| Presentation | 2002/9/10 Photoelectric properties of poly(9,9-dioctylfluorene) thin films Masaru ANDO, Hideaki TAKAHASHI, Akiharu KOBAYASHI, Hiroyoshi NAITO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Optical properties of UV-light soaked polyfluorene (PFO), and aligned PFO on polyimide (P1) layers, have been studied by photoluminescence (PL) spectroscopy. The photo-oxidized states of PFO thin films were characterized by optical absorption, Fourier transform infrared absorption and electron spectroscopy for chemical analysis measurements. Temperature dependence of PL intensity of PFO is well described by a thermal quenching model, from which it is found that non-radiative decay enhances by photo-oxidation and that the height of potential barrier for the singlet excited states to the oxygen-related quenching centers is ～ 50 meV. The PFO thin films are found to be highly oriented, with the orientational order parameters evaluated by means of steady-state polarized absorption and fluorescence spectroscopy to be dependent on the cooling rates from the liquid crystalline phase. It is also found that the excimer emission becomes more remarkable in the PFO thin films with higher order parameters. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Polyfluorene / UV light irradiation / Quenching center / Excimer emission / steady-state polarized absorption and fluorescence spectroscopy / orientational order parameter |
| Paper # | OME2002-48 |
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| Conference Information | |
| Committee | OME |
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| Conference Date | 2002/9/10(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) | Photoelectric properties of poly(9,9-dioctylfluorene) thin films |
| Sub Title (in English) | |
| Keyword(1) | Polyfluorene |
| Keyword(2) | UV light irradiation |
| Keyword(3) | Quenching center |
| Keyword(4) | Excimer emission |
| Keyword(5) | steady-state polarized absorption and fluorescence spectroscopy |
| Keyword(6) | orientational order parameter |
| 1st Author's Name | Masaru ANDO |
| 1st Author's Affiliation | Department of Physics and Electronics, Osaka Prefecture University() |
| 2nd Author's Name | Hideaki TAKAHASHI |
| 2nd Author's Affiliation | Department of Physics and Electronics, Osaka Prefecture University |
| 3rd Author's Name | Akiharu KOBAYASHI |
| 3rd Author's Affiliation | Department of Physics and Electronics, Osaka Prefecture University |
| 4th Author's Name | Hiroyoshi NAITO |
| 4th Author's Affiliation | Department of Physics and Electronics, Osaka Prefecture University |
| Date | 2002/9/10 |
| Paper # | OME2002-48 |
| Volume (vol) | vol.102 |
| Number (no) | 303 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |