Synthesis and characterizations of Al-doped Zn 0.95Ni 0.05O nanocrystals

Nanocrystalline Zn 0.95− x Ni 0.05Al x O ( x = 0.01, 0.02, 0.05 and 0.10) diluted magnetic semiconductors have been synthesized by an autocombustion method. X-ray absorption spectroscopy, high-resolution transmission electron microscopy, energy-dispersive spectrometry and Ni 2p core-level photoemiss...

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Bibliographic Details
Published inScripta materialia Vol. 56; no. 11; pp. 967 - 970
Main Authors Pei, Guangqing, Xia, Changtai, Wang, Linjun, Li, Xing, Jiao, Xinbing, Xu, Jun
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2007
Subjects
EXAFS
Nanocrystalline materials
Semiconductor compounds
TEM
ZnNiO
Semiconductor compounds
Nanocrystalline materials
ZnNiO
TEM
EXAFS
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Summary:Nanocrystalline Zn 0.95− x Ni 0.05Al x O ( x = 0.01, 0.02, 0.05 and 0.10) diluted magnetic semiconductors have been synthesized by an autocombustion method. X-ray absorption spectroscopy, high-resolution transmission electron microscopy, energy-dispersive spectrometry and Ni 2p core-level photoemission spectroscopy analyses revealed that some of the nickel ions were substituted for Zn 2+ into the ZnO matrix while others gave birth to NiO nanoclusters embedded in the ZnO particles. The Zn 0.95Ni 0.05O sample showed no enhancement of room-temperature ferromagnetism after Al doping.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2007.02.014