| Project/Area Number |
23K04872
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 35030:Organic functional materials-related
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| Research Institution | Shinshu University |
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Principal Investigator |
田 日 信州大学, 繊維学部, 特任准教授 (00807563)
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| Co-Investigator(Kenkyū-buntansha) |
金 翼水 信州大学, 学術研究院繊維学系, 教授 (40397302)
朱 春紅 信州大学, 学術研究院繊維学系, 准教授 (80773100)
施 建 信州大学, 学術研究院繊維学系, 准教授 (40735867)
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| Project Period (FY) |
2023-04-01 – 2026-03-31
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| Project Status |
Granted (Fiscal Year 2024)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2025: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2024: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | M13 Bsvteriophage / Biomaterials / Perovskite solar cells / ペロブスカイト太陽電池 / 光電変換効率 / 機能性バイオ物質 |
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| Outline of Research at the Start |
本研究では遺伝子組み換えにより開発したM13バクテリオファージに関して目的に合わせたアミノ酸官能基を持つ M13バクテリオファージを開発に基づいた新構造・新機能の解明とスズペロブスカイト太陽電池の性能向上を次の三段階で進める。
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| Outline of Annual Research Achievements |
This project initially aimed to explore M13 bacteriophage as a green additive for perovskite solar cells (PSCs), but reproducibility and compatibility issues led to a shift in focus. We redirected efforts towards other eco-friendly biomaterials including cellulose and peptides. In particular, sucrose emerged as a highly effective additive. Through thermal caramelisation, sucrose was converted into humin derivatives, which were then incorporated into PSCs. This novel additive significantly improved film quality and photovoltaic performance, demonstrating a new route for bio-inspired PSC engineering.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The research has progressed from initial M13 trials to systematic investigation of alternative biopolymer additives. We have developed a reproducible synthesis method to caramelise sucrose into humin, and successfully integrated it into perovskite precursor formulations. Characterisation by UV-vis, XPS, UPS, and HR-TEM confirmed its role in passivation and crystallisation control. We are currently conducting stability and scalability evaluations, with further testing in semi-pilot abrication under way.
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| Strategy for Future Research Activity |
The next phase will focus on broadening the application scope of humin-based additives, including layer-by-layer coating techniques and tandem solar architectures. Additionally, we will investigate sugar-derivative libraries to fine-tune functional groups for electronic compatibility. A secondary aim is to quantify environmental benefits via lifecycle and toxicity assessments, supporting the development of a full eco-certification profile. Joint publications and conference presentations are also planned for dissemination.
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