1. Department of Electronics Engineering University of Rome Tor Vergata Via del Politecnico 1 00133 Rome Italy
2. CNR‐ISMN Via Salaria Km 29.300, Monterotondo 00017 Rome Italy
3. CHOSE—Centre for Hybrid and Organic Solar Energy Department of Electronics Engineering University of Rome Tor Vergata Via del Politecnico 1 00133 Rome Italy
4. Laboratory of Advanced Solar Energy (LASE) National University of Science and Technology ‘MISiS' Leninsky Prospekt 4 Moscow 119991 Russia