Study of structural and photoluminescent properties in barium titanate nanocrystals synthesized by hydrothermal process
文献类型：期刊论文
| 作者 | Zhang, MS; Yin, Z; Chen, Q; Zhang, WF; Chen, WC |
| 刊名 | Solid state communications
 |
| 出版日期 | 2001 |
| 卷号 | 119期号:12页码:659-663 |
| 关键词 | Nanostructures Chemical synthesis Crystal structure and symmetry Optical properties Inelastic light scattering |
| ISSN号 | 0038-1098 |
| 通讯作者 | Zhang, ms() |
| 英文摘要 | Nanocrystalline barium titanate was synthesized by hydrothermal technique at ambient pressure and at temperatures less than 100 degreesc. a temperature of 80 degrees was found to be the optimum synthesizing temperature. the lattice vibration, microstructures and photoluminescence were examined by x-ray diffraction and raman spectroscopy. the grain sizes ranging from 24 to 48 ran were obtained under heat treatment, from x-ray patterns via scherrer formula. the critical size of 48 mn was found, below which the ferroelectric phase vanishes. small tetragonality cla ratio was found to be 1.003, causing a weakening of ferroelectricity. strong photoluminescence spectrum centered at 696 run was observed with the origin being attributed to charge transfer via intrinsic defects inside oxygen octahedron. strengthening in pl spectra with increasing both annealing temperature and time, is related to the increase in oxygen vacancies and the grain size in the nanocrystal barium titanate. (c) 2001 published by elsevier science ltd. |
| WOS关键词 | ELECTRICAL-TRANSPORT PROPERTIES ; DEFECT CHEMISTRY ; PHASE-TRANSITION ; BATIO3 ; SRTIO3 ; SIZE ; PBTIO3 ; FILMS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000170847900004 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373910 |
| 专题 | 物理研究所 |
| 通讯作者 | Zhang, MS |
| 作者单位 | 1.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China 2.Nanjing Univ, Ctr Mat Anal, Nanjing 210093, Peoples R China 3.Henan Univ, Dept Phys, Kaifeng 475001, Peoples R China 4.Acad Sinica, Inst Phys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, MS,Yin, Z,Chen, Q,et al. Study of structural and photoluminescent properties in barium titanate nanocrystals synthesized by hydrothermal process[J]. Solid state communications,2001,119(12):659-663. |
| APA | Zhang, MS,Yin, Z,Chen, Q,Zhang, WF,&Chen, WC.(2001).Study of structural and photoluminescent properties in barium titanate nanocrystals synthesized by hydrothermal process.Solid state communications,119(12),659-663. |
| MLA | Zhang, MS,et al."Study of structural and photoluminescent properties in barium titanate nanocrystals synthesized by hydrothermal process".Solid state communications 119.12(2001):659-663. |
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来源：物理研究所
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