التفاصيل البيبلوغرافية
| العنوان: |
Co-doped anatase TiO2 nanofibers fabricated by electrospinning. |
| المؤلفون: |
Jia, C. W., Xie, E. Q., Zhao, J. G., Duan, H. G. |
| المصدر: |
Journal of Applied Physics; 5/1/2007, Vol. 101 Issue 9, p093509, 4p, 1 Diagram, 4 Graphs |
| مصطلحات موضوعية: |
TITANIUM dioxide, NANOSTRUCTURED materials, X-ray diffraction, FERROMAGNETISM, PHOTOLUMINESCENCE, EXCITON theory |
| مستخلص: |
Co-doped TiO2 nanofibers with an average diameter of ∼70 nm were fabricated with electrospinning method. X-ray diffraction measurements show that the nanofibers possess pure anatase structure. The obtained nanofibers exhibit evident room temperature ferromagnetism through magnetic measurement. The photoluminescence of the Co-doped TiO2 nanofibers is composed of two emission bands attributed to self-trapped excitons and oxygen vacancies, different from that of pure TiO2 nanofibers which only includes emission due to self-trapped excitons. Photoluminescence intensity due to oxygen vacancies vary with annealing atmosphere and Co concentration, and the ferromagnetic moment increases with the increment of oxygen vacancies. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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