Electrospray deposition of nanoparticles on TEM grids
- The authors have tested the prototype of an electrospray deposition system developed by the company RAMEM under its trademark IONER. To test the prototype and assess its performance, several materials have been sprayed onto TEM grids and the resulting particle distributions were compared to more traditional sample preparation strategies like the “drop on grid” method. Operation parameters such as the sample flow-rate, capillary – substrate distance, electric field strength and sampling period length have been optimized. It was found that the particles deposited by electrospray generally show a much more homogeneous spatial distribution on the substrate and a substantial increase of the number of single particles, which are much better suited to an automatic image evaluation procedure than the agglomerated particles observed otherwise. The applicability of the technique to a broad range of materials is demonstrated by various examples, but also the influence of the substrate, the choiceThe authors have tested the prototype of an electrospray deposition system developed by the company RAMEM under its trademark IONER. To test the prototype and assess its performance, several materials have been sprayed onto TEM grids and the resulting particle distributions were compared to more traditional sample preparation strategies like the “drop on grid” method. Operation parameters such as the sample flow-rate, capillary – substrate distance, electric field strength and sampling period length have been optimized. It was found that the particles deposited by electrospray generally show a much more homogeneous spatial distribution on the substrate and a substantial increase of the number of single particles, which are much better suited to an automatic image evaluation procedure than the agglomerated particles observed otherwise. The applicability of the technique to a broad range of materials is demonstrated by various examples, but also the influence of the substrate, the choice of the particular TEM grid, on the obtained spatial particle distribution is assessed.…
Autor*innen: | Johannes Mielke, P. Dohányosová, S. Lopez, Vasile-Dan HodoroabaORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Microscopy and Microanalysis |
Jahr der Erstveröffentlichung: | 2016 |
Verlag: | Cambridge |
Jahrgang/Band: | 22 |
Ausgabe/Heft: | Suppl 3 |
Erste Seite: | 1846 |
Letzte Seite: | 1847 |
DDC-Klassifikation: | Naturwissenschaften und Mathematik / Chemie / Analytische Chemie |
Freie Schlagwörter: | Electron microscopy; Electrspray deposition; Nanoparticles; Sample preparation |
DOI: | 10.1017/S1431927616010072 |
URL: | https://www.cambridge.org/core/journals/microscopy-and-microanalysis/article/electrospray-deposition-of-nanoparticles-on-tem-grids/459E634B7F74D474A19E15E69DA82E5D |
ISSN: | 1431-9276 |
ISSN: | 1435-8115 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 24.11.2016 |
Referierte Publikation: | Nein |