CPE-Na-Based Hole Transport Layers for Improving the Stability in Nonfullerene Organic Solar Cells: A Comprehensive Study

Authors: Mohamed Samir, Enas Moustafa, Osbel Almora, Magaly Ramírez-Como, Maria Pilar Montero-Rama, José G. Sánchez, Emilio Palomares, Josep Pallarès, and Lluis F. Marsal*