UV-visible spectra of perovskite iron-doped Ba0.72Sr0.28TiO3

作者：Zhu Yudan; Sun Dazhi^*; Huang Qiong; Jin Xueqing; Liu Heng

来源：Materials Letters, 2008, 62(3): 407-409.

DOI：10.1016/j.matlet.2007.05.041

• barium strontium titanate
• Fe3+-doped
• ultraviolet-visible
• perovskite

The ultraviolet-visible spectra of the pure barium strontium titanate (Ba0.72Sr0.28TiO3) and the Fe3+-doped Ba0.72Sr0.28TiO3 were measured. The pure barium strontium titanate exhibited an ultraviolet (UV) absorption effect. The addition of Fe,03 resulted in an increase of absorption wavelength. This red-shift effect was very strong even though the amount of Fe3+ was very small. The similar phenomenon was also observed in pure BaTiO3 and Fe3+-doped BaTiO3. The UV-absorption behavior was discussed in terms of Fe3+ replacing Ti4+ in the titanate with perovskite structure.

• 出版日期2008-2-15
• 单位上海师范大学