Fabrication of organic light-emitting diodes using natural pigments extracted from plants
| Project/Area Number |
25420348
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Doshisha University |
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Principal Investigator |
Ohtani Naoki 同志社大学, 理工学部, 教授 (80359067)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | 有機EL / カロテノイド / 抗酸化作用 / 蛍光寿命 / βカロテン / 発光の長寿命化 / カラムクロマトグラフィ / 単離精製 / 発光ダイオード / クロロフィル / カラムクロマトグラフィー / 発光効率の改善 / 動作寿命の改善 / 植物の蛍光色素 |
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| Outline of Final Research Achievements |
We evaluated the antioxidant effect of carotenoids extracted from spinach on photoluminescence (PL) lifetime of organic emissive materials.
By using the column chromatography method, one of carotenoid dyes β-carotene was isolated and purified from spinach. To evaluate PL lifetime of the mixture of organic emissive materials and β-carotene, we found that PL lifetime was drastically improved. Not only that, the PL intensity was increased due to the β-carotene doping. These results demonstrate that antioxidant effect of β-carotene is very useful to improve the operation lifetime of organic emissive materials. This implies that abundant plant pigments are very useful for low-cost production of OLEDs.
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Report
(4 results)
Research Products
(12 results)
