WEKO3
アイテム
ペロブスカイト薄膜の大気下作製とその特性および光電変換デバイスへの応用に関する研究
https://doi.org/10.18997/0002000468
https://doi.org/10.18997/000200046804d86447-70e9-4ce8-9e15-2633dd0339eb
| 名前 / ファイル | ライセンス | アクション |
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sei_k_474.pdf (5.9 MB)
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| アイテムタイプ | 学位論文 = Thesis or Dissertation(1) | |||||||
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| 公開日 | 2024-04-04 | |||||||
| 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 | |||||||
| タイトル | ||||||||
| タイトル | Studies of preparation and properties of ambient air-processed perovskite films and application to photoelectric conversion devices | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | ペロブスカイト薄膜の大気下作製とその特性および光電変換デバイスへの応用に関する研究 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
He, Yi
× He, Yi
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | The development of perovskite film preparation methods in ambient air can effectively reduce the production cost of perovskite photoelectric conversion devices. However, the fabrication of perovskite film in ambient air easy causes pinholes, large surface roughness, and poor morphology of the perovskite films and lead to lower the performance of their devices. The nitrogen glove box can provide perovskite with a dry and oxygen free environment, however, undoubtedly increases the cost. The purpose of this thesis is to develop new method for ambient growth perovskite films with high tunability and stability, and to apply for perovskite photoelectric conversion devices with good performance and stability in ambient air operation. In chapter 1, an academic overview of the historical background and ongoing advancements in perovskite-based photoelectric conversion devices were introduced. The discussion encompasses device classification and delves into the fundamental principles underlying solar cells and photodetectors. In chapter 2, a comprehensive account of the reagents and apparatus utilized for the preparation of each layer of PSC was introduced. Additionally, a detailed inventory of the fundamental physical and optoelectronic characterization methods and instruments employed in the study is provided. Furthermore, the thesis includes comprehensive explanations regarding the raw materials, preparation methodologies, and techniques employed for the fabrication of the devices. In chapter 3, water was used counterintuitively to formulate an ambient stable perovskite precursor. The non-fluidity of the precursor stemmed from the water-assisted intermediate fiber assembly, conferring high damp air stability. Polyvinyl pyrrolidone（PVP）was introduced as a surfactant to control the perovskite growth, and successfully obtained films with high uniformity and crystallinity. In addition, theoretical calculation based on density functional theory (DFT), ex-situ and in-situ characterizations proved the coordination of oxygen from PVP and lead from perovskite. In chapter 4, the ambient-growth perovskite films were used as light absorption layer to from a diode type device with stable and linear response. A new-type self-driving photodetector with low noise current, high detectivity and stable performance was developed. The application of the solid precursor holds a great potential to broaden its application scope for low-cost technology. In chapter 5, the saturated vapor pressure (Vp) and Gutmann donor number (DN) of the perovskite precursor solvents, which the properties with crucial effects on perovskite film formation were studied. These properties mainly dominate the solubility of perovskite as well as affect crystal nucleation and crystallization processes. The high-coverage perovskite films were obtained after optimization of the formation parameters. Moreover, photodetectors and solar cells were fabricated with prepared the perovskite films. The photodetectors with hydration precursors exhibited low noise current, high specific detectivity and humidity stability. The ambient air-processed perovskite solar cells by using solvent engineering exhibited a high efficiency of 18%. Finally, comprehensive overview of the main findings and implications, while also offering insights into future advancements in ambient air-processed photoelectric conversion devices were presented. We successfully prepared high-performance and stable perovskite in ambient air by a unique solid-phase precursor method. We also provided the ideas of solvent selection for perovskite preparation in ambient air and obtained high-efficiency solar cells by ternary solvent. |
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| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1. Introduction| 2. Experimental section and characterization| 3. Preparation of MAPbI3 perovskite film in ambient air by a liquefiable solid precursor| 4. Preparation of self-driving perovskite photodetectors in ambient air and their performance measurement| 5. Selection of suitable solvent for improvement performance and stability of triple-cation mixed perovskite solar cells in ambient air| 6. General conclusions and future prospects | |||||||
| 備考 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 九州工業大学博士学位論文 学位記番号:生工博甲第474号 学位授与年月日:令和5年12月27日 | |||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第474号 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2023-12-27 | |||||||
| 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 | 17104 | |||||||
| 学位授与機関名 | 九州工業大学 | |||||||
| 言語 | ja | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 令和5年度 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| 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 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.18997/0002000468 | |||||||
| ID登録タイプ | JaLC | |||||||
