| Presentation | 2009-03-06 Molecular orientation in amorphous films of organic semiconductors Daisuke YOKOYAMA, Akio SAKAGUCHI, Michio SUZUKI, Chihaya ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It has been taken for granted that molecules in organic vacuum-deposited amorphous films are randomly oriented and the films themselves are isotropic. Here, however, the authors demonstrate horizontal orientation of long or planar molecules in organic amorphous films using variable angle spectroscopic ellipsometry and cutoff emission measurement. The molecular orientation was observed in films on many kinds of underlying layers and even in doped films. It was found that there is a correlation between molecular structures and orientation order parameters and that the orientation affects electrical characteristics of the films. The horizontal molecular orientation can be utilized to improve light out-coupling efficiencies and carrier transport characteristics of OLEDs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Organic Amorphous Films / Molecular Orientation / Variable Angle Spectroscopic Ellipsometry / Cutoff Wavelength / Organic Light-Emitting Diodes |
| Paper # | EID2008-88,OME2008-99 |
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| Conference Information | |
| Committee | OME |
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| Conference Date | 2009/2/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Organic Material Electronics (OME) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Molecular orientation in amorphous films of organic semiconductors |
| Sub Title (in English) | |
| Keyword(1) | Organic Amorphous Films |
| Keyword(2) | Molecular Orientation |
| Keyword(3) | Variable Angle Spectroscopic Ellipsometry |
| Keyword(4) | Cutoff Wavelength |
| Keyword(5) | Organic Light-Emitting Diodes |
| 1st Author's Name | Daisuke YOKOYAMA |
| 1st Author's Affiliation | Center for Future Chemistry, Kyushu University() |
| 2nd Author's Name | Akio SAKAGUCHI |
| 2nd Author's Affiliation | J.A. Woollam Japan Corporation |
| 3rd Author's Name | Michio SUZUKI |
| 3rd Author's Affiliation | J.A. Woollam Japan Corporation |
| 4th Author's Name | Chihaya ADACHI |
| 4th Author's Affiliation | Center for Future Chemistry, Kyushu University |
| Date | 2009-03-06 |
| Paper # | EID2008-88,OME2008-99 |
| Volume (vol) | vol.108 |
| Number (no) | 469 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |