Thermoelectric conversion improvement of Co-free skutterudites through a multiscale approach

通过多尺度方法改进无钴方钴矿的热电转换

• 批准号: 22KF0336
• 负责人: Mele Paolo
• 金额: $ 1.47万
• 依托单位: Shibaura Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KF0336/
• 关键词: Skutterudites; doping; filler; SPS; quenching; thermoelectrics

An attempt of preparing the double filled skutterudites of composition (Sm,Nd)y(FexNi1-x)4Sb12 was made. Due to the small quantity of fillers, we tried, in collaboration with Genova University, to prepare a precursor Sm0.15Nd0.5Sb0.8 to reduce the error in the amount of rare earths. Unfortunately, after preparing the skutterudites and analyzing it via XRD and SEM, we found out that the precursor was contaminated with Ta, coming from the crucible used for the synthesis. So, waiting for the purchase of some Nd, the fellow successfully prepared three samples of skutterudite doped with Sn: Smy(FexNi1-x)4Sb11.5Sn0.5The three samples were prepared following the directions of collaborators which have recently studied the crossover of the system: X= 0.45 as n-type semiconductor; X = 0.55 as n-p crossover semiconductor; X = 0.65 as p-type semiconductor.Samples were then ground, sieved and densified by SPS (500 ℃ for 7 minutes)Room T Seebeck is promising (about -90 microV/K) and the samples will be sent soon to collaborators at NIMS to measure the thermal conductivity and power factor.

尝试制备了（Sm，Nd）y（FexNi（1-x））4Sb（12）双填充方钴矿。由于填料量少，我们尝试与热那亚大学合作，制备前驱体Sm 0.15 Nd 0.5 Sb 0.8，以减少稀土量的误差。不幸的是，在制备方钴矿并通过XRD和SEM对其进行分析后，我们发现前体被来自用于合成的坩埚的Ta污染。于是，等待购买一些Nd，这位老乡成功制备了三个掺Sn的方钴矿样品：Smy（FexNi_（1-x））_4Sb_（11.5）Sn_（0.5）三种样品是按照最近研究该系统交叉的合作者的方向制备的：X= 0.45为n型半导体，X = 0.55为n-p交叉半导体，X = 0.55为n型半导体。然后将样品研磨、筛分并通过SPS（500 ℃，7分钟）致密化。Seebeck室很有前途（约-90 microV/K），样品将很快被送到NIMS的合作者那里，以测量热导率和功率因数。

项目成果

Developing of a Printed Thin-Film Thermoelectric Device on a Paper Substrate

纸基印刷薄膜热电器件的开发

• 发表时间: 2022
• 作者: Giovanna Latronico;Hiroki Shigemune;Motoki Maeda;Cedric Bourges;Takao Mori;Paolo Mele
• 通讯作者: Paolo Mele

Polymer nanocomposite spectrum down-convertors for UV sensing

用于紫外传感的聚合物纳米复合光谱下变频器

• DOI: 10.1117/12.2630722
• 发表时间: 2022
• 期刊: Proceedings Volume 12229, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVI, 1222902
• 作者: Darwish Abdalla M.;Sarkisov Sergey S.;Patel Darayas N.;Wilson Simeon;Jackson Rachel;Moody Nichols;Mele Paolo;Latronico Giovanna;Koplitz Brent
• 通讯作者: Koplitz Brent

Co-Free Skutterudite Thin Films: Optimization of the Annealing Conditions and Thermoelectric Module Measurements

无钴方钴矿薄膜：退火条件和热电模块测量的优化

• 发表时间: 2022
• 作者: G. Latronico;P. Mele;C. Artini;Y. Kawamura;C. Sekine;T. Takeuchi;C. Bourges;T. Mori
• 通讯作者: T. Mori

Thermoelectric thin film devices for localized heat harvesting

用于局部热量收集的热电薄膜装置

• 发表时间: 2023
• 作者: Giovanna Latronico;Paolo Mele;Hiroki Shigemune;Motoki Maeda;Kimiyoshi Usami;Kaito Nagai;Cedric Bourges;Takao Mori
• 通讯作者: Takao Mori

Roadmap on thermoelectricity

• DOI: 10.1088/1361-6528/acca88
• 发表时间: 2023-07-16
• 期刊: NANOTECHNOLOGY
• 影响因子: 3.5
• 作者: Artini，Cristina;Pennelli，Giovanni;Trucchi，Daniele M.
• 通讯作者: Trucchi，Daniele M.