Browsing FCA_Articles by Keyword "perovskite solar cells"

Now showing items 1-15 of 15

    • 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   Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques 

      Bou, Agustín; Pockett, Adam; Raptis, Dimitrios; Watson, Trystan; Carnie, Matt; Bisquert, Juan American Chemical Society (2020-09-21)
      Small perturbation techniques have proven to be useful tools for the investigation of perovskite solar cells. A correct interpretation of the spectra given by impedance spectroscopy (IS), intensity-modulated photocurrent ...

    • closedAccess   Consolidation and Expansion of Perovskite Solar Cell Research 

      Bisquert, Juan American Chemical Society (2016-03)
      Hysteresis, band transport, polaron transport, balanced charge transport, diffusion length, vacancies, ion migration, defects, doping, traps, exciton binding energy, luminescence, hot carrier cooling, lasing, ampli fied ...

    • closedAccess   Effect of Mesostructured Layer upon Crystalline Properties and Device Performance on Perovskite Solar Cells 

      Listorti, Andrea; Juarez-Perez, Emilio J.; Frontera, Carlos; Roiati, Vittoria; García Andrade, Laura; Colella, Silvia; Rizzo, Aurora; Ortiz, Pablo; Mora-Sero, Ivan American Chemical Society (2015-04)
      One of the most fascinating characteristics of perovskite solar cells (PSCs) is the retrieved obtainment of outstanding photovoltaic (PV) performances withstanding important device configuration variations. Here we 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 ...

    • closedAccess   Electron Transport Layer-Free Solar Cells Based on Perovskite? Fullerene Blend Films with Enhanced Performance and Stability 

      Pascual, Jorge; Kosta, Ivet; Ngo, Thi Tuyen; Chuvilin, Andrey; Cabanero, Germán; Grande, Hans J.; Barea, Eva M; Mora-Sero, Ivan; Delgado, Juan Luis; Tena-Zaera, Ramón Wiley (2016-08)
      The solution processing of pinhole-free methylammonium lead triiodide perovskite–C70 fullerene (MAPbI3:C70) blend films on fluorine-doped tin oxide (FTO)-coated glass substrates is presented. Based on this approach, a ...

    • closedAccess   Enhanced Photovoltaic Performance of Mesoscopic Perovskite Solar Cells by Controlling the Interaction between CH3NH3PbI3 Films and CsPbX3 Perovskite Nanoparticles 

      Sidhik, Siraj; Esparza, Diego; Martínez-Benítez, Alejandro; López-Luke, Tzarara; Carriles, Ramon; Mora-Sero, Ivan; De la Rosa, Elder American Chemical Society (2017-02)
      We report the incorporation of all-inorganic highly stable CsPbX3 (X = I, Br) based perovskite nanoparticles (NPs) on top of a bulk CH3NH3PbI3perovskite thin film. This design utilizes the photogeneration ability of ...

    • openAccess   How Do PerovskiteSolar Cells Work? 

      Mora-Sero, Ivan Elsevier (2018-04-18)
      Since the first publication of all-solid perovskite solar cells (PSCs) in 2012, this technology has become probably the hottest topic in photovoltaics. Proof of this is the number of published papers and the citations that ...

    • openAccess   Ionic Dipolar Switching Hinders Charge Collection in Perovskite Solar Cells with Normal and Inverted Hysteresis 

      Almora Rodríguez, Osbel; López Varo, Pilar; Taek Cho, Kyung; Aghazada, Sadig; Meng, Wei; Hou, Yi; Echeverría-Arrondo, Carlos; Zimmermann, Iwan; Matt, Gebhard J.; Jiménez Tejada, Juan Antonio; Brabec, Christoph J.; Nazeeruddin, Mohammad Khaja; Garcia-Belmonte, Germà Elsevier (2019-06-15)
      Drift-diffusion modeling of the ionic dipole switching from the measurement of fast scanned and long pre-biased electrical response is proposed as a novel protocol for evaluation of limit hysteretic effects in perovskite ...

    • openAccess   Ionic Reactivity at Contacts and Aging of Methylammonium Lead Triiodide Perovskite Solar Cells 

      Carrillo, Jordi; Guerrero, Antonio; Rahimnejad, Sara; Almora Rodríguez, Osbel; Zarazúa, Isaac; Mas, Elena; Bisquert, Juan; Garcia-Belmonte, Germà Wiley (2016-02)
      Hybrid lead halide perovskites have reached very large solar to electricity power conversion efficiencies, in some cases exceeding 20%. The most extensively used perovskite-based solar cell configuration comprises CH3NH3PbI3 ...

    • openAccess   Operating Mechanisms of Mesoscopic Perovskite Solar Cells through Impedance Spectroscopy and J-V Modeling 

      Zarazúa, Isaac; Sidhik, Siraj; López-Luke, Tzarara; Esparza, Diego; De la Rosa, Elder; Reyes-Gomez, J.; Mora-Sero, Ivan; Garcia-Belmonte, Germà American Chemical Society (2017-11)
      The performance of perovskite solar cell (PSC) is highly sensitive to deposition conditions, the substrate, humidity, and the efficiency of solvent extraction. However, the physical mechanism involved in the observed changes ...

    • 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 ...

    • 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 ...

    • openAccess   Real-Time Observation of Iodide Ion Migration in Methylammonium Lead Halide Perovskites 

      Li, Cheng; Guerrero, Antonio; Yu, Zhong; Gräser, Anna; Melo Luna, Carlos Andres; Köhler, Jürgen; Bisquert, Juan; Hildner, Richard; Huettner, Sven Wiley (2017)
      Organic-inorganic metal-halide perovskites (e.g. CH3NH3PbI3-xClx) emerged as a promising opto-electronic material. However, the Shockley–Queisser Limit for the power conversion efficiency (PCE) of perovskite-based photovoltaic ...

    • 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. ...