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Study of Photorefractive Dynamics in Poly(triarylamine)-based Polymer Composites
http://hdl.handle.net/10212/2523
http://hdl.handle.net/10212/25233c262f1a-17d1-40c4-9aab-ae00c5fb492a
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全文 (1.8 MB)
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内容・審査結果の要旨 (193.7 KB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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| 公開日 | 2022-04-16 | |||||||||
| タイトル | ||||||||||
| タイトル | Study of Photorefractive Dynamics in Poly(triarylamine)-based Polymer Composites | |||||||||
| 言語 | en | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | ポリトリアリールアミンを用いた高分子複合材料のフォトリフラクティブ性に関する研究 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
桝村, 健人
× 桝村, 健人
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Photorefractive materials | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Organic materials | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Dynamic gratings | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Volume gratings | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Photorefractive optics | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | The Photorefractive (PR) effect is defined as spatial modulation of the index of refraction due to charge redistribution in a nonlinear optical material. Holographic displays using the PR effect have received a great deal of attention because they can provide 3D images without special eyeglasses. For practical use of the PR materials, high external diffraction efficiency and fast response are indispensable. This thesis consists of six chapters. The PR dynamics in poly(triarylamine) (PTAA) based polymer composite was discussed from chapter 3 to chapter 5. In this study, PTAA was chosen as a PR photoconductive polymer, expected to lead fast response due to its high hole mobility.In chapter 3, the diffraction efficiency as a function of applied field demonstrated appropriate applied field region of 45-60 V μm-1. Wavelength dependency of the PR performance was examined. The shorter wavelength illumination induced higher diffraction efficiency and faster response time due to appropriate charge generation. In chapter 4, the PR dynamics of PTAA-based composite with small amount of a second electron acceptor was investigated. The second electron trap agents reduced photocurrent and suppressed the dielectric breakdown. The addition of bathophenanthroline (BPhen) provided high PR performance with response time of 397 μs, external diffraction efficiency of 5.9% and sensitivity of 1145 cm2 J-1. The effect of photoconductivity on the PR response time is discussed.In chapter 5, the composition ratio of PTAA-based composite was optimized to obtain the enhanced PR performance. The resulting composite achieved higher external diffraction efficiency of 23.9% and higher sensitivity of 1851 cm2 J-1. The key point of the optimization of the composite is the control of the absorption coefficient, related to the external diffraction efficiency. The extremely high sensitivity, as an indicator of the performance of real-time 3D holographic displays containing the elements of the response time and the external diffraction efficiency, indicated the PTAA-based PR composite as the most promising candidate of the holographic displays. | |||||||||
| 言語 | en | |||||||||
| 日付 | ||||||||||
| 日付 | 2019-03-25 | |||||||||
| 日付タイプ | Issued | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第913号 | |||||||||
| 学位名 | ||||||||||
| 言語 | ja | |||||||||
| 学位名 | 博士（工学） | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2019-03-25 | |||||||||
| 学位授与機関 | ||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||
| 学位授与機関識別子 | 14303 | |||||||||
| 言語 | ja | |||||||||
| 学位授与機関名 | 京都工芸繊維大学 | |||||||||
