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Scholz, Till ; Xu, Tianshan ; Sasindran, Ramkiran ; Köhler, Anna ; Moos, Ralf:
High-Rate Discontinuous Powder Aerosol Deposition of Thick Halide Perovskite Films.
2026
Veranstaltung: 9th International Conference on Perovskite Solar Cells and Optoelectronics - PSCO 2026
, 23.9.-25.9.2026
, Lausanne, Switzerland.
(Veranstaltungsbeitrag: Kongress/Konferenz/Symposium/Tagung
,
Poster
)
Angaben zu Projekten
| Projekttitel: |
Offizieller Projekttitel Projekt-ID Verständnis und Kontrolle über Defekte in Halogenidperowskiten durch defektchemische Untersuchungen in Verbindung mit optischen In-situ-Charakterisierungen und detaillierter optischer Spektroskopie 324052211 SFB 1585: Strukturierte Funktionsmaterialien für multiplen Transport in nanoskaligen räumlichen Einschränkungen 492723217 |
|---|---|
| Projektfinanzierung: |
Deutsche Forschungsgemeinschaft |
Abstract
Hybrid halide perovskites are breakthrough materials for next-generation optoelectronics, yet fabricating thick absorber layers remains a severe bottleneck for conventional solvent-based processing. To overcome this, Powder Aerosol Deposition (PAD) enables the dry processing of perovskites directly from mechanochemically synthesized powders. In this process, perovskite powders are first aerosolized by a carrier-gas. Driven by the pressure difference between the aerosol and deposition chambers, the particles are then immensely accelerated through specialized nozzle geometries, impacting the substrate to form dense films via Room-Temperature Impact Consolidation (RTIC). Depending on the material used, film thickness in the mm range can be achieved. To optimize efficiency, a novel modification of the PAD, the Discontinuous Powder Aerosol Deposition (DPAD), has been developed. By utilizing a pulsed carrier gas flow to aerosolize and deposit minimal powder quantities, DPAD provides a completely solvent-free, material-saving pathway optimized for fast thick-film fabrication.