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三種類の増感剤を用いた界面修飾による高効率かつ安定な全無機ペロブスカイト太陽電池の開発に関する研究
https://doi.org/10.18997/00008671
https://doi.org/10.18997/00008671c3696891-0375-46ad-8030-d006df744824
| 名前 / ファイル | ライセンス | アクション |
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sei_k_413.pdf (4.8 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 | 2022-01-04 | |||||||
| 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 | Research on Development of Inorganic Perovskite Solar Cells with High Efficiency and Durability by Interfacial Modification Using Three Sensitizers | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | 三種類の増感剤を用いた界面修飾による高効率かつ安定な全無機ペロブスカイト太陽電池の開発に関する研究 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Yang, Shuzhang
× Yang, Shuzhang
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Perovskite solar cells （PSCs） have been intensively investigated and also considered as the most likely the third-generation photovoltaic device for commercialization. Among the family of PSCs, we know that all inorganic PSCs hold the unique advantage of thermal stability which are the ideal candidate to mitigate the stable issues of PSCs. However, all inorganic PSCs still suffer from low power conversion efficiency （PCE）, poor moisture stability as well as the toxic problem. This thesis mainly focus on the exploration of non-toxic perovskite materials, enhancement of perovskite moisture stability, improvement of the perovskite absorption character and application in PSCs. Firstly, for improving CsPbIBr2-based PSC performance, 5, 15-bis （2, 6-dioctoxyphenyl）-10-（bis（4-hexylphenyl）-amino-20-4-carboxyphenyl ethynyl） porphyrinato]zinc（II） （YD2-o-C8）, a dye molecular, was employed. After introducing the dye molecular, the light absorption spectrum was broadened, meanwhile, the interfacial charge recombination also be efficiently reduced. Secondly, a simple surface engineering using another dye molecular, Tris（N,N,N-tributyl-1-butanaminium）[[2,2′′6′,2′′-terpyridine]-4,4′,4′′-tricarboxylato（3-）-N1,N1′,N1′′]tris（thiocyanato-N）hydrogen ruthenate（4-） （N749）, was applied for NiOx layer. This strategy exhibits that it can efficiently improve phase moisture stability of perovskite materials. Thirdly, for replacing the toxic Pb, a Pt-based double perovskite material Cs2PtI6 was explored. This material demonstrates excellent stability when exposed to extreme conditions such as high humidity, high temperature and UV-light irradiation. In chapter 1, the background of the photovoltaic technology and the current development, including the device classification and the basic principle of solar cells were introduced. Moreover, the perovskite materials and their devices structure were demonstrated. All inorganic and Pb-free perovskites were also introduced. Furthermore, the challenges for the lead-free perovskites and the purpose of this thesis were described. Moreover, the issues of the all-inorganic PSCs and the motivation of this thesis were depicted. In chapter 2, the reagents and apparatus for prepare each layer of PSCs in this thesis were listed. Besides that, the basic physical and optoelectronic characterization methods and instruments were listed. The general descriptions of the preparation methods and the device fabrication techniques were displayed. In addition, the information related to device performance were depicted. In chapter 3, for enhancing the performance of the all-inorganic PSCs, the strategy of broadening the absorption spectrum and reducing the energy loss （Eloss） was executed. A dye molecule YD2-o-C8 was introduced. This surface engineering preprocess indicates that the dye has two main functions. It can not only as a co-sensitizer layer broaden the absorption spectrum, but also reduce the Eloss. After modification of YD2-o-C8, the light absorption cut-off edge of the active layer was obviously broadened from 600 to 680 nm and the interfacial charge recombination was highly suppressed. Finally, the PCE was improved from 7.02% to 10.13%, and a record-high open circuit voltage （VOC） of 1.37 V, short-circuit currents （JSC） of 12.05 mA/cm2 were achieved. In chapter 4, for solving the poor phase stability caused by moisture, we modified the interface contact and energy alignment between NiOx and CsPbIBr2 using another dye molecular N749. The result shows a better PCE of 9.49% compared to the control sample （6.28%） in CsPbIBr2-based inverted PSCs. Significantly the passivated device after 1000 h stored in 65% relative humidity （RH） ambient still can maintain around 86% of its initial value. The result indicates the application of N749 could effectively prevent phase segregation and moisture infiltration. In chapter 5, with the aim of replacing the toxic Pb metal and stabilizing the PSCs, a novel ultrastability double perovskite Cs2PtI6 was synthesized and successfully applied into solar cells through the solution process. The bandgap of the Cs2PtI6 is 1.37 eV, and the absorption band edge is up to 905 nm. After optimization, the Cs2PtI6 based solar cells exhibited a best PCE of 0.72% with a VOC of 0.73 V, a short-circuit current of 1.2 mA/cm2 and a fill factor of 0.82. The devices stayed in extreme conditions such as high humidity, high temperature and UV-light irradiation without any encapsulation, can retain almost 80% of the original efficiency, suggesting excellent device stability. Finally, the general conclusions of this thesis were listed and future prospects were given for further development of PSCs. The development of all inorganic perovskites photovoltaic devices still face many restriction in terms of poor light utilization capacity, long-time stability and toxicity for commercialization. Some further studies have applied to enhance the performance of the device such as introducing absorption layer and interfacial passivation for improving spectral absorption and reducing the surface recombination Development of new Pb-free perovskites with high performance can also be helpful to replace the toxic lead problem. | |||||||
| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1. Introduction||2. Experimental section of the general methods and characterization techniques||3. Reducing interfacial energy loss by YD2-o-C8 interface passivation||4. Improving moisture stability through dye molecule N749 interface modification||5. Development of non-toxic and ultra-stable perovskite sensitizer||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413号 学位授与年月日：令和3年9月24日 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Inorganic perovskite solar cells | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Interface engineering | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Dye molecule | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Moisture stability | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Double perovskites | |||||||
| アドバイザー | ||||||||
| 馬, 廷麗 | ||||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第413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 | 2021-09-24 | |||||||
| 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 | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 令和3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 | 10.18997/00008671 | |||||||
| ID登録タイプ | JaLC | |||||||
