Dresden 2026 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 46: Poster II
CPP 46.48: Poster
Donnerstag, 12. März 2026, 09:30–11:30, P5
Structure and Morphology Investigations of Perovskite Nanocrystal Film — •Azam Davoodabadifarahani1,2, Thomas Baier1, and Peter Müller-Buschbaum1 — 1TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany — 2University of Applied Sciences, Munich, Germany
In recent years, perovskite quantum dot solar cells with the ABX3 structure have shown great promise due to their high power conversion efficiency (PCE), high photoluminescence quantum yield (PLQY) and narrow photoluminescence (PL) peak. Within the presented work, the active layer consists of PQD thin films based on CsPbI3 and FAPbI3, which exhibit high photoelectric performance. However, CsPbI3 has a challenge with phase instability and FAPbI3 suffers from weak structural stability. To balance the performance and stability of the active layer, FAxCs1-xPbI3 PQDs are employed as the light-absorbing layer. The samples are evaluated using various optical and structural characterization techniques, such as PL spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and grazing incidence x-ray scattering (GIXS) to observe the influence of the synthesis process, temperature, and deposition techniques on the crystal size, orientation, phase, and stability, all of which determine the external quantum efficiency and optical performance.
Keywords: Pervoskite solar cell; Nanocrystal; Thin film; GIXS; Spin coating