Electrochemical deposition of silicon and germanium from ionic liquids: interfacial processes, compounds and macroporous structures

离子液体中硅和锗的电化学沉积：界面过程、化合物和大孔结构

• 批准号: 248199931
• 负责人: Professor Dr. Frank Endres
• 金额: --
• 依托单位: Institut für Elektrochemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/248199931?language=en
• 关键词: Electrochemical; deposition; silicon; germanium; ionic

In this project structured deposits of silicon, germanium and of SiGe shall be made electrochemically in ionic liquids. The codeposition of silicon and germanium gives a material which changes its colour during deposition, likely due to a quantum confinement effect. With UV/Vis spectroelectrochemistry and XPS-measurements a deeper insight into the formation and the binding properties shall be obtained. Nanostructured silicon is of high interest as material in future lithium-ion-batteries , as such a material would allow higher energy densities than the usual lithium/graphite intercalation compounds. Both macroporous silicon and macroporous lithium/silicon shall be made. Furthermore it shall be investigated in more detail how the recently found solvation layers of ionic liquids behave during semiconductor deposition and how they influence the determination of the band gap by tunneling spectroscopy.

在该项目中，将在离子液体中通过电化学方法制备硅、锗和 SiGe 的结构化沉积物。硅和锗的共沉积产生了一种在沉积过程中改变颜色的材料，这可能是由于量子限制效应。通过紫外/可见光谱电化学和 XPS 测量，可以更深入地了解形成和结合特性。纳米结构硅作为未来锂离子电池的材料受到高度关注，因为这种材料比通常的锂/石墨插层化合物具有更高的能量密度。应当制备大孔硅和大孔锂/硅。此外，还应更详细地研究最近发现的离子液体溶剂化层在半导体沉积过程中的行为方式以及它们如何影响隧道光谱确定带隙。

项目成果

Electrodeposition of Crystalline Gallium-Doped Germanium and SixGe1−x from an Ionic Liquid at Room Temperature

• DOI: 10.1002/celc.201402374
• 发表时间: 2015-04
• 期刊: Southern Medical Journal
• 影响因子: 1.1
• 作者: A. Lahiri;M. Olschewski;T. Carstens;S. Abedin;F. Endres

Nanostructure of the H-terminated p-Si(111)/ionic liquid interface and the effect of added lithium salt.

H端p-Si(111)/离子液体界面的纳米结构及添加锂盐的影响

• DOI: 10.1039/c6cp06306c
• 发表时间: 2017
• 期刊: Physical chemistry chemical physics : PCCP
• 作者: V. Hoffmann;A. Lahiri;N. Borisenko;T. Carstens;G. Pulletikurthi;A. Borodin;R. Atkin;F. Endres
• 通讯作者: F. Endres

A simple and fast technique to grow free-standing germanium nanotubes and core-shell structures from room temperature ionic liquids

• DOI: 10.1016/j.electacta.2013.12.084
• 发表时间: 2014-03-01
• 期刊: ELECTROCHIMICA ACTA
• 影响因子: 6.6
• 作者: Lahiri, Abhishek;Willert, Anne;Endres, Frank
• 通讯作者: Endres, Frank

Synthesis of Silicon and Germanium Nanowire Assemblies by Template-Assisted Electrodeposition from an Ionic Liquid

• DOI: 10.1071/ch13549
• 发表时间: 2014-07
• 期刊: Australian Journal of Chemistry
• 影响因子: 1.1
• 作者: A. Willert;S. Abedin;F. Endres

Electrodeposition of Three Dimensionally Ordered Macroporous Germanium from Two Different Ionic Liquids.

两种不同离子液体电沉积三维有序大孔锗

• DOI: 10.1166/jnn.2016.10670
• 发表时间: 2016
• 期刊: Journal of nanoscience and nanotechnology
• 作者: J. Hao;JP. Zhao;YW. Zhang;XK. An;X. Liu;F. Endres
• 通讯作者: F. Endres