Ion dynamics of light-emitting electrochemical cells investigated using operando X-ray spectromicroscopy
| Project/Area Number |
15K17926
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Device related chemistry
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| Research Institution | High Energy Accelerator Research Organization |
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Principal Investigator |
TAKEICHI Yasuo 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 助教 (40636461)
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| Co-Investigator(Renkei-kenkyūsha) |
ONO Shimpei 電力中央研究所, 材料科学研究所, 主任研究員 (30371298)
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| Research Collaborator |
MIWA Kazumoto
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | X線顕微分光 / 走査型透過X線顕微鏡 / 電気化学発光セル / オペランド分光 / X線顕微鏡 / 発光デバイス / X線分光 |
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| Outline of Final Research Achievements |
Light-emitting electrochemical cells (LEC) using ionic liquid are of interest for a new generation light source with high efficiency. We have observed the behavior of the ion distribution in LECs under operation using scanning transmission X-ray microscopy. We found that the operating current actually drives the ion movement, however, observed anion distribution was not fully described by a simple mechanism of self-organized p-n junction. Moreover, heterogeneic ion/polymer distribution due to the phase separation was found in the degraded cells.
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Report
(3 results)
Research Products
(2 results)
