• openAccess   Interplay Between Fullerene Surface Coverage and Contact Selectivity of Cathode Interfaces in Organic Solar Cells 

      Guerrero, Antonio; Dörling, Bernhard; Ripollés Sanchis, Teresa; Aghamohammadi, Mahdieh; Barrena, Esther; Campoy-Quiles, Mariano; Garcia-Belmonte, Germà ACS Publications (2013-04)
      Interfaces play a determining role in establishing the degree of carrier selectivity at outer contacts in organic solar cells. Considering that the bulk heterojunction consists of a blend of electron donor and acceptor ...
    • openAccess   Polarization Switching and Light-Enhanced Piezoelectricity in Lead Halide Perovskites 

      Coll, Mariona; Gómez, Andrés; Mas, Elena; Almora Rodríguez, Osbel; Garcia-Belmonte, Germà; Campoy-Quiles, Mariano; Bisquert, Juan American Chemical Society (2015-03)
      We investigate the ferroelectric properties of photovoltaic methylammonium lead halide CH3NH3PbI3 perovskite using piezoelectric force microscopy (PFM) and macroscopic polarization methods. The electric polarization is ...