A4: Correlative Microscopy and Functional Analysis of Atomic-Layer-Processed Thin-Film Solar Cells
Correlative Microscopy and Functional Analysis of Atomic-Layer-Processed Thin-Film Solar Cells
This doctoral project focuses on the development and correlative characterization of ultrathin photovoltaic absorber layers produced by atomic-layer additive manufacturing (ALAM). Building on recent breakthroughs in atomic-precision deposition of chalcogenide semiconductors (e.g., Sb₂S₃), the candidate will investigate how interfacial layers and processing conditions affect microstructure and device performance. Thin-film stacks will be fabricated by atomic layer deposition (ALD) and ALAM and deposited on specialized supports for correlative microscopy using 4D-STEM, SEM, and X-ray scattering. Structural data will be complemented by optical and electrochemical measurements to link nanoscale morphology with carrier dynamics and photovoltaic efficiency. The project integrates microscopy, spectroscopy, and machine learning to uncover structure–process–property relationships in functional thin films. Ultimately, the research will provide insights guiding the rational design of next-generation ultrathin solar cells with optimized interfaces and performance.
