In-Operando Nanoscale X‑ray Analysis Revealing the Local Electrical Properties of Rubidium-Enriched Grain Boundaries in Cu(In,Ga)Se2 Solar Cells

• Published in: ACS applied materials & interfaces Vol. 12; no. 51; pp. 57117 - 57123
• Main Authors: Plass, Christian T, Ritzer, Maurizio, Schöppe, Philipp, Schönherr, Sven, Zapf, Maximilian, Hafermann, Martin, Johannes, Andreas, Martínez-Criado, Gema, Segura-Ruiz, Jaime, Würz, Roland, Jackson, Philip, Schnohr, Claudia S, Ronning, Carsten
• Format: Journal Article
• Language: English
• Published: American Chemical Society 23.12.2020
• Subjects: Energy, Environmental, and Catalysis Applications; nano-XBIC; thin-film photovoltaics; alkali post-deposition treatment; CIGS; nano-XRF; rubidium

Chalcogenide Cu­(In,Ga)­Se2 solar cells yield one of the highest efficiencies among all thin-film photovoltaics. However, the variability of the absorber compositions and incorporated alkali elements strongly affect the conversion efficiency. Thus, effective strategies for spatially resolved trackin...