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Investigation of Plasmonic Gold Nanostructures for Enhancement of Organic Solar Cells
http://hdl.handle.net/10191/00051697
http://hdl.handle.net/10191/00051697a6131085-4ece-4396-b633-e97fe8eabcd4
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本文 (6.0 MB)
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要旨 (142.9 kB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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| 公開日 | 2020-07-02 | |||||
| タイトル | ||||||
| タイトル | Investigation of Plasmonic Gold Nanostructures for Enhancement of Organic Solar Cells | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Organic solar cells | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Photovoltaic devices | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Gold nanoparticles | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Gold quantum dots | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Plasmonic nanostructures | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Grating-coupled surface plasmon resonance | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Nanoimprinting | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_46ec | |||||
| タイプ | thesis | |||||
| その他のタイトル | ||||||
| その他のタイトル | 有機太陽電池高性能化のためのプラズモニック金ナノ構造の検討 | |||||
| 著者 |
Phetsang, Sopit
× Phetsang, Sopit |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Organic solar cells (OSCs) are particularly promising candidates for next-generation renewable power sources. Although the OSCs provide excellent power conversion efficiency (PCE), a short carrier diffusion length limits the photoactive layer thickness, resulting in a low light absorption and efficiency in the devices. Light management plays an important role for light harvesting enhancement in OSCs. The utilization of advanced nanomaterials and the design of device structures for broadening light absorption have gained attraction in order to achieve great photovoltaic performances in OSCs. Additionally, plasmonic nanostructures have been extensively used to increase light trapping and broaden optical absorption in photovoltaic devices. In this study, gold nanoparticles (AuNPs) with different sizes and shapes, consisting of gold quantum dots (AuQDs), gold nanospheres (AuNSs), and gold nanorods (AuNRs) were included within the devices to improve the photovoltaic performances and the synergistic effects from the combination of plasmonic nanostructures (AuQDs/AuNPs, AuQDs/metallic grating, and AuNSs:AuNRs/metallic grating) on the OSCs performances were also investigated. Three work chapters are demonstrated. Firstly, the incorporation of AuQDs and plasmonic AuNPs for OSCs enhancement is described. An important challenge in this part is to apply AuQDs to organic light harvesting systems. AuQDs absorb the UV light and generate visible light as fluorescence emission while AuNPs provide the localized surface plasmon resonance effect. The combination of AuQDs and AuNPs into the OSCs system can enhance the photovoltaic performances due to the absorption of the fluorescence from the AuQDs and energy/electron transfer from the AuQDs to the AuNPs, leading to a 13% improvement in the PCE. Secondly, an enhancement of OSCs performances by incorporating AuQDs together with metallic grating nanostructure is demonstrated. Extending absorption in UV regions by AuQDs is proposed and the fluorescence originated from AuQDs could act as additional light source, enhancing a high photocurrent in the developed device. Moreover, grating-coupled surface plasmon resonance (GCSPR) can increase the optical absorption path length of the devices. Interestingly, the synergistic effect of AuQDs and GCSPR in the developed OSCs exhibited better electrical and optical properties, leading to an enhancement of photocurrent with PCE improvement of approximately 20%. Finally, effect of AuNSs/AuNRs hybrid with metallic grating nanostructure for OSCs enhancement is investigated. The synergistic effect of the multi-LSPR and GCSPR is expected to enhance the optical path length within the devices. AuNSs/AuNRs hybrid were added in a hole transport layer. As compared to reference cell, the developed OSCs exhibited higher photovoltaic performances by increasing both of short-circuit current density (J_<sc>) and PCE with large enhancements of ca. 16.23% and 14.06%, respectively. The results suggest that the incorporation of metallic nanostructures inside the developed photovoltaic devices can improve the OSCs efficiency by increasing broadband absorption and improving electrical property. Therefore, the proposed OSCs could be further developed in practical application. | |||||
| 書誌情報 | p. 1-122 | |||||
| 著者版フラグ | ||||||
| 値 | ETD | |||||
| 学位名 | ||||||
| 学位名 | 博士(工学) | |||||
| 学位授与機関 | ||||||
| 学位授与機関名 | 新潟大学 | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 2019-09-20 | |||||
| 学位授与番号 | ||||||
| 学位授与番号 | 13101甲第4659号 | |||||
| 学位記番号 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 新大院博(工)甲第496号 | |||||
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Phetsang, Sopit, n.d., Investigation of Plasmonic Gold Nanostructures for Enhancement of Organic Solar Cells: p. 1–122.
