Visualitza Departament: Física per autoria "f85c9821-8f80-4eec-8a6a-27d27432c955"
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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 ... -
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 ... -
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 ... -
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 ... -
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 ...