Non-Stoichiometry Induced Switching Behavior of Ferroelectric Photovoltaic Effect in BaTiO3 Ceramics
文献类型：期刊论文
| 作者 | Xiang, Hao; Zhang, Faqiang; Yi, Zhiguo; Ma, Mingsheng; Gu, Yan; Liu, Feng; Li, Yongxiang; Liu, Zhifu |
| 刊名 | PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 13期号:7 |
| 关键词 | barium titanate ferroelectric photovoltaic non-stoichiometry switching behavior |
| ISSN号 | 1862-6254 |
| DOI | 10.1002/pssr.201900074 |
| 文献子类 | Article |
| 英文摘要 | Ferroelectric photovoltaic (FPV) effect has been studied among a series of non-stoichiometric BaTiO3 (Ba/Ti = 0.92-1.05) ceramic chips prepared by tape casting method. The FPV performance increases abruptly when the Ba/Ti molar ratio deviates from the stoichiometry within 1%. Meanwhile, a photocurrent direction switching behavior is observed between Ti-excess and Ba-excess samples. The TEM analysis shows their significant difference in grain-boundary (GB), where abnormal GB with a width of 10-15 nm is observed in Ba-excess sample. The photocurrent switching phenomenon is described to the competition between the asymmetrical Schottky barriers induced PV effect and intrinsic FPV effect. Widen GB in Ba-excess BaTiO3 ceramics restrains the intrinsic FPV effect and results in the switching behavior. This study offers direct evidence of the vital role of GB in FPV effect and may promote the development of photovoltaic devices. |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27002]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Xiang, Hao,Zhang, Faqiang,Yi, Zhiguo,et al. Non-Stoichiometry Induced Switching Behavior of Ferroelectric Photovoltaic Effect in BaTiO3 Ceramics[J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,2019,13(7). |
| APA | Xiang, Hao.,Zhang, Faqiang.,Yi, Zhiguo.,Ma, Mingsheng.,Gu, Yan.,...&Liu, Zhifu.(2019).Non-Stoichiometry Induced Switching Behavior of Ferroelectric Photovoltaic Effect in BaTiO3 Ceramics.PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,13(7). |
| MLA | Xiang, Hao,et al."Non-Stoichiometry Induced Switching Behavior of Ferroelectric Photovoltaic Effect in BaTiO3 Ceramics".PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS 13.7(2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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