Multi-modal characterization of kesterite thin-film solar cells: experimental results and numerical interpretation

Abdellatif Saadaldin (1) , Azat M. Slyamov (2) , Michael E Stuckelberger (3) , Peter S. Jørgensen (2) , Christian Rein (2) , Mariana Mar Lucas (2) , Tiago Ramos (2) , Angel Rodriguez-Fernandez (4) , Dominique Bernard (1) , Jens W Andreasen (2)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 DTU Energy - Department of Energy Conversion and Storage
3 CXNS - Center for X-ray and Nano Science
4 Skane University Hospital [Lund]

We report a multi-modal study of the electrical, chemical and structural properties of a kesterite thin-film solar cell by combining the spatially-resolved X-ray beam induced current and fluorescence imaging techniques for the evaluation of a fully functional device on a cross-section. The data allowed the correlation of the chemical composition, defects at interfaces and inhomogeneous deposition of the layers with the local charge-collection efficiency of the device. We support our observations with Monte Carlo simulations of high-energy X-ray interactions with the semiconductor device, and finite-volume modeling of the charge-collection efficiency.

Domaines: Matériaux

Abdellatif Saadaldin, Azat M. Slyamov, Michael E Stuckelberger, Peter S. Jørgensen, Christian Rein, et al.. Multi-modal characterization of kesterite thin-film solar cells: experimental results and numerical interpretation. Faraday Discussions, 2022, 239, pp.160-179. ⟨10.1039/D2FD00044J⟩. ⟨hal-03735474⟩