Listar INAM_Articles por autoría "596e4386-6395-4f8f-950d-b7805c3dc732"
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Impedance Spectroscopy of Metal Halide Perovskite Solar Cells from the Perspective of Equivalent Circuits
Guerrero, Antonio; Bisquert, Juan; Garcia-Belmonte, Germà American Chemical Society (2021-12-08)Impedance spectroscopy (IS) provides a detailed understanding of the dynamic phenomena underlying the operation of photovoltaic and optoelectronic devices. Here we provide a broad summary of the application of IS to metal ... -
Impedance spectroscopy of perovskite/contact interface: Beneficial chemical reactivity effect
Aranda Alonso, Clara; Bisquert, Juan; Guerrero, Antonio AIP Publishing (2019-09-25)Understanding chemical reactivity of lead halide perovskite materials with contacts is crucial to improve the stability of these optoelectronic devices. The study of the physical and chemical interactions at the interfacial ... -
Insights into synaptic functionality and resistive switching in lead iodide flexible memristor devices
Jain, Muskan; Patel, Mayur Jagdishbhai; Liu, Lingli; Gosai, Jeny; Khemnani, Manish; Gogoi, Himangshu Jyoti; Chee, Mun Yin; Guerrero, Antonio; Lew, Wen Siang; Solanki, Ankur Royal Society of Chemistry (2024-01)Neuromorphic platforms are gaining popularity due to their superior efficiency, low power consumption, and adaptable parallel signal processing capabilities, overcoming the limitations of traditional von Neumann architecture. ... -
Interfacial Mechanism for Efficient Resistive Switching in Ruddlesden-Popper Perovskites for Non-volatile Memories
Solanki, Ankur; Guerrero, Antonio; Zhang, Qiannan; Bisquert, Juan; Sum, T. C. American Chemical Society (2020-01-16)Ion migration, one origin of current–voltage hysteresis, is the bane of halide perovskite optoelectronics. Herein, we leverage this unwelcome trait to unlock new opportunities for resistive switching using layered ... -
Interfacial Passivation of Perovskite Solar Cells by Reactive Ion Scavengers
Teymourinia, Hakimeh; Gonzales, Cedric; Gallardo Bernal, Juan Jesus; Salavati-Niasari, Masoud; Bisquert, Juan; Navas, Javier; Guerrero, Antonio American Chemical Society (2021-02-22)Lead halide perovskites suffer from uncontrolled ion migration and the interactions at the external contacts play a fundamental role in the hysteretic response and performance degradation kinetics. In this work, we passivate ... -
Ion-mediated hopping electrode polarization model for impedance spectra of CH3NH3PbI3
Almora Rodríguez, Osbel; González Lezcano, Alfredo; Guerrero, Antonio; Brabec, Christoph J.; Garcia-Belmonte, Germà American Institute of Physics (2020-08-18)Methylammonium lead iodide (CH3NH3PbI3) is one of the most attractive materials for optoelectronic applications, and it is the most typical absorber in perovskite solar cells, which are unprecedentedly successful devices ... -
Ionic Effect Enhances Light Emission and the Photovoltage of Methylammonium Lead Bromide Perovskite Solar Cells by Reduced Surface Recombination
Aranda Alonso, Clara; Guerrero, Antonio; Bisquert, Juan (2019-02-19)The achievement of optimal power conversion efficiencies (PCEs) in wide-band-gap perovskite solar cells (PSCs) is delayed by photovoltage losses associated with poor understanding of recombination dynamics. In this work, ... -
Kinetic and material properties of interfaces governing slow response and long timescale phenomena in perovskite solar cells.
Wang, Hongxia; Guerrero, Antonio; Bou, Agustín; Al-Mayouf, Abdullah; Bisquert, Juan Royal Society of Chemistry (2019-05-01)The last decade has witnessed the skyrocketing progress of perovskite solar cells (PSCs) with their current world record energy conversion efficiency reaching over 24%. Nevertheless, the unsatisfactory device stability and ... -
Ligand-free synthesis of aluminum-doped zinc oxide nanocrystals and their use as optical spacers in color-tuned highly efficient organic solar cells
Gaceur, Meriem; Dkhil, Sadok Ben; Duché, David; Bencheikh Aboura, Fatima; Simon, Jean-Jacques; Escoubas, Ludovic; Mansour, Mahdi; Guerrero, Antonio; Garcia-Belmonte, Germà; Liu, Xianjie; Fahlmann, Mats; Dachraoui, Walid; Diallo, Abdou Karim; Videlot-Ackermann, Christine; Margeat, Olivier; Ackermann, Jörg Wiley (2016)The color of polymer solar cells using an opaque electrode is given by the refl ected light, which depends on the composition and thickness of each layer of the device. Metal-oxide-based optical spacers are intensively ... -
Long-term potentiation mechanism of biological postsynaptic activity in neuro-inspired halide perovskite memristors
HERNÁNDEZ-BALAGUERA, ENRIQUE; Muñoz-Díaz, Laura; Bou, Agustín; Romero, Beatriz; Ilyassov, Baurzhan; Guerrero, Antonio; Bisquert, Juan IOP Publishing (2023-05-26)Perovskite memristors have emerged as leading contenders in brain-inspired neuromorphic electronics. Although these devices have been shown to accurately reproduce synaptic dynamics, they pose challenges for in-depth ... -
Mechanistic and Kinetic Analysis of Perovskite Memristors with Buffer Layers: The Case of a Two-Step Set Process
Gonzales, Cedric; Guerrero, Antonio ACS Publications (2023)With the increasing demand for artificially intelligent hardware systems for brain-inspired in-memory and neuromorphic computing, understanding the underlying mechanisms in the resistive switching of memristor devices ... -
Mobile Ion-Driven Modulation of Electronic Conductivity Explains Long-Timescale Electrical Response in Lead Iodide Perovskite Thick Pellets
García-Batlle, Marisé; Deumel, Sarah; Huerdler, Judith E.; Tedde, Sandro Francesco; Guerrero, Antonio; Almora Rodríguez, Osbel; Garcia-Belmonte, Germà American Chemical Society (2021-07-26)The favorable optoelectronic properties of metal halide perovskites have been used for X- and γ-ray detection, solar energy, and optoelectronics. Large electronic mobility, reduced recombination losses of the electron–hole ... -
Moving Ions Vary Electronic Conductivity in Lead Bromide Perovskite Single Crystals through Dynamic Doping
García-Batlle, Marisé; Baussens, Oriane; Amari, Smaïl; Zaccaro, Julien; Gros-Daillon, Eric; Verilhac, Jean‐Marie; Guerrero, Antonio; Garcia-Belmonte, Germà Wiley (2020-10)Metal halide perovskite single crystals are being explored as functional materials for a variety of optoelectronic applications. Among others, solar cells, field‐effect transistors, and X‐ and γ‐ray detectors have shown ... -
Nanocomposition of PEDOT:PSS with metal phthalocyanines as promising hole transport layers for organic photovoltaics
Rozhkova, Xeniya; Aimukhanov, Aitbek; Zeinidenov, Assylbek; Paygin, Vladimir; Valiev, Damir; Bisquert, Juan; Guerrero, Antonio; Alexeev, Alexander; Ilyassov, Baurzhan Elsevier (2023)PEDOT:PSS is one of the most widely used materials as a hole selective layer in organic photovoltaics due to its easy processing and high reproducibility. Unfortunately, the material is limited when testing new ... -
Noncapacitive hysteresis in perovskite solar cells at room temperature
Almora Rodríguez, Osbel; Aranda Alonso, Clara; Zarazúa, Isaac; Guerrero, Antonio; Garcia-Belmonte, Germà American Chemical Society (2016)The current density−voltage (J−V) curves of perovskite solar cells have been found to present a hysteresis-like distortion when the measurement is done by sweeping the applied voltage at different scan conditions. ... -
Origins and mechanisms of hysteresis in organometal halide perovskites
Li, Cheng; Guerrero, Antonio; Zhong, Yu; Huettner, Sven IOP (2017-04)Inorganic–organic halide organometal perovskites, such as CH3NH3PbI3 and CsPbI3, etc, have been an unprecedented rising star in the field of photovoltaics since 2009, owing to their exceptionally high power conversion ... -
Perovskite semiconductors for photoelectrochemical water splitting applications
Guerrero, Antonio; Bisquert, Juan Elsevier (2017-04)Perovskite oxide semiconductors have been used as efficient electrocatalysts for electrochemical reactions using an external applied bias. The review describes the different alternatives to use perovskite materials as ... -
Perovskite solar cells with versatile electropolymerized fullerene as electron extraction layer
Suárez, María B.; Aranda Alonso, Clara; Macor, Lorena; Durantini, Edgardo N.; Heredia, Daniel A.; Otero, Luis; Guerrero, Antonio; Gervaldo, Miguel Elsevier (2018-10-02)An electropolymerized layer of a C60 fullerene derivative was successfully used as selective contact and electron transport layer in perovskite solar cells. The electropolymeric film was formed over FTO electrodes by an ... -
Physical Model for the Current–Voltage Hysteresis and Impedance of Halide Perovskite Memristors
Berruet, Mariana; Pérez-Martínez, José Carlos; Romero, Beatriz; Gonzales, Cedric; Al-Mayouf, Abdullah; Guerrero, Antonio; Bisquert, Juan American Chemical Society (2022-03-01)An investigation of the kinetic behavior of MAPbI3 memristors shows that the onset voltage to a high conducting state depends strongly on the voltage sweep rate, and the impedance spectra generate complex capacitive and ... -
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 ...