| Project/Area Number |
15K18042
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Electronic materials/Electric materials
|
|---|
| Research Institution | National Institute for Materials Science |
|---|
Principal Investigator |
Ishida Nobuyuki 国立研究開発法人物質・材料研究機構, 先端材料解析研究拠点, 主任研究員 (10451444)
|
|---|
| Project Period (FY) |
2015-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
|
|---|
| Keywords | ペロブスカイト太陽電池 / ケルビンプローブフォース顕微鏡 / その場電位計測 / 電位計測 / ポテンシャル計測 |
|---|
| Outline of Final Research Achievements |
We have developed an in-situ measurement system for characterizing electrical potential distribution in perovskite solar cells. With this technique, we succeeded in visualizing the change of the potential distribution arising from a light irradiation in a quantitative manner. Furthermore, we demonstrated that the position of p-n junction can be determined by taking the difference of potential profile between dark and light irradiation conditions. We found that the position of p-n junction varied depending on the structure of the perovskite solar cell and composition of the materials. For future work, we have to clarify the cause of the variation of the p-n junction position to obtain design criteria for further improvement of the device performance.
|
