• openAccess   Diamond-based electrodes for organic photovoltaic devices 

      Kovalenko, Alexander; Ashcheulov, Petr; Guerrero, Antonio; Heinrichová, Patricie; Fekete, Ladislav; Vala, Martin; Weiter, Martin; Kratochvílová, Irena; Garcia-Belmonte, Germà Elsevier (2015-03)
      The present paper demonstrates the possibility of replacing indium–tin oxide (ITO) with heavily boron-doped diamond (BDD). Plasma Enhanced Chemically Vapor Deposited BDDs layers of various thicknesses were prepared containing ...
    • openAccess   Interface inductive currents and carrier injection in hybrid perovskite single crystals 

      Kovalenko, Alexander; Pospisil, Jan; Krajcovic, Jozef; Weiter, Martin; Guerrero, Antonio; Garcia-Belmonte, Germà AIP Publishing (2017-10)
      nterfaces between the absorbing perovskite and transporting layers are gaining attention as the key locus that governs solar cell operation and long term performance. The interplay of ionic and electronic processes, along ...
    • openAccess   Nanoscale mapping by electron energy-loss spectroscopy reveals evolution of organic solar cell contact selectivity 

      Guerrero, Antonio; Pfannmöller, Martin; Kovalenko, Alexander; Ripollés Sanchis, Teresa; Heidari, Hamed; Bals, Sara; Kaufmann, Louis-Dominique; Bisquert, Juan; Garcia-Belmonte, Germà Elsevier (2015)
      Organic photovoltaic (OPV) devices are on the verge of commercialization being long-term stability a key challenge. Morphology evolution during lifetime has been suggested to be one of the main pathways accounting for ...
    • openAccess   Role of Vertical Segregation in Semitransparent Organic Photovoltaics 

      Kovalenko, Alexander; Guerrero, Antonio; Garcia-Belmonte, Germà ACS Publications (2015)
      In this work, the efficiency of semitransparent organic photovoltaic (OPV) devices for low intensity applications is investigated as a function of the processing conditions. It is observed that a thermal treatment of the ...
    • openAccess   Shelf Life Degradation of Bulk Heterojunction Solar Cells: Intrinsic Evolution of Charge Transfer Complex 

      Guerrero, Antonio; Heidari, Hamed; Ripollés Sanchis, Teresa; Kovalenko, Alexander; Pfannmöller, Martin; Bals, Sara; Kaufmann, Louis-Dominique; Bisquert, Juan; Garcia-Belmonte, Germà Wiley (2015)
      Achievement of long-term stability of organic photovoltaics is currently one of the major topics for this technology to reach maturity. Most of the techniques used to reveal degradation pathways are destructive and/or do ...