Szczegóły publikacji
Opis bibliograficzny
Direct electron beam writing of silver-based nanostructures / Katja Höflich, Jakub JURCZYK, Yucheng Zhang, Marcos V. Puydinger dos Santos, Maximilian Götz, Carlos Guerra-Nuñez, James P. Best, Czesław KAPUSTA, Ivo Utke // ACS Applied Materials & Interfaces ; ISSN 1944-8244. — 2017 — vol. 9 iss. 28, s. 24071-24077. — Bibliogr. s. [24076–24077], Abstr. — J. Jurczyk – dod. afiliacja: Empa – Swiss Federal Laboratories for Materials Science and Technology, Switzerland
Autorzy (9)
- Höflich Katja
- AGHJurczyk Jakub
- Zhang Yucheng
- Dos Santos Marcos V. Puydinger
- Götz Maximilian
- Guerra-Nuñez Carlos
- Best James P.
- AGHKapusta Czesław
- Utke Ivo
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 111626 |
|---|---|
| Data dodania do BaDAP | 2018-01-15 |
| DOI | 10.1021/acsami.7b04353 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | ACS Applied Materials & Interfaces |
Abstract
Direct writing utilizing a focused electron beam constitutes an interesting alternative to resist-based techniques, as it allows for precise and flexible growth onto any conductive substrate in a single-step process. One important challenge, however, is the identification of appropriate precursors which allow for deposition of the material of choice, e.g., for envisaged applications in nano-optics. In this regard the coinage metal silver is of particular interest since it shows a relatively high plasma frequency and, thus, excellent plasmonic properties in the visible range. By utilizing the precursor compound AgO2Me2Bu, direct writing of silver-based nanostructures via local electron beam induced deposition could be realized for the first time. Interestingly, the silver deposition was strongly dependent on electron dose; at low doses of 30 nC/μm2 a dominant formation of pure silver crystals was observed, while at higher electron doses around 104 nC/μm2 large carbon contents were measured. A scheme for the enhanced silver deposition under low electron fluxes by an electronic activation of precursor dissociation below thermal CVD temperature is proposed and validated using material characterization techniques. Finally, the knowledge gained was employed to fabricate well-defined two-dimensional deposits with maximized silver content approaching 75 at. %, which was achieved by proper adjustment of the deposition parameters. The corresponding deposits consist of plasmonically active silver crystallites and demonstrate a pronounced Raman signal enhancement of the carbonaceous matrix.
