Dresden 2026 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster I
CPP 17.15: Poster
Montag, 9. März 2026, 19:00–21:00, P5
Early-Stage Growth and Morphological Evolution of Ag Electrodes during Sputter Deposition on PDINN — •Doan Duy Ky Le1, Kristian Reck2, Benedikt Sochor3, Thomas Strunskus2, Jungui Zhou3, Anuragk Keloth3, Lyuyang Cheng1, Sarathal Koyiloth Vayalil3, Stephan V. Roth3, and Peter Müller-Buschbaum1 — 1TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany — 2CAU, Kiel, Germany — 3DESY, Hamburg, Germany
The integration of sputtered metal electrodes with organic interlayers remains a key challenge for the scalable fabrication of organic solar cells (OSCs). PDINN is an efficient cathode interlayer, yet its behavior under sputter deposition is not well understood. Here, we use in situ GISAXS to resolve the nanoscale morphological evolution of Ag during direct-current magnetron sputtering (DCMS) onto PDINN thin films. Time-resolved scattering reveals distinct early-stage growth regimes, including the nucleation of small Ag clusters, their coalescence into medium-sized species, and the formation of laterally connected domains. Compared to thermally evaporated Ag, sputtered Ag achieves continuous coverage at significantly reduced thickness. These findings confirm the feasibility of sputter-deposited Ag/PDINN interfaces and establish a foundation for scalable electrode fabrication in next-generation OSCs.
Keywords: GISAXS; PDINN; Ag; Sputtering; Thin-Film Growth