2017 Fiscal Year Final Research Report
Development of a new measurement system for carrier behavior in organic light-emitting diodes and organic photovoltaic cells
| Project/Area Number |
15K18037
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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 |
Electronic materials/Electric materials
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| Research Institution | Kyushu Sangyo University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 有機太陽電池 / 有機EL / レーザービーム誘起電流測定 |
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| Outline of Final Research Achievements |
In organic solar cells,carrier behavior in the elementary process leading to power generation in the light receiving surface greatly contributes to its device characteristics.Therefore,I proposed a measurement method of carrier behavior which combines the advantages of optical measurement method and electrical measurement method, and aimed at measurement and analysis of carrier behavior in the organic devices.
For double-layered organic solar cells,the film thickness configuration of the pentacene layer and the fullerene layer was changed,and current-voltage characteristics and power characteristics were measured.As a result,I found that higher power can be obtained when the pentacene layer is thick or when the fullerene layer is thin.Therefore,the exciton diffusion length in each organic layer showed a large contribution to the power conversion efficiency from the results of photo-current distribution measurement by the LBIC measurement with the irradiation light wavelength changed.
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| Free Research Field |
有機エレクトロニクス
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