| Laboratoire de Physique des Interfaces et des Couches Minces |  |
Journal articles
Hydrogen Plasma-Assisted Growth of Gold Nanowires
Abstract : Because of their innocuity, Au nanowires present an interesting field of applications in biology and, particularly, in cancer therapy. Since their morphology and distribution can greatly affect their performances, being able to control their mode of growth is important. Various elaboration techniques including “top-down” and “bottom-up” approaches have been developed. In this work, we propose an efficient maskless method to grow Au nanowires with the help of hydrogen plasma treatment of Au thin films. We have been able to grow Au nanowires by taking advantage of spinodal dewetting of an Au thin film and the supply of silicon radicals resulting from hydrogen plasma etching of amorphous silicon coating the walls of the reactor. A variety of techniques have been applied to study the microstructure and the optical properties of Au nanowires. A strong photothermal effect of Au nanowires has been demonstrated with the help of visible laser light. In order to study the nanowire growth, the transport of Au atoms is discussed, and a growth mechanism is proposed.
https://hal.archives-ouvertes.fr/hal-03030277
Contributor : Pere Roca I Cabarrocas <>
Submitted on : Monday, December 14, 2020 - 7:10:09 PM
Last modification on : Friday, January 15, 2021 - 4:22:03 PM
Contributor : Pere Roca I Cabarrocas <>
Submitted on : Monday, December 14, 2020 - 7:10:09 PM
Last modification on : Friday, January 15, 2021 - 4:22:03 PM
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