Electrodeposited Aluminum-Doped alpha-Fe2O3 Photoelectrodes: Experiment and Theory
文献类型：期刊论文
| 作者 | Kleiman-Shwarsctein, A ; Huda, MN ; Walsh, A ; Yan, YF ; Stucky, GD ; Hu, YS ; Al-Jassim, MM ; McFarland, EW |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2010 |
| 卷号 | 22期号:2页码:510 |
| 关键词 | TOTAL-ENERGY CALCULATIONS THIN-FILM ELECTRODES WAVE BASIS-SET HYDROGEN-PRODUCTION IRON-OXIDE ELECTROCHEMICAL SYNTHESIS SEMICONDUCTOR PROPERTIES VISIBLE-LIGHT P-TYPE WATER |
| ISSN号 | 0897-4756 |
| 通讯作者 | Hu, YS: Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA. |
| 中文摘要 | Substitutional doping call improve the electronic Properties of alpha-Fe2O3 for the solar photoelectrochemical (PEC) applications. Generally speaking, nonsovalent substitutional doping helps to enhance the electronic conductivity of alpha-Fe2O3. However, We found that file introduction of strain ill the lattice, which is achieved by isovalent substitutional doping of an Al, call also improve the electronic properties. alpha-Fe2O3 films with the Al dopant atomic concentration varying from 0 to 10%, were prepared by electrodeposition, and their performance for photoelectrochemical hydrogen production was characterized. Results indicate that the incident photon conversion efficiency (IPCE) for similar to 0.45 at-% Al substitution increases by 2- to 3-fold over undoped samples. Density-functional theory (DFT) was Utilized to interpret the experimental findings. It wits shown that although no substantial change to the electronic structure, it contraction of the crystal lattice due to the isovalent replacement of Fe3+ by an Al3+ benefits the small polaron migration, resulting ill an improvement in conductivity compared to the undoped samples. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/37023]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kleiman-Shwarsctein, A,Huda, MN,Walsh, A,et al. Electrodeposited Aluminum-Doped alpha-Fe2O3 Photoelectrodes: Experiment and Theory[J]. CHEMISTRY OF MATERIALS,2010,22(2):510. |
| APA | Kleiman-Shwarsctein, A.,Huda, MN.,Walsh, A.,Yan, YF.,Stucky, GD.,...&McFarland, EW.(2010).Electrodeposited Aluminum-Doped alpha-Fe2O3 Photoelectrodes: Experiment and Theory.CHEMISTRY OF MATERIALS,22(2),510. |
| MLA | Kleiman-Shwarsctein, A,et al."Electrodeposited Aluminum-Doped alpha-Fe2O3 Photoelectrodes: Experiment and Theory".CHEMISTRY OF MATERIALS 22.2(2010):510. |
入库方式： OAI收割
来源：物理研究所
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