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Investigation of Trap Sites and Their Roles in Organic Triphenylamine-Based Photorefractive Materials
http://hdl.handle.net/10212/2305
http://hdl.handle.net/10212/2305d9afb295-3b0e-424d-9959-387c30fb3b06
| 名前 / ファイル | ライセンス | アクション |
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内容の要約 (10.0 KB)
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内容・審査結果の要旨 (346.2 KB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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| 公開日 | 2017-09-01 | |||||||||
| タイトル | ||||||||||
| タイトル | Investigation of Trap Sites and Their Roles in Organic Triphenylamine-Based Photorefractive Materials | |||||||||
| 言語 | en | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | 有機トリフェニルアミンフォトリフラクティブ材料におけるトラップとその役割の検討 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
辻村, 翔
× 辻村, 翔
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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 | Organic photorefractive materials | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Triphenylamine derivatives | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Photoconductivity | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Charge transport | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Trapping rate | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Density of state | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Crystallization | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Bulk state | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Organic photorefractive (PR) materials have been studied during the last quarter-century, and they have recently received much attention due to their updatable features that allow them to be used in dynamic holographic devices. However, understanding bulk trap sites that drive the PR effect (by inducing a space-charge field) remains a critical issue. In general, the trap site behavior can be controlled from the energetic point of view; however, bulk devices contain not only the energy trap sites but also structural neutral ones, which decrease the carrier mobility. Organic PR devices are bulk optoelectronics devices, and the investigation of their trap tuning mechanism is still ongoing. In this thesis, carrier transport and trapping properties of the PR materials (represented by triphenylamine-based polymers) with induced space-charge fields are investigated. The effects of plasticizers and wavelengths of interference beams on the PR performance of the resulting holographic devices are studied via photoconductivity measurements. In order to solve a critical challenge of trap tuning, a modified fabrication technique is proposed, which enhances the photoconductivity of the PR materials by suppressing shallow traps. The trap site properties are controlled by studying bulk dipolar molecules with a photoemission yield spectroscopy in air technique, which provides the distribution of both the transport and trap sites. Finally, dynamic holographic images were produced by using organic PR composite films. | |||||||||
| 言語 | en | |||||||||
| 日付 | ||||||||||
| 日付 | 2016-03-25 | |||||||||
| 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 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第779号 | |||||||||
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| 言語 | ja | |||||||||
| 学位名 | 博士（工学） | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2016-03-25 | |||||||||
| 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 | |||||||||
