WEKO3
アイテム
光スーパーキャパシターのためのキャパシターとペロブスカイト太陽電池の作製に関する研究
https://doi.org/10.18997/00006818
https://doi.org/10.18997/000068182e5f0375-a840-4e46-bd36-301cc3974893
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
sei_k_308.pdf (5.8 MB)
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| アイテムタイプ | 学位論文 = Thesis or Dissertation(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2018-06-13 | |||||||
| 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 | Fabrication of Super Capacitor and Perovskite-Sensitized Solar Cell for The Assembly of Photo-Super Capacitor | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | 光スーパーキャパシターのためのキャパシターとペロブスカイト太陽電池の作製に関する研究 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Ng Chi Huey
× Ng Chi Huey
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | The coupling of a solar cell with a super capacitor is gaining interest owing to its superior photo-to-electrical conversion efficiency and its in-situ energy storage ability for green and sustainable energy development. In this work, the electrochemical performances of the fabricated super capacitor and perovskite solar cell were individually measured for the fabrication of a photo-super capacitor. A Bi2O3/MnO2 based symmetrical and asymmetrical super capacitor were fabricated. The symmetrical super capacitor could charge up to 1.0 V, which gave a specific capacitance of 136.4 F/g at a scan rate of 2 mV/s. The power and energy densities of the bismuth-based symmetrical super capacitor were 51.8 W/kg and 7.1 Wh/kg, respectively and were improved to 25.6 Wh/kg and 115.3 W/kg when a Bi2O3/MnO2 positive electrode was integrated to a polypyrrole/reduced graphene oxide (PyR) negative electrode. It thus proven the feasibility of an asymmetrical super capacitor to promote the performance of a super capacitor. The dissatisfying stability performance of the Bi2O3/MnO2//PyR asymmetrical super capacitor (60% capacitance retained) prompted for screening of other pseudocapacitive materials. An asymmetrical super capacitor comprising a positive cobalt oxide/zinc oxide/reduced graphene oxide electrode (RZCo) and a negative polypyrrole/reduced graphene oxide electrode was then fabricated. A wide operational potential range for the RZCo//PyR asymmetrical super capacitor resulted in a high specific capacitance of 470.8 F/g, as opposed to the Bi2O3/MnO2 symmetrical super capacitor of 136.4 F/g and 144.1 F/g for the bismuth-based asymmetrical super capacitor, at a scan rate of 2mV/s, additionally exhibited 1.6-fold higher in energy and power densities, which fulfilling the criteria as the energy storage device for the photo-super capacitor. Perovskite solar cells were fabricated from a series of cesium based halide mixtures perovskite harvesting materials, denoted as CsPbBr3-xIx, where x = 0-0.3. An optimum iodide concentration of CsPbBr2.9I0.1 perovskite solar cell with an efficiency of 3.9% was fabricated. The solar cell achieved an open circuit voltage of more than 1.0 V and a fill factor of 64% by employing Spiro-OMeTAD as a hole transporting material with enhanced stability. The performances of the CsPbBr2.9I0.1 solar cell with P3HT/MoO3 hole transporting material was also investigated. The deeper HOMO and shallower LUMO level of the hole and electron transporting materials, respectively has achieved high Voc of 1.23 V, but with lower power conversion efficiency of 2.51% due to reduction in the Jsc, implies an additional charge loss processes at the interface of perovskite/HTM. In high humidity of more than 80 percent, the perovskite solar cell comprising CsPbBr2.9I0.1 achieved an efficiency of 0.46%. The perovskite solar cell retains 70% of its original efficiency after a week storage in dark and 33% efficiency retained under UV and air exposure at a high relative humidity of more than 80% for 24 hours. The integration of the perovskite solar cell and the asymmetrical super capacitor enabled simultaneous photoconversion and charge storage within the photo-super capacitor. The photovoltage and photocurrent measurements were successfully performed, evidencing that the photo-super capacitor was responsive to light illumination. Referred to the photovoltage measurement, zero voltage was presented at the first 50 s without the shine of light. Subsequently, the photovoltage was abruptly shooted up to ~80 mV and continue increasing to 90 mV for 100 s in the presence of light, and was then decreases drastically when light was switched off. To further proof the energy conversion and storage of the photo-super capacitor, the photocharged integrated device was galvanostatically discharged in dark at the current of 0.1 mA. As the integrated device reaches the cut off potential of 0.07 V, the discharging process took place in dark with the connection of only super capacitor’s electrodes, thus shows the workability of the photo-super capacitor. To enable practical application, improvizations such as optimizing thickness of each active layer and encapsulation of the photo-super capacitor are needed to prevent electrolyte loss. | |||||||
| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1. Introduction||2. Literature Reviews||3. Materials and Methods||4. Electrochemical Performances of Super Capacitors for Photo-Super Capacitor Application||5. Integration of Cesium-Based Perovskite Solar Cell Towards the Fabrication of Photo-Super Capacitor||6. Concluding Remarks and Recommendations for Future Research | |||||||
| 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308号 学位授与年月日：平成30年3月23日 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Perovskite | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Super capacitor | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Stability | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Photovoltage | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Photocurrent | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Photo-Super capacitor | |||||||
| アドバイザー | ||||||||
| 早瀬, 修二 | ||||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第308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 | 2018-03-23 | |||||||
| 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 | 平成29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 | 10.18997/00006818 | |||||||
| ID登録タイプ | JaLC | |||||||
