2013 Fiscal Year Final Research Report
Studies on the control of the interface between organic layer and electrode using metal oxides and improvement of organic electronic devices
| Project/Area Number |
23550209
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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 |
Functional materials/Devices
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 界面制御 / 金属酸化物 / 有機デバイス / 有機薄膜太陽電池 / 有機発光ダイオード |
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| Research Abstract |
It was found that exciton quenching takes place at the interface between organic layer and LiF / Al cathode and that the exciton quenching is suppressed by the insertion of molybdenum oxide (MoO3) layer between LiF and Al. The use of MoO3 as a cathode buffer material in organic solar cells improves the short circuit current densities, thus resulting in the improvement of the power conversion efficiencies. Organic light-emitting diodes (OLEDs) with LiF / MoO3 / Al cathode showed higher external quantum efficiencies as compared with the OLEDs with LiF / Al cathode.
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