• openAccess   Chemi-Structural Stabilization of Formamidinium Lead Iodide Perovskite by Using Embedded Quantum Dots 

      Masi, Sofia; Echeverría-Arrondo, Carlos; muhammed, kunnummal; Ngo, Thi Tuyen; Mendez, Perla F.; López-Fraguas, Eduardo; Macias-Pinilla, David F.; Planelles, Josep; Climente, Juan I.; Mora-Sero, Ivan American Chemical Society (2020-01-6)
      The approaches to stabilize the perovskite structure of formamidinium lead iodide (FAPI) commonly result in a blue shift of the band gap, which limits the maximum photoconversion efficiency. Here, we report the use of PbS ...
    • openAccess   Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals 

      García-Batlle, Marisé; Mayén Guillén, Javier; Chapran, Marian; Baussens, Oriane; Zaccaro, Julien; Verilhac, Jean‐Marie; Gros-Daillon, Eric; Guerrero, Antonio; Almora Rodríguez, Osbel; Garcia-Belmonte, Germà American Chemical Society (2022-03-11)
      The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive ...
    • openAccess   Enhanced Open-Circuit Voltage of Wide-Bandgap Perovskite Photovoltaics by Using Alloyed (FA1–xCsx)Pb(I1–xBrx)3 Quantum Dots 

      Suri, Mokshin; Hazarika, Abhijit; Larson, Bryon W.; Zhao, Qian; Vallés Pelarda, Marta; Siegler, Timothy; Abney, Michael; Ferguson, Andrew; Korgel, Brian A.; Luther, Joseph M. American Chemical Society (2019-07-16)
      We report a detailed study on APbX3 (A=Formamidinium (FA+), Cs+; X=I-, Br-) perovskite quantum dots (PQDs) with combined A- and X-site alloying that exhibit, both, a wide bandgap and high open circuit voltage (Voc) for the ...
    • openAccess   Morphology and Band Structure of Orthorhombic PbS Nanoplatelets: An Indirect Band Gap Material 

      Macias-Pinilla, David F.; Echeverría-Arrondo, Carlos; Gualdrón Reyes, Andrés Fabián; Agouram, Said; Muñoz-Sanjosé, Vicente; Planelles, Josep; Mora-Sero, Ivan; Climente, Juan I. American Chemical Society (2021-01-12)
      PbS quantum dots and nanoplatelets (NPLs) are of enormous interest in the development of optoelectronic devices. However, some important aspects of their nature remain unclear. Recent studies have revealed that colloidal ...
    • openAccess   Stabilization of Black Perovskite Phase in FAPbI3 and CsPbI3 

      Masi, Sofia; Gualdrón Reyes, Andrés Fabián; Mora-Sero, Ivan American Chemical Society (2020-05-28)
      Although halide perovskites allow a great versatility, the application on single-absorber solar cells restricts significantly the number of available materials. In this context, CsPbI3 and FAPbI3 (FA, formamidinium) present ...
    • openAccess   Structural and Electrical Investigation of Cobalt-Doped NiOx/Perovskite Interface for Efficient Inverted Solar Cells 

      Rezay Marand, Zahra; Kermanpur, Ahmad; Karimzadeh, Fathallah; Barea, Eva M; Hassanabadi, Ehsan; Halvani Anaraki, Elham; Julian-Lopez, Beatriz; Masi, Sofia; Mora-Sero, Ivan MDPI (2020-04-30)
      Inorganic hole-transporting materials (HTMs) for stable and cheap inverted perovskite-based solar cells are highly desired. In this context, NiOx, with low synthesis temperature, has been employed. However, the low ...
    • openAccess   Surface versus Bulk Currents and Ionic Space-Charge Effects in CsPbBr3 Single Crystals 

      Almora Rodríguez, Osbel; Matt, Gebhard Josed; These, Albert; Kanak, Andrii; Levchuk, Ievgen; Shrestha, Shreetu; Osvet, Andres; Brabec, Christoph J.; Garcia-Belmonte, Germà American Chemical Society (2022-04-25)
      CsPbBr3 single crystals have potential for application in ionizing-radiation detection devices due to their optimal optoelectronic properties. Yet, their mixed ionic–electronic conductivity produces instability and hysteretic ...