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Electron-stimulated purification of platinum nanostructures grown via focused electron beam induced deposition

Platinum–carbon nanostructures deposited via electron beam induced deposition from MeCpPt(IV)Me(3) are purified during a post-deposition electron exposure treatment in a localized oxygen ambient at room temperature. Time-dependent studies demonstrate that the process occurs from the top–down. Electr...

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Detalles Bibliográficos
Autores principales: Lewis, Brett B, Stanford, Michael G, Fowlkes, Jason D, Lester, Kevin, Plank, Harald, Rack, Philip D
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4419598/
https://www.ncbi.nlm.nih.gov/pubmed/25977862
http://dx.doi.org/10.3762/bjnano.6.94
Descripción
Sumario:Platinum–carbon nanostructures deposited via electron beam induced deposition from MeCpPt(IV)Me(3) are purified during a post-deposition electron exposure treatment in a localized oxygen ambient at room temperature. Time-dependent studies demonstrate that the process occurs from the top–down. Electron beam energy and current studies demonstrate that the process is controlled by a confluence of the electron energy loss and oxygen concentration. Furthermore, the experimental results are modeled as a 2nd order reaction which is dependent on both the electron energy loss density and the oxygen concentration. In addition to purification, the post-deposition electron stimulated oxygen purification process enhances the resolution of the EBID process due to the isotropic carbon removal from the as-deposited materials which produces high-fidelity shape retention.