采用溶胶凝胶法,在孔径为200 nm的阳极氧化铝模板中制备了Bi_3.15Nd_0.85Ti_3O_(12)纳米管阵列.通过XRD、SEM、TEM、HRTEM、SAED和Raman光谱测试手段对纳米管阵列的物相、微结构和声子振动特性进行了表征.研究表明,所合成BNdT纳米管为钙钛矿相多晶结构,纳米管外径约为200 nm,管壁厚约10 nm,管径和长度与所用AAO模板尺寸一致.Raman光谱分析表明,Nd离子取代了类钙钛矿层中A位的Bi离子.
Bi_3.15Nd_0.85Ti_3O_(12) (BNdT) nanotube arrays were fabricated by sol-gel method utilizing porous anodic aluminum oxide (AAO) templates with 200 nm pore diameters. The phase, microstructure and phonon vibrational properties of the BNdT nanotube arrays were characterized by XRD, SEM, TEM, HRTEM, SAED and Raman spectrum respectively. The results show that the BNdT nanotubes are polycrystalline with perovskite structure. The diameter and wall thickness of BNdT nanotubes are about 200 and 10 nm respectively, which are dependent on the structure of AAO template employed. The Raman spectra indicated that Nd substituted for Bi in the A site in the perovskite layer of BNdT.
参考文献
| [1] | Lee S T;Wang N;Lee C S .[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2000,286:16. |
| [2] | Kang M;Lee JS;Sim SK;Min B;Cho K;Kim H;Sung MY;Kim S;Song SA;Lee MS .Structural and optical properties of as-synthesized, Ga2O3-coated, and Al2O3-coated GaN nanowires[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2004(1/2):265-271. |
| [3] | Wang Z L;Gao R P;Poncharal P et al.[J].Materials Science and Engineering C:Biomimetic and Supramolecular Systems,2001,16:3. |
| [4] | Gu Haoshuang;Hu Yongming;You Jing et al.[J].Journal of Applied Physics,2007,101:024319. |
| [5] | Seo BI;Shaislamov UA;Kim SW;Kim HK;Yang B;Hong SK .Bi3.25La0.75Ti3O12 (BLT) nanotube capacitors for semiconductor memories[J].Physica, E. Low-dimensional systems & nanostructures,2007(1/2):274-278. |
| [6] | Giridharan N V;Madeswaran S;Jayavel R et al.[J].Journal of Crystal Growth,2005,275:e965. |
| [7] | Park B H;Kang B S;Bu S D et al.[J].Nature,1999,401:682. |
| [8] | Noguchi Y;Miyayama M;Kudo T .[J].Physical Review B:Condensed Matter,2001,63(21):214102(1-2141025). |
| [9] | Ji Cheul Bae;Sang Su Kimb;Eun Kyung Cho et al.[J].Thin Solid Films,2005,472:90. |
| [10] | Guo Dong-Yun;Li Mei-Ya;Liu Jun;Fu Linjie;Wang Jing;Yu Ben-Fang;Yang Bin .Ferroelectric properties of Bi_(4-x)La_xTi_3O_(12) (x = 0, 0.75) thin films prepared by sol-gel method[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2007(2/3):135-138. |
| [11] | Liao M;Zhonga X L;Wang J B et al.[J].Journal of Crystal Growth,2007,304:69. |
| [12] | Yuan J H;He F Y;Sun D C et al.[J].CHEMISTRY OF MATERIALS,2004,16:1841. |
| [13] | Jessensky O.;Gosele U.;Muller F. .Self-organized formation of hexagonal pore arrays in anodic alumina[J].Applied physics letters,1998(10):1173-1175. |
| [14] | Martin C R .[J].Science,1994,266:1961. |
| [15] | Dorrian J F;Newnham R E;Smith D K .[J].Ferroelectrics,1971,3:17. |
| [16] | Yau C Y;Palan R;Tran K et al.[J].Applied Physics Letters,2005,85:4714. |
| [17] | Idink H;Srikanth V;White W B et al.[J].Journal of Applied Physics,1994,76:1819. |
| [18] | 胡正龙;顾豪爽;胡永明 et al.[J].功能材料,2007,38:764. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%