欢迎登录材料期刊网

材料期刊网

高级检索

用溶胶-凝胶法制备了不同浓度(0、1%、3%、5%(摩尔分数))的Nd掺杂钛酸锶钡(Ba0.65Sr0.35TiO3,BST)薄膜.XRD结果表明,经700℃退火1h后,样品晶化为完整的多晶钙钛矿结构,平均晶粒尺寸为20nm.原子力显微镜(AFM)观察发现,薄膜表面均匀致密,光滑平整.室温光致发光谱(PL)显示在808nm氩离子激光激发下,Nd掺杂的BST薄膜在876、1060、1337nm处有较强的近红外(NIR)发光,分别对应于Nd3+的4F3/2-4I9/2、4F3/2-4I11/2、4F3/2-4I13/2跃迁.这些结果表明Nd掺杂BST薄膜在激光器和光放大器等光电器件领域有着广泛的应用前景.

参考文献

[1] Lemos F C D;Melo M A;Da Silva J E C et al.[J].Optics Communications,2004,231:251-255.
[2] Kang J;Leem;Lee S et al.[J].Applied Physics Letters,2004,85(19):4367-4369.
[3] Zhao X;Lu F .[J].Materials Letters,2002,54:81-84.
[4] Jayadevan KP.;Tseng TY. .Composite and multilayer ferroelectric thin films: processing, properties and applications [Review][J].Journal of Materials Science. Materials in Electronics,2002(8):439-459.
[5] Xu Jin;Menesklou W;Ivers-Tiffee E .[J].Journal of the European Ceramic Society,2004,24:1735-1739.
[6] Zhang Tianjin;Wang Jun;Jiang Juan et al.[J].Thin Solid Films,2007,515:7721-7725.
[7] Murakami S.;Morita M.;Herren M. .Excitation energy transfer and low-temperature anomaly in luminescence of RE3+ codoped PLZT ceramics[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,1998(0):460-463.
[8] 丁文,丁永平,孟中岩.Sol-Gel制备Ba1-x Srx TiO3系铁电薄膜的介电、调谐性能*[J].功能材料,2001(04):388-390.
[9] Jaffe B;Jr Cook W K;Jaffe H.Piezoelectric Ceramics[M].Marietta R A N.Publisher,1991
[10] Shou-Yi Kuo;Chin-Sheng Chen;Tseung-Yuen Tseng;S.-C. Chang;Wen-Feng Hsieh .Dependence of luminescence efficiency on dopant concentration and sintering temperature in the erbium-doped Ba_(0.7)Sr_(0.3)TiO_(3) thin films[J].Journal of Applied Physics,2002(4):1868-1872.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%