Listar INAM_Articles por autoría "0fcf10b6-a0e5-4d2d-a966-47e2c8b0e57a"
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Analytical model for light modulating impedance spectroscopy (LIMIS) in all-solid-state p-n junction solar cells at open-circuit
American Institute of Physics (2010-01-02)Potentiostatic impedance spectroscopy (IS) is a well-known tool for characterization of materials and electronic devices. It can be complemented by numerical simulation strategies relying on drift-diffusion equations without ... -
Ballistic-like space-charge-limited currents in halide perovskites at room temperature
American Institute of Physics (2021-12-13)The emergence of halide perovskites in photovoltaics has diversified the research on this material family and extended their application toward several fields in the optoelectronics, such as photo- and ionizing-radiation ...
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Beyond Protocols: Understanding the Electrical Behavior of Perovskite Solar Cells by Impedance Spectroscopy
Wiley (2023-08-11)Impedance spectroscopy (IS) is an effective characterization technique used to probe and distinguish charge dynamics occurring at different timescales in optoelectronic and electric devices. With the rapid rise of research ...
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Characterization of Aerosol Deposited Cesium Lead Tribromide Perovskite Films on Interdigited ITO Electrodes
John Wiley & Sons (2021-01-15)Aerosol deposition (AD) is a promising additive manufacturing method to fabricate low-cost, scalable films at room temperature, but has not been considered for semiconductor processing, so far. The successful preparation ...
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Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals
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 ...
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Degradation through Directional Self-Doping and Homogeneous Density of Recombination Centers Hindered by 1,8-Diiodooctane Additive in Non-Fullerene Organic Solar Cells
Wiley (2021-03-01)Non-fullerene-based organic solar cells (OSCs) have recently proven to perform with efficiencies above 18%. This is an important milestone for one of the most promising technologies in the fields of flexible and ... -
Device Performance of Emerging Photovoltaic Materials (Version 2)
Wiley-VCH Verlag (2021-11-11)Following the 1st release of the “Emerging photovoltaic (PV) reports”, the best achievements in the performance of emerging photovoltaic devices in diverse emerging photovoltaic research subjects are summarized, as reported ...
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Device Performance of Emerging Photovoltaic Materials (Version 2)
Wiley (2021-11-11)Following the 1st release of the “Emerging photovoltaic (PV) reports”, the best achievements in the performance of emerging photovoltaic devices in diverse emerging photovoltaic research subjects are summarized, as reported ...
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Device Physics of Hybrid Perovskite Solar cells: Theory and Experiment
Wiley (2018)Perovskite solar cells (PSCs) exhibit a series of distinctive features in their optoelectronic response which have a crucial influence on the performance, particularly for long-time response. Here, a survey of recent ...
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Direct observation of surface polarization at hybrid perovskite/Au interfaces by dark transient experiments
American Institute of Physics (2020-05-05)A distinctive feature of hybrid perovskite light-absorbing materials is the non-negligible ionic conductivity influencing photovoltaic performance and stability. Moving ions or vacancies can naturally accumulate at the ...
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Discerning recombination mechanisms and ideality factors through impedance analysis of high-efficiency perovskite solar cells
Elsevier (2018)The ubiquitous hysteresis in the current-voltage characteristic of perovskite solar cells (PSCs) interferes in a proper determination of the diode ideality factor (n), a key parameter commonly adopted to analyze recombination ...
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Do Capacitance Measurements Reveal Light-Induced Bulk Dielectric Changes in Photovoltaic Perovskites?
American Chemical Society (2018-06)Several studies have identified complex interactions between photogenerated carriers and the crystal lattice in perovskite materials for photovoltaics, which are regarded to have an inherently soft character. Light is known ...
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Effective Ion Mobility and Long-Term Dark Current of Metal Halide Perovskites with Different Crystallinities and Compositions
Wiley (2022-12)Ion transport properties in metal halide perovskite still constitute a subject of intense research because of the evident connection between mobile defects and device performance and operation degradation. In the case of ...
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High-sensitivity high-resolution X-ray imaging with soft-sintered metal halide perovskites
Nature Research (2021-09-23)To realize the potential of artificial intelligence in medical imaging, improvements in imaging capabilities are required, as well as advances in computing power and algorithms. Hybrid inorganic–organic metal halide ...
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Ion-mediated hopping electrode polarization model for impedance spectra of CH3NH3PbI3
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 ...
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Ionic Field Screening in MAPbBr3 Crystals Revealed from Remnant Sensitivity in X-ray Detection
American Chemical Society (2023-05-03)Research on metal halide perovskites as absorbers for X-ray detection is an attractive subject due to the optimal optoelectronic properties of these materials for high-sensitivity applications. However, the contact degradation ...
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Light intensity modulated impedance spectroscopy (LIMIS) in all-solid-state solar cells at open-circuit
Elsevier (2020)Potentiostatic impedance spectroscopy (IS) is a well-established characterization technique for elucidating the electric resistivity and capacitive features of materials and devices. For solar cells, by applying a small ...
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Long-term field screening by mobile ions in thick metal halide perovskites: understanding saturation currents
Wiley (2022-09-06)Metal halide perovskite-based semiconductor devices with micrometer-to-millimeter-thick perovskite layers show a current response upon polarization which evolves up to several hours, transiting several regimes. This is the ...
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Mobile Ion-Driven Modulation of Electronic Conductivity Explains Long-Timescale Electrical Response in Lead Iodide Perovskite Thick Pellets
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 ...
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Noncapacitive hysteresis in perovskite solar cells at room temperature
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. ...
