Creation of photoelectrochemical cell based on heterostructures of iron oxides
| Project/Area Number |
15H03563
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Thin film/Surface and interfacial physical properties
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
Seki Munetoshi 東京大学, 大学院工学系研究科(工学部), 准教授 (40432439)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2017: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2015: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
|
|---|
| Keywords | 酸化鉄薄膜 / 太陽光水分解 / 酸化鉄 / パルスレーザー堆積法 / 電子・電気材料 / 太陽光発電 / 太陽光エネルギー変換 / 光電気化学セル |
|---|
| Outline of Final Research Achievements |
Photoelectrodes of iron oxides were fabricated towards the high-efficiency solar water splitting. First we fabricated the photocathodes based on the wide gap semiconductor Si:FeO. We successfully suppress the partial oxidation of Fe ions at the surface of the electrode by depositing an insulating Ga2O3 layer on the Si:FeO. As a result, photocurrent was observed in the ultraviolet region in the Ga2O3/Si:FeO photocathode. Next, we fabricated Si:Fe2O3 photoelectrodes using a two-step pulsed laser deposition. The photocurrent was observed in the visible and near infrared regions which was further enhanced by the effect of localized surface plasmon. Moreover, we successfully fabricated V-substituted Fe2O3-based photoelectrodes which showed near infrared photocurrent and IPCE of approximately 11%.
|
Report
(4 results)
Research Products
(16 results)
