Effect of Humidity Adsorption on Mixed Valence Dielectric Material LaFe1-xAlxO3
文献类型：期刊论文
| 作者 | Ahmed, Rida1; Rehman, Sajid Ur2,3; Si, Renjun1; Wang, Chunchang1,4 |
| 刊名 | PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
 |
| 出版日期 | 2020-09-20 |
| ISSN号 | 0370-1972 |
| 关键词 | defects dielectric materials humidity sensitivity sol-gel method |
| DOI | 10.1002/pssb.202000342 |
| 通讯作者 | Wang, Chunchang(ccwang@ahu.edu.cn) |
| 英文摘要 | In mixed-valence colossal dielectric materials, the room temperature Maxwell-Wagner response is commonly assigned, in the past literature, to the electrode effect, grain boundary effect, or internal barrier layer capacitor effect. Another underlying phenomenon is brushed aside, and that is of adsorbance of the hydroxyl ions onto the defect centers on the surface of dielectric material. The properties of dielectric materials, especially those having oxygen vacancies, are sensitive to the atmospheric moisture and easily degrade in the humid environment. To study this effect, a series of LaFe(1 - x)Al(x)O(3)samples (x = 0, 0.1, 0.2, horizontal ellipsis , 0.8, and 1) are prepared by the sol-gel method, and the effect of humidity sensitivity on their dielectric properties is seen. The samples with greater Fe concentration show distinct humidity-sensitive properties with both metal electrodes (Pt and Ag) with a very miniscule difference in their measurement values. The effect of hydroxyl ions is further confirmed by the dielectric measurements after the thermal quenching of the samples that verify the adsorbance of water molecules on the surface of dielectric material. |
| WOS关键词 | SENSING PROPERTIES ; NANOCOMPOSITE ; CONSTANT ; GIANT |
| 资助项目 | National Natural Science Foundation of China[51872001] ; National Natural Science Foundation of China[51502001] ; Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics[KF201803] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000571082500001 |
| 资助机构 | National Natural Science Foundation of China ; Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/104263]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Chunchang |
| 作者单位 | 1.Anhui Univ, Sch Phys & Mat Sci, Lab Dielect Funct Mat, Hefei 230601, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 3.Anhui Univ, Sch Chem & Chem Engn, Hefei 230601, Peoples R China 4.Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ahmed, Rida,Rehman, Sajid Ur,Si, Renjun,et al. Effect of Humidity Adsorption on Mixed Valence Dielectric Material LaFe1-xAlxO3[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS,2020. |
| APA | Ahmed, Rida,Rehman, Sajid Ur,Si, Renjun,&Wang, Chunchang.(2020).Effect of Humidity Adsorption on Mixed Valence Dielectric Material LaFe1-xAlxO3.PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS. |
| MLA | Ahmed, Rida,et al."Effect of Humidity Adsorption on Mixed Valence Dielectric Material LaFe1-xAlxO3".PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS (2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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