The effect of surfactants on the magnetic and optical properties of Co-doped SnO2 nanoparticles
作者： He Jiang , Xiao Fang Liu , Zhi Yu Zou , Zhang Ben Wu , Bo He
DOI: 10.1016/J.APSUSC.2011.08.037
关键词: Polaron 、 Ferromagnetism 、 Ferromagnetic material properties 、 Pulmonary surfactant 、 Inorganic chemistry 、 Dopant 、 XANES 、 Materials science 、 Adsorption 、 Nanoparticle 、 Chemical engineering 、 Surfaces, Coatings and Films
摘要: Abstract A series of Co-doped SnO2 nanoparticles have been synthesized by the co-precipitation route. Different amounts surfactant used in order to study effect surfactants (CTAB) on magnetic and optical properties. Structural analyses reveal that Co dopants are substituted into rutile without forming any secondary phase. The increase promotes adsorption organic molecules surfaces nanoparticles. Meanwhile, both ferromagnetism orange emission drop progressively. dependence ferromagnetic properties concentration could be explained based bound polaron, where carriers provided oxygen vacancies. XANES spectra electrons transfer from 3d bands ions. Such electron-transfer process suppresses formation vacancies leads decline emission.
harvard.edu
elsevier.com
sci-hub.se 参考文章(28)
Suhua Luo, Paul K Chu, Zengfeng Di, Miao Zhang, Weili Liu, Chenglu Lin, Jiyang Fan, Xinglong Wu, None, Vacuum electron field emission from SnO2 nanowhiskers annealed in N2 and O2 atmospheres Applied Physics Letters. ,vol. 88, pp. 013109- ,(2006) , 10.1063/1.2161573
Aditya Sharma, Abhinav Pratap Singh, P. Thakur, N. B. Brookes, Shalendra Kumar, Chan Gyu Lee, R. J. Choudhary, K. D. Verma, Ravi Kumar, Structural, electronic, and magnetic properties of Co doped SnO2 nanoparticles Journal of Applied Physics. ,vol. 107, pp. 093918- ,(2010) , 10.1063/1.3415541
J. G. Zhou, H. T. Fang, J. M. Maley, J. Y. P. Ko, M. Murphy, Y. Chu, R. Sammynaiken, T. K. Sham, An X-ray Absorption, Photoemission, and Raman Study of the Interaction between SnO2 Nanoparticle and Carbon Nanotube Journal of Physical Chemistry C. ,vol. 113, pp. 6114- 6117 ,(2009) , 10.1021/JP810639Y
Tao Yao, Wensheng Yan, Zhihu Sun, Zhiyun Pan, Bo He, Yong Jiang, He Wei, Masaharu Nomura, Yi Xie, Yaning Xie, Tiandou Hu, Shiqiang Wei, High-Temperature Ferromagnetism of Hybrid Nanostructure Ag−Zn0.92Co0.08O Dilute Magnetic Semiconductor Journal of Physical Chemistry C. ,vol. 113, pp. 3581- 3585 ,(2009) , 10.1021/JP809560S
Anshu Singhal, S. N. Achary, J. Manjanna, S. Chatterjee, P. Ayyub, A. K. Tyagi, Chemical Synthesis and Structural and Magnetic Properties of Dispersible Cobalt- and Nickel-Doped ZnO Nanocrystals Journal of Physical Chemistry C. ,vol. 114, pp. 3422- 3430 ,(2010) , 10.1021/JP9105579
Chaitanya Das Pemmaraju, S. Sanvito, Ferromagnetism driven by intrinsic point defects in HfO(2). Physical Review Letters. ,vol. 94, pp. 217205- ,(2005) , 10.1103/PHYSREVLETT.94.217205
K. Srinivas, M. Vithal, B. Sreedhar, M. Manivel Raja, P. Venugopal Reddy, Structural, Optical, and Magnetic Properties of Nanocrystalline Co Doped SnO2 Based Diluted Magnetic Semiconductors Journal of Physical Chemistry C. ,vol. 113, pp. 3543- 3552 ,(2009) , 10.1021/JP809146X
HT Chen, SJ Xiong, XL Wu, J Zhu, JC Shen, Paul K Chu, None, Tin oxide nanoribbons with vacancy structures in luminescence-sensitive oxygen sensing. Nano Letters. ,vol. 9, pp. 1926- 1931 ,(2009) , 10.1021/NL900075F
X.J. Liu, C. Song, P.Y. Yang, F. Zeng, F. Pan, Substrate orientation-induced distinct ferromagnetic moment in Co:ZnO films Applied Surface Science. ,vol. 254, pp. 3167- 3174 ,(2008) , 10.1016/J.APSUSC.2007.10.078
JF Liu, En-Zuo Liu, H Wang, NH Su, J Qi, JZ Jiang, None, Surface magnetism in amine-capped ZnO nanoparticles Nanotechnology. ,vol. 20, pp. 165702- ,(2009) , 10.1088/0957-4484/20/16/165702