1. Catalonia Institute for Energy Research—IREC, Sant Adrià de Besòs, 08930 Barcelona, Spain
2. Department of Electronics and Biomedical Engineering, Universitat de Barcelona, 08028 Barcelona, Spain
3. Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
4. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
5. ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia, Spain
6. Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, 08019 Barcelona, Spain