【公開日：2024.07.25】【最終更新日：2024.06.26】
課題データ / Project Data
課題番号 / Project Issue Number
23NM5221
利用課題名 / Title
Lead-free stable and high-efficiency perovskite solar cell
利用した実施機関 / Support Institute
物質・材料研究機構 / NIMS
機関外・機関内の利用 / External or Internal Use
内部利用（ARIM事業参画者以外）/Internal Use (by non ARIM members)
技術領域 / Technology Area
【横断技術領域 / Cross-Technology Area】（主 / Main）物質・材料合成プロセス/Molecule & Material Synthesis（副 / Sub）計測・分析/Advanced Characterization
【重要技術領域 / Important Technology Area】（主 / Main）マテリアルの高度循環のための技術/Advanced materials recycling technologies（副 / Sub）-
キーワード / Keywords
接触角計/ Contact angle meter, Perovskite Solar Cell
利用者と利用形態 / User and Support Type
利用者名（課題申請者）/ User Name (Project Applicant)
イスラム アシュラフル
所属名 / Affiliation
物質・材料研究機構
共同利用者氏名 / Names of Collaborators in Other Institutes Than Hub and Spoke Institutes
ARIM実施機関支援担当者 / Names of Collaborators in The Hub and Spoke Institutes
服部晋也
利用形態 / Support Type
（主 / Main）機器利用/Equipment Utilization（副 / Sub）,技術補助/Technical Assistance
利用した主な設備 / Equipment Used in This Project
報告書データ / Report
概要（目的・用途・実施内容）/ Abstract (Aim, Use Applications and Contents)
Despite the advantageous optical bandgap and encouraging development in hybrid organic-inorganic PSC, the instability from
moisture and heat arising from the organic constituents seriously impedes its commercialization. Our work aimed to find alternative hole transport materials for high-performance CsPbIBr2 PSCs. Therefore, a solution-processed NiOx was employed in inverted CsPbIBr2 PSCs with a bridged self-assembled monolayer as hole selective layer. The contact angle meter is utilized in this work to distinguish the solvent wettability on different hole transport layers and the follow-up perovskite hydrophobicity.
実験 / Experimental
One drop of perovskite solvent is dripped onto the hole transport layer by syringe as fast as possible. Meanwhile, take the photo by contact angle meter and analyze the angle of the droplet. Using the same approach the film hydrophobicity result is also obtained with water drop. (Fig.1-4)
結果と考察 / Results and Discussion
The contact angle meter is utilized in this work to distinguish the solvent wettability on different hole transport layers and the follow-up perovskite hydrophobicity. As a result, the modification of bilayered structure with NiOx/Monolayer as hole selective layer remarkably reduced the contact angle, indicating the preferable wettability of perovskite solution on the hole transport layer. In addition, the increased contact angle of water droplet shows the good hydrophobicity and contributes to improved stability. Therefore, the modified perovskite solar cell shows much enhanced crystallization and long-term stability.
図・表・数式 / Figures, Tables and Equations
Fig. 1 Contact angle of water on ITO substrate
Fig. 2 Contact angle of water on NiOx
Fig. 3 Contact angle of water on Monolayer
Fig. 4 Contact angle of perovskite solvent on modified HTL
その他・特記事項（参考文献・謝辞等） / Remarks(References and Acknowledgements)
成果発表・成果利用 / Publication and Patents
論文・プロシーディング（DOIのあるもの） / DOI (Publication and Proceedings)
口頭発表、ポスター発表および、その他の論文 / Oral Presentations etc.
特許 / Patents
特許出願件数 / Number of Patent Applications：0件
特許登録件数 / Number of Registered Patents：0件