1. Centre for Hybrid and Organic Solar Energy (CHOSE), University of Rome Tor Vergata, Via del Politecnico 1, Rome 00133, Italy
2. The Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Avda. Països Catalans, 16, Tarragona 43007, Spain
3. LASE-National University of Science and Technology ‘MISiS’, 4, Leninsky Prosp., Moscow 119049, Russian Federation
4. ICREA, Passeig Lluís Companys, 23, Barcelona 08010, Spain