Journal Article

PUBDB-2024-06440

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Early-stage silver growth during sputter deposition on SiO$_2$ and polystyrene – Comparison of biased DC magnetron sputtering, high-power impulse magnetron sputtering (HiPIMS) and bipolar HiPIMS

Reck, K. A.Extern* ; Bulut, Y.Extern*DESY* ; Xu, Z.Extern* ; Liang, S.Extern* ; Strunskus, T.Extern* ; Sochor, B.Extern*DESY* ; Gerdes, H. ; Bandorf, R. ; Müller-Buschbaum, P.Extern* ; Roth, S. V.XFEL.EU*DESY* ; Vahl, A. ; Faupel, F. (Corresponding author)Extern*

2024
Elsevier Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.apsusc.2024.160392  doi:10.3204/PUBDB-2024-06440

Abstract: The integration of silver thin films into optoelectronic devices has gained much interest due to their exceptional properties in terms of conductivity and compatibility with flexible substrates. For this type of application, ultra-thin layers are desirable, because of their optical transparency. Standard direct current magnetron sputtering (DCMS) is known to lead to undesirable formation of islands at low effective film thicknesses on typical substrates like SiO2 or polystyrene (PS). Therefore, in this study, we explore high-power impulse magnetron sputtering (HiPIMS) with optional further acceleration of metal ions by biasing the substrate or an additional positive pulse (bipolar HiPIMS) for the fabrication of ultra-thin silver layers. The morphology and electrical properties of ultra-thin silver layers with selected effective thicknesses are characterized on SiO$_2$ and PS substrates. The growth evolution of characteristic parameters is further investigated by in-situ grazing-incidence small-angle X-ray scattering (GISAXS). The results show that HiPIMS deposition yields films with a higher density of clusters than DCMS leading to a percolation threshold at lower effective film thicknesses. This effect is amplified by further ion acceleration. Thus, we suggest HiPIMS as a promising technique for fabricating ultra-thin, conductive layers on organic and oxide substrates.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Sustainable Materials (FS-SMA)
3. PETRA-D (FS-PETRA-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. DFG project G:(GEPRIS)459798762 - In situ Untersuchungen von Keimbildungs- und Wachstumsprozessen bei niedriger Temperatur während des Hochleistungs-Impuls-Magnetron-Sputterns (459798762) (459798762)
4. FS-Proposal: I-20211138 (I-20211138) (I-20211138)

Experiment(s):

1. PETRA Beamline P03 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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