ListarFCA_Articles por tema "perovskite"

Mostrando ítems 1-18 de 18

    • openAccess   Abiotic depletion and the potential risk to the supply of cesium 

      Vidal, Rosario; Alberola-Borràs, Jaume-Adrià; Mora-Sero, Ivan Elsevier (2020-10)
      The petroleum exploration industry is the largest end user of cesium where it is employed in oil well drilling fluid. It has recently been broadly reported that the inclusion of cesium into perovskite for photovoltaics and ...

    • openAccess   An intrinsic electrical conductivity study of perovskite powders MAPbX3 (X = I, Br, Cl) to investigate its effect on their photovoltaic performance 

      Ullah, Shafi; Andrio, Andreu; Marí Guaita, Júlia; Ullah, Hanif; Méndez-Blas, Antonio; del Castillo, Roxana; Mari, Bernabé; Compañ, Vicente Royal Society of Chemistry (2024-02-07)
      An investigation into the intrinsic electrical conductivity of perovskite powders MAPbX3, where X represents iodine (I), bromine (Br), or chlorine (Cl), was conducted to explore its impact on their photovoltaic performance. ...

    • openAccess   Analysis of the Hysteresis Behavior of Perovskite Solar Cells with Interfacial Fullerene Self-Assembled Monolayers 

      Vallés Pelarda, Marta; Clasen Hames, Bruno; García-Benito, Inés; Almora Rodríguez, Osbel; Molina-Ontoria, Agustín; S. Sánchez, Rafael; Garcia-Belmonte, Germà; Martín, Nazario; Mora-Sero, Ivan American Chemical Society (2016-10)
      The use of self-assembled monolayers (SAMs) of fullerene derivatives reduces the hysteresis of perovskite solar cells (PSCs). We have investigated three different fullerene derivatives observing a decrease on hysteresis ...

    • openAccess   Analysis of the UV ozone-treated SnO2 electron transporting layer in planar perovskite solar cells for high performance and reduced hysteresis 

      Méndez, Perla; muhammed, kunnummal; Barea, Eva M; Masi, Sofia; Mora-Sero, Ivan Wiley - Blackwell (2019)
      Tin oxide (SnO2) is widely used as electron transporting layer (ETL) in perovskite solar cells (PSCs) because its good transparency, band alignment to perovskite and stability. The interface between the ETL and the ...

    • closedAccess   Conjugated Organic Cations to Improve the Optoelectronic Properties of 2D/3D Perovskites 

      Rodríguez Romero, Jesús; Clasen Hames, Bruno; Mora-Sero, Ivan; Barea, Eva M American Chemical Society (2017)
      Use of C6H5NH3I as an organic cation instead of CH3(CH2)3NH3I in the synthesis of 2D/3D perovskites (C6H5NH3I)2(CH3NH3I)n−1(PbI2)n leads to a material with significantly improved photovoltaic and optoelectronic properties ...

    • closedAccess   Control of I–V Hysteresis in CH3NH3PbI3 Perovskite Solar Cell 

      Kim, Hui-Seon; Jang, In-Hyuk; Ahn, Namyoung; Choi, Mansoo; Guerrero, Antonio; Bisquert, Juan; Park, Nam-Gyu ACS Publications (2015-11-09)
      Mismatch of current (I)-voltage (V) curves with respect to the scan direction, so-called I–V hysteresis, raises critical issue in MAPbI3 (MA = CH3NH3) perovskite solar cell. Although ferroelectric and ion migration have ...

    • openAccess   Electron injection and scaffold effects in perovskite solar cells 

      Anaya, Miguel; Zhang, Wei; Clasen Hames, Bruno; Li, Yuelong; Fabregat-Santiago, Francisco; Calvo, Mauricio E.; Snaith, Henry J.; Míguez, Hernán; Mora-Sero, Ivan Royal Society of Chemistry (2016-12)
      In spite of the impressive efficiencies reported for perovskite solar cells (PSCs), key aspects of their working principles, such as electron injection at the contacts or the suitability of the utilization of a specific ...

    • openAccess   Formation Criteria of High Efficiency Perovskite Solar Cells in Ambient Conditions 

      Aranda Alonso, Clara; Cristobal, Cesar; Shooshtari, Leyla; Li, Cheng; Huettner, Sven; Guerrero, Antonio Royal Society of Chemistry (2017)
      The field of lead halide perovskites for solar cell applications has recently reported impressive power conversion (PCE) above 22 % using complex mixed cation formulations. Very importantly, highest PCE have been obtained ...

    • closedAccess   General Working Principles of CH3NH3PbX3 Perovskite Solar Cells 

      González Pedro, Victoria; Juarez-Perez, Emilio J.; Arsyad, Waode Sukmawati; Barea, Eva M; Fabregat-Santiago, Francisco; Mora-Sero, Ivan; Bisquert, Juan American Chemical Society (2014)
      Organometal halide perovskite-based solar cells have recently realized large conversion efficiency over 15% showing great promise for a new large scale cost-competitive photovoltaic technology. Using impedance spectroscopy ...

    • openAccess   Inductive and Capacitive Hysteresis of Halide Perovskite Solar Cells and Memristors Under Illumination 

      Munoz-Diaz, Laura; Rosa, Álvaro Julián; Bou, Agustín; S. Sánchez, Rafael; Romero Herrero, Beatriz; John, Rohit Abraham; Kovalenko, Maksym V.; Guerrero, Antonio; Bisquert, Juan; Laura Muñoz-Díaz Frontiers Media (2022)
      The current–voltage curves of memristors exhibit significant hysteresis effects of use for information storage and computing. Here, we provide a comparison of different devices based on MAPbI3 perovskite with different ...

    • 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   Light-Induced Space-Charge Accumulation Zone as Photovoltaic Mechanism in Perovskite Solar Cells 

      Zarazúa, Isaac; Bisquert, Juan; Garcia-Belmonte, Germà American Chemical Society (2016)
      We fabricated formamidinium lead iodide perovskite solar cell for analysis of the photovoltaic mechanism based on the interpretation of the capacitance variation under illumination. It was shown that the low-frequency ...

    • closedAccess   Low-temperature processed electron collection layers of graphene/TiO 2 nanocomposites in thin film perovskite solar cells 

      Wang, Jacob Tse-Wei; Ball, James M.; Barea, Eva M; Abate, Antonio; Alexander-Webber, Jack A.; Huang, Jian; Saliba, Michael; Mora-Sero, Ivan; Bisquert, Juan; Snaith, Henry J.; Nicholas, Robin J. American Chemical Society (2014)
      The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, applications ...

    • openAccess   Organo-metal halide perovskite-based solar cells with CuSCN as the inorganic hole selective contact 

      Chavhan, Sudam; Miguel, Óscar; Grande, Hans-Jurgen; González Pedro, Victoria; S. Sánchez, Rafael; Barea, Eva M; Mora-Sero, Ivan; Tena-Zaera, Ramón Royal Society of Chemistry (2014-06)
      CuSCN is proposed as a cost-competitive hole selective contact for the emerging organo-metal halide perovskite-based solar cells. The CuSCN films have been deposited by a solution casting technique, which has proven to be ...

    • openAccess   Partial coverage methylammonium lead bromide films for solar cell application 

      Mhamdi, Asya; Vicente-Agut, Nuria; Bouazizi, Abdelaziz; Garcia-Belmonte, Germà Elsevier (2019-11-30)
      Hybrid perovskite compounds as methylammonium lead halides are currently been investigated for different optoelectronic applications. CH3NH3PbBr3 is a promising member because of its electronic structure and large bandgap ...

    • openAccess   Properties of Contact and Bulk Impedances in Hybrid Lead Halide Perovskite Solar Cells Including Inductive Loop Elements 

      Guerrero, Antonio; Garcia-Belmonte, Germà; Mora-Sero, Ivan; Bisquert, Juan; Kang, Yong Soo; Jacobsson, T. Jesper; Correa-Baena, Juan-Pablo; Hagfeldt, Anders American Chemical Society (2016)
      Impedance spectroscopy offers access to all the different electronic and ionic processes taking place simultaneously in an operating solar cell. To date, its use on perovskite solar cells has been challenging because of ...

    • closedAccess   Role of the Selective Contacts in the Performance of Lead Halide Perovskite Solar Cells 

      Juarez-Perez, Emilio J.; Wuβler, Michael; Fabregat-Santiago, Francisco; Lakus Wollny, Kerstin; Mankel, Eric; Mayer, Thomas; Jaegermann, Wolfram; Mora-Sero, Ivan American Chemical Society (2014-01)
      The effect of electron- and hole-selective contacts in the final cell performance of hybrid lead halide perovskite, CH3NH3PbI3, solar cells has been systematically analyzed by impedance spectroscopy. Complete cells with ...

    • openAccess   Surface Recombination and Collection Efficiency in Perovskite Solar Cells from Impedance Analysis 

      Zarazúa, Isaac; Han, Guifang; Boix, Pablo P; Mhaisalkar, Subodh; Fabregat-Santiago, Francisco; Mora-Sero, Ivan; Bisquert, Juan; Garcia-Belmonte, Germà American Chemical Society (2016-11)
      The large diffusion lengths recurrently measured in perovskite single crystals and films signal small bulk nonradiative recombination flux and locate the dominant carrier recombination processes at the outer interfaces. ...