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doi:10.22028/D291-40359
Titel: | Consolidation and performance gains in plasma-sintered printed nanoelectrodes |
VerfasserIn: | Engel, Lukas F. González-García, Lola Kraus, Tobias |
Sprache: | Englisch |
Titel: | Nanoscale Advances |
Bandnummer: | 5 |
Heft: | 16 |
Seiten: | 4124-4132 |
Verlag/Plattform: | RSC |
Erscheinungsjahr: | 2023 |
DDC-Sachgruppe: | 500 Naturwissenschaften |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | We report on the unusual, advantageous ageing of flexible transparent electrodes (FTEs) that were self-assembled from oleylamine-capped gold nanospheres (AuNPs) by direct nanoimprinting of inks with different particle concentrations (cAu = 3 mg mL−1 to 30 mg mL−1 ). The resulting lines were less than 2.5 mm wide and consisted of disordered particle assemblies. Small-Angle X-ray Scattering confirmed that particle packing did not change with ink concentration. Plasma sintering converted the printed structures into lines with a thin, electrically conductive metal shell and a less conductive hybrid core. We studied the opto-electronic performance directly after plasma sintering and after fourteen days of storage at 22 °C and 55% rH in the dark. The mean optical transmittance T 400–800 in the range from 400 nm to 800 nm increased by up to z 3%, while the sheet resistance Rsh strongly decreased by up to z 82% at all concentrations. We correlated the changes with morphological changes visible in scanning and transmission electron microscopy and identified two sequential ageing stages: (I) post-plasma relaxation effects in and consolidation of the shell, and (II) particle re-organization, de-mixing, coarsening, and densification of the core with plating of Au from the core onto the shell, followed by solid-state de-wetting (ink concentrations cAu < 15 mg mL−1 ) or stability (cAu $ 15 mg mL−1 ). The plating of Au from the hybrid core improved the FTEs' Figure of Merit FOM = T 400–800$Rsh−1 by up to z 5.8 times and explains the stable value of z 3.3%$Usq−1 reached after 7 days of ageing at cAu = 30 mg mL−1. |
DOI der Erstveröffentlichung: | 10.1039/D3NA00293D |
URL der Erstveröffentlichung: | http://dx.doi.org/10.1039/D3NA00293D |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-403599 hdl:20.500.11880/36371 http://dx.doi.org/10.22028/D291-40359 |
ISSN: | 2516-0230 |
Datum des Eintrags: | 4-Sep-2023 |
Bezeichnung des in Beziehung stehenden Objekts: | Electronic supplementary information |
In Beziehung stehendes Objekt: | https://www.rsc.org/suppdata/d3/na/d3na00293d/d3na00293d1.pdf |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Chemie NT - Materialwissenschaft und Werkstofftechnik |
Professur: | NT - Prof. Dr. Tobias Kraus NT - Keiner Professur zugeordnet |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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d3na00293d.pdf | 875,68 kB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons