Direct comparison of structure and performance of vacuum- and solution-processed photovoltaic devices (F04)

• Subject Area: Solid State and Surface Chemistry, Material Synthesis ; Coating and Surface Technology ; Synthesis and Properties of Functional Materials
• Term: since 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 538767711

Project F4 takes solution ALD (from C1) to applications by demonstrating its use for depositing the light absorber layer in efficient solar cells. The project closes the ChemPrint cycle of innovation by combining atomic-level control in solution processing with performance quantifiers (with F3). It provides direct comparisons of processing techniques, between sALD and gALD on the one hand and between sALD and evaporation-based methods on the other hand (with F3), and demonstrate how the control of chemical bonds between deposit and substrate determines function (with S2, S3, S4, S5, F5, M2).

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1719: Next-generation printed semiconductors: Atomic-level engineering via molecular surface chemistry
• Applicant Institution: Friedrich-Alexander-Universität Erlangen-Nürnberg
• Project Head: Professor Dr. Julien Bachmann, Ph.D., since 7/2025