pan D, Jiang S, Ji X, An L and Jiang B 2006 J. Cryst. Growth 286 83
Williamson G K and Hall W H 1953 Acta Metall. 1 22
Xu X, Xu C, Dai J, Hu J, Li F and Zhang S 2012 J. Phys. Chem. C116 8813
Yu J H et al 2010 Nature Mater. 9 47
Zhang X, Zhang J, Zhao J, Pan B, Kong M, Chen J and Xie Y 2012 J. Am. Chem. Soc. 134 11908
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Singh, J., Verma, N.K. Structural, optical and magnetic properties of cobalt-doped CdSe nanoparticles. Bull Mater Sci 37, 541–547 (2014). https://doi.org/10.1007/s12034-014-0671-4
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12034-014-0671-4