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A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries
Uniform size of Si nanowires (NWs) is highly desirable to enhance the performance of Si NW-based lithium-ion batteries. To achieve a narrow size distribution of Si NWs, the formation of bulk-like Si structures such as islands and chunks needs to be inhibited during nucleation and growth of Si NWs. W...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418421/ https://www.ncbi.nlm.nih.gov/pubmed/36133406 http://dx.doi.org/10.1039/d1na00844g |
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author | Kim, Dongheun Ahmed, Towfiq Crossley, Kenneth Baldwin, J. Kevin Ra Shin, Sun Hae Kim, Yeonhoo Sheehan, Chris Li, Nan Pete, Doug V. Han, Henry H. Yoo, Jinkyoung |
author_facet | Kim, Dongheun Ahmed, Towfiq Crossley, Kenneth Baldwin, J. Kevin Ra Shin, Sun Hae Kim, Yeonhoo Sheehan, Chris Li, Nan Pete, Doug V. Han, Henry H. Yoo, Jinkyoung |
author_sort | Kim, Dongheun |
collection | PubMed |
description | Uniform size of Si nanowires (NWs) is highly desirable to enhance the performance of Si NW-based lithium-ion batteries. To achieve a narrow size distribution of Si NWs, the formation of bulk-like Si structures such as islands and chunks needs to be inhibited during nucleation and growth of Si NWs. We developed a simple approach to control the nucleation of Si NWs via interfacial energy tuning between metal catalysts and substrates by introducing a conductive diffusion barrier. Owing to the high interfacial energy between Au and TiN, agglomeration of Au nanoparticle catalysts was restrained on a TiN layer which induced the formation of small Au nanoparticle catalysts on TiN-coated substrates. The resulting Au catalysts led to the nucleation and growth of Si NWs on the TiN layer with higher number density and direct integration of the Si NWs onto current collectors without the formation of bulk-like Si structures. The lithium-ion battery anodes based on Si NWs grown on TiN-coated current collectors showed improved specific gravimetric capacities (>30%) for various charging rates and enhanced capacity retention up to 500 cycles of charging–discharging. |
format | Online Article Text |
id | pubmed-9418421 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | RSC |
record_format | MEDLINE/PubMed |
spelling | pubmed-94184212022-09-20 A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries Kim, Dongheun Ahmed, Towfiq Crossley, Kenneth Baldwin, J. Kevin Ra Shin, Sun Hae Kim, Yeonhoo Sheehan, Chris Li, Nan Pete, Doug V. Han, Henry H. Yoo, Jinkyoung Nanoscale Adv Chemistry Uniform size of Si nanowires (NWs) is highly desirable to enhance the performance of Si NW-based lithium-ion batteries. To achieve a narrow size distribution of Si NWs, the formation of bulk-like Si structures such as islands and chunks needs to be inhibited during nucleation and growth of Si NWs. We developed a simple approach to control the nucleation of Si NWs via interfacial energy tuning between metal catalysts and substrates by introducing a conductive diffusion barrier. Owing to the high interfacial energy between Au and TiN, agglomeration of Au nanoparticle catalysts was restrained on a TiN layer which induced the formation of small Au nanoparticle catalysts on TiN-coated substrates. The resulting Au catalysts led to the nucleation and growth of Si NWs on the TiN layer with higher number density and direct integration of the Si NWs onto current collectors without the formation of bulk-like Si structures. The lithium-ion battery anodes based on Si NWs grown on TiN-coated current collectors showed improved specific gravimetric capacities (>30%) for various charging rates and enhanced capacity retention up to 500 cycles of charging–discharging. RSC 2022-03-09 /pmc/articles/PMC9418421/ /pubmed/36133406 http://dx.doi.org/10.1039/d1na00844g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Kim, Dongheun Ahmed, Towfiq Crossley, Kenneth Baldwin, J. Kevin Ra Shin, Sun Hae Kim, Yeonhoo Sheehan, Chris Li, Nan Pete, Doug V. Han, Henry H. Yoo, Jinkyoung A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries |
title | A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries |
title_full | A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries |
title_fullStr | A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries |
title_full_unstemmed | A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries |
title_short | A controlled nucleation and growth of Si nanowires by using a TiN diffusion barrier layer for lithium-ion batteries |
title_sort | controlled nucleation and growth of si nanowires by using a tin diffusion barrier layer for lithium-ion batteries |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418421/ https://www.ncbi.nlm.nih.gov/pubmed/36133406 http://dx.doi.org/10.1039/d1na00844g |
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