Listar Institute of Advanced Materials (INAM) por título

Mostrando ítems 384-403 de 522

    • openAccess   Radiative Recombination Processes in Halide Perovskites Observed by Light Emission Voltage Modulated Spectroscopy 

      S. Sánchez, Rafael; Villanueva-Antolí, Alexis; Bou, Agustín; Ruiz-Murillo, Marta; Mora-Sero, Ivan; Bisquert, Juan Wiley (2023)
      The kinetics of light emission in halide perovskite light-emitting diodes (LEDs) and solar cells is composed of a radiative recombination of voltage-injected carriers mediated by additional steps such as carrier trapping, ...

    • openAccess   Rational Design of Carbon Nitride Photoelectrodes with High Activity Toward Organic Oxidations 

      Pulignani, Carolina; Mesa, Camilo A.; Hillman, Sam; Uekert, Taylor; Gimenez, Sixto; Durrant, James R.; Reisner, Erwin Wiley (2022-12-12)
      Carbon nitride (CNx) is a light-absorber with excellent performance in photocatalytic suspension systems, but the activity of CNx photoelectrodes has remained low. Here, cyanamide-functionalized CNx (NCNCNx) was co-deposited ...

    • 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   Recent advances to understand morphology stability of organic photovoltaics 

      Guerrero, Antonio; Garcia-Belmonte, Germà SpringerOpen (2017)
      Organic photovoltaic devices are on the verge of commercialization with power conversion efficiencies exceeding 10 % in laboratory cells and above 8.5 % in modules. However, one of the main limitations hindering their ...

    • openAccess   Recent Developments in Process Digitalisation for Advanced Nanomaterial Syntheses 

      Iglesias, Diego; Haddad, Dina; Sans, Victor Wiley (2022-12-01)
      Digitalisation and industry 4.0 are set to profoundly change the way chemical and materials discovery and development work. The integration of multiple enabling technologies such as flow synthesis, automation, analytics, ...

    • openAccess   Recent Developments in the Modelling of Heterogeneous Catalysts for CO2 Conversion to Chemicals 

      Podrojková, Natália; Sans, Victor; Orinak, Andrej; Oriňaková, Renata Wiley-VCH Verlag (2020-04-06)
      Density functional theory (DFT) of the CO2 behavior on the catalyst surface provides valuable insights about the C=O bond activation, information about adsorption and dissociation of CO2, understanding the elementary steps ...

    • openAccess   Recent insights for achieving mixed halide perovskites without halide segregation 

      Gualdrón Reyes, Andrés Fabián; YOON, SEOG JOON; Mora-Sero, Ivan Elsevier (2018-10)
      The incorporation of halide perovskites in optoelectronics has provided a fast advance in the fabrication of new sensitizers with a balanced light-harvesting, free carrier transportation, and a progressive overcoming of ...

    • openAccess   Recombination reduction on lead halide perovskite solar cells based on low temperature synthesized hierarchical TiO2 nanorods 

      Jaramillo Quintero, Óscar A.; Solís de la Fuente, Mauricio; S. Sánchez, Rafael; Recalde, Ileana B.; Juarez-Perez, Emilio J.; Rincón, Marina; Mora-Sero, Ivan Royal Society of Chemistry (2016)
      Intensive research on the electron transport material (ETM) has been pursued to improve the efficiency of perovskite solar cells (PSCs) and decrease their cost. More importantly, the role of the ETM layer is not yet fully ...

    • openAccess   Recycled Photons Traveling Several Millimeters in Waveguides Based on CsPbBr3 Perovskite Nanocrystals 

      Navarro-Arenas, Juan; Suárez, Isaac; Gualdrón Reyes, Andrés Fabián; Mora-Sero, Ivan; Bisquert, Juan; Martínez-Pastor, Juan P. Wiley-VCH GmbH (2021-07-09)
      Reabsorption and reemission of photons, or photon recycling (PR) effect, represents an outstanding mechanism to enhance the carrier and photon densities in semiconductor thin films. This work demonstrates the propagation ...

    • openAccess   Redox-Switchable Complexes Based on Nanographene-NHCs 

      Ruiz Zambrana, César Luís; Dubey, Rajeev K.; Poyatos, Macarena; Mateo-Alonso, Aurelio; Peris, Eduardo Wiley (2022-05-30)
      A series of rhodium and iridium complexes with a N-heterocyclic carbene (NHC) ligand decorated with a perylene-diimide-pyrene moiety are described. Electrochemical studies reveal that the complexes can undergo two successive ...

    • openAccess   Redox-Switchable Cycloisomerization of Alkynoic Acids with Napthalenediimide-Derived N-Heterocyclic Carbene Complexes 

      Ruiz Zambrana, César Luís; Gutiérrez-Blanco, Ana; Gonell, Sergio; Poyatos, Macarena; Peris, Eduardo Wiley (2021-09-01)
      Two naphthalene-diimide (NDI) bis-imidazolium salts have been used as N-heterocyclic carbene (NHC) precursors for the preparation of NDI-functionalized complexes of rhodium and iridium of general formula [MCl(NDI-NHC)(COD)] ...

    • openAccess   Redox‐Active Hybrid Polyoxometalate‐Stabilised Gold Nanoparticles 

      Martin, Carmen; Kastner, Katharina; Cameron, Jamie; Hampson, Elizabeth; Alves Fernandes, Jesum; Gibson, Emma K.; Walsh, Darren; Sans, Victor; Newton, Graham Wiley (2020-08-17)
      We report the design and preparation of multifunctional hybrid nanomaterials through the stabilization of gold nanoparticles with thiol‐functionalised hybrid organic–inorganic polyoxometalates (POMs). The covalent attachment ...

    • openAccess   Reduced Graphene Oxides as Carbocatalysts in Acceptorless Dehydrogenation of N-Heterocycles 

      Mollar Cuni, Andrés; Ventura Espinosa, David; Martín Solans, Santiago; Garcia, Hermenegildo; Mata Martínez, Jose A American Chemical Society (2021-11-22)
      The catalytic properties of graphene-derived materials are evaluated in acceptorless dehydrogenation of N-heterocycles. Among them, reduced graphene oxides (rGOs) are active (quantitative yields in 23 h) under mild conditions ...

    • openAccess   Relative Impacts of Methylammonium Lead Triiodide Perovskite Solar Cells Based on Life Cycle Assessment 

      Alberola-Borràs, Jaume-Adrià; Vidal, Rosario; Juarez-Perez, Emilio J.; Mas, Elena; Guerrero, Antonio; Mora-Sero, Ivan Elsevier (2017-11-22)
      The environmental performance of four different device assembly procedures based on hybrid halide perovskite solar cell (PSC) were assessed from cradle to grave using life cycle assessment (LCA) methodology. In addition, ...

    • openAccess   Removing Instability-Caused Low-Frequency Features in Small Perturbation Spectra of Perovskite Solar Cells 

      Ravishankar, Sandheep; García-Batlle, Marisé; Bisquert, Juan; Garcia-Belmonte, Germà; Odrobina, Jann; Schiller, Carl-Albrecht American Chemical Society (2020-06-29)
      Small-perturbation frequency-domain techniques such as impedance spectroscopy and intensity-modulated photocurrent spectroscopy (IMPS) have become important methods for the investigation of the physical working mechanisms ...

    • openAccess   Resistance transient dynamics in switchable perovskite memristors 

      Bisquert, Juan; Bou, Agustín; Guerrero, Antonio; Hernández-Balaguera, Enrique AIP Publishing (2023-09)
      Memristor devices have been investigated for their properties of resistive modulation that can be used in data storage and brain-like computation elements as artificial synapses and neurons. Memristors are characterized ...

    • openAccess   Revealing giant exciton fine-structure splitting in two-dimensional perovskites using van der Waals passivation 

      Canet Albiach, Rodolfo Enrique; Kreĉmarová, Marie; Bosch Bailach, José; Gualdrón Reyes, Andrés Fabián; Rodríguez Romero, Jesús; Gorji, Setatira; Pashaei Adl, Hamid; Mora-Sero, Ivan; Martínez-Pastor, Juan P.; Sánchez Royo, Juan Francisco; Muñoz-Matutano, Guillermo ACS Publications (2022-09-08)
      Organic–inorganic layered perovskites are currently some of the most promising 2D van der Waals materials. Low crystal quality usually broadens the exciton line width, obscuring the fine structure of the exciton in ...

    • openAccess   Revealing the contribution of singlet oxygen in the photoelectrochemical oxidation of benzyl alcohol 

      Arcas, Ramón; Peris, Eduardo; Mas, Elena; Fabregat-Santiago, Francisco Royal Society of Chemistry (2021-02)
      Photoelectrochemical approaches are finding use in the transformation of organic molecules beyond water oxidation and CO2 reduction. Among the different reactions that can be performed, the selective oxidation of alcohols ...

    • openAccess   Reversible Formation of Gold Halides in Single‐Crystal Hybrid‐Perovskite/Au Interface upon Biasing and Effect on Electronic Carrier Injection 

      Pospisil, Jan; Guerrero, Antonio; Zmeskal, Oldrich; Weiter, Martin; Gallardo Bernal, Juan Jesus; Navas, Javier; Garcia-Belmonte, Germà Wiley (2019-08-08)
      Solar cells, light emitting diodes, and X‐ray detectors based on perovskite materials often incorporate gold electrodes, either in direct or indirect contact with the perovskite compound. Chemical interactions between ...

    • openAccess   Role of Metal Contacts on Halide Perovskite Memristors 

      Pérez-Martínez, José Carlos; Berruet, Mariana; Gonzales, Cedric; Salehpour, Saeed; Bahari, Ali; Arredondo, Belén; Guerrero, Antonio Wiley (2023-10-16)
      Halide perovskites are promising candidates for resistive memories (memristors) due to their mixed electronic/ionic conductivity and the real activation mechanism is currently under debate. In order to unveil the role of ...