【公開日：2024.07.25】【最終更新日：2024.06.07】
課題データ / Project Data
課題番号 / Project Issue Number
23WS0042
利用課題名 / Title
Perovskite electrostatic spraying
利用した実施機関 / Support Institute
早稲田大学 / Waseda Univ.
機関外・機関内の利用 / External or Internal Use
内部利用（ARIM事業参画者）/Internal Use (by 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）次世代バイオマテリアル/Next-generation biomaterials（副 / Sub）-
キーワード / Keywords
Electrostatic spraying, perovskite solar cells,電子顕微鏡/ Electronic microscope,ウエアラブルデバイス/ Wearable device,質量分析/ Mass spectrometry,X線回折/ X-ray diffraction,クロマトグラフィ/ Chromatography
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)
梅津 信二郎
所属名 / Affiliation
早稲田大学 創造理工学研究科 総合機械工学専攻
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
利用形態 / Support Type
（主 / Main）機器利用/Equipment Utilization（副 / Sub）-
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)
Perovskite is a crystal material with the general molecular formula ABX3. It has high photoelectric conversion efficiency and is widely used in photovoltaics, LED and other fields. Perovskite solar cells (PSCs) are solar cells that use perovskite structural materials as light-absorbing materials. They have the advantages of high efficiency, low cost, and high flexibility, and are the key development direction of future industrialization. This topic uses electrostatic spraying technology (EIP) to prepare the interlayer perovskite layer of perovskite solar cells. The instruments involved include a simple glove box for preparing the perovskite solution and an electron microscope required for result analysis.
実験 / Experimental
First, the MAPBI3 perovskite solution was prepared by mixing 700 μl of DMF solution, 700 μl of DMSO solution, 0.2g of MAL powder, and 0.48g of PBI2 powder in a simple glove box. Next, a glove box located in Kikui Town was used to conduct an electrostatic spraying experiment on a transparent glass substrate using 12KV high-voltage electricity in a nitrogen environment. After preparing an observable uniform and dense film, use NTRC's SEM electron microscope to observe it. Finally, XRD characterization was performed at Nishi Waseda’s physical property testing center to further analyze the film’s performance.
結果と考察 / Results and Discussion
Through SEM, we can find that the crystal size of the perovskite film prepared by the EIP method is larger than that of the perovskite film prepared by the spin coating method, ranging from 0.3 microns to 2 microns (Figs. 1 and 2). At low magnification, we can observe that based on FTO glass The crystal morphology in perovskite films deposited by horizontal EIP is comparable to the crystal morphology of perovskite films produced by other techniques such as spray coating. We can also observe the arrangement of crystals in the perovskite film through SEM. For example, in the cross-sectional SEM image, we can observe that the height distribution of the film is not uniform, and there are obvious height differences between different areas. By observing and comparing the crystal morphology of the film, we can make targeted parameter changes in the subsequent experiments to pursue a more perfect perovskite film.
図・表・数式 / Figures, Tables and Equations
Fig. 1 SEM image of perovskite film deposited by horizontal EIP method based on FTO glass
Fig. 2 SEM image of perovskite film deposited by horizontal EIP method based on ordinary glass
その他・特記事項（参考文献・謝辞等） / Remarks(References and Acknowledgements)
NONE
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