ListarInstitute of Advanced Materials (INAM) por tema "perovskites"
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Extracting in Situ Charge Carrier Diffusion Parameters in Perovskite Solar Cells with Light Modulated Techniques
American Chemical Society (2021-05-24)Frequency resolved methods are widely used to determine device properties of perovskite solar cells. However, obtaining the electronic parameters for diffusion and recombination by impedance spectroscopy has been so far ... -
Fully Inkjet-Printed Green-Emitting PEDOT:PSS/NiO/Colloidal CsPbBr3/SnO2 Perovskite Light-Emitting Diode on Rigid and Flexible Substrates
Wiley (2023)After establishing themselves as promising active materials in the field of solar cells, halide perovskites are currently being explored for fabrication of low-cost, easily processable, and highly efficient light-emitting ... -
High Quality Inkjet Printed-Emissive Nanocrystalline Perovskite CsPbBr3 Layers for Color Conversion Layer and LEDs Applications
Wiley (2022)Metal halide perovskites (MHPs) have shown outstanding optical emissive properties and can be employed in several optoelectronics devices. In contrast with materials of well-established technologies, which are prone to ... -
Integrated Optical Amplifier–Photodetector on a Wearable Nanocellulose Substrate
Wiley (2018)Flexible optoelectronics has emerged as an outstanding platform to pave the road toward vanguard technology advancements. As compared to conventional rigid substrates, a flexible technology enables mechanical deformation ... -
Interfacial Mechanism for Efficient Resistive Switching in Ruddlesden-Popper Perovskites for Non-volatile Memories
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 ... -
Interpretation of the Recombination Lifetime in Halide Perovskite Devices by Correlated Techniques
American Chemical Society (2022-08-03)The recombination lifetime is a central quantity of optoelectronic devices, as it controls properties such as the open-circuit voltage and light emission rates. Recently, the lifetime properties of halide perovskite devices ... -
Limited information of impedance spectroscopy about electronic diffusion transport: The case of perovskite solar cells
American Institute of Physics (2022)Impedance Spectroscopy (IS) has proven to be a powerful tool for the extraction of significant electronic parameters in a wide variety of electrochemical systems, such as solar cells or electrochemical cells. However, ... -
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 ... -
Nanoscale Perovskite‐Sensitized Solar Cell Revisited: Dye‐Cell or Perovskite‐Cell?
Wiley‐VCH Verlag (2020-03-20)A general and straightforward way of preparing few nanometer-sized well-separated MAPbIxBr3-x perovskite photosensitizers on the surface of ~1 μm thick mesoporous TiO2 photoanode was suggested via a two-step sequential ... -
Negative Transient Spikes in Halide Perovskites
American Chemical Society (2022-07-18)The internal crossfire of ionic and electronic effects in perovskite devices forms a complex analysis problem that has not been fully solved yet. Specifically, halide photovoltaic perovskites show a photoinduced ionic ... -
Online Meetings in Times of Global Crisis: Toward Sustainable Conferencing
American Chemical Society (2020-05-29)International conferences are an essential component of the timely exchange of ideas and results in the scientific community, where scientists present their results, gain new insights, and meet colleagues and collaborators. ... -
Organohalide Perovskites are Fast Ionic Conductors
Wiley (2017-10-11)Fast ionic conductors constitute a family of materials exhibiting high values of the ionic conductivity while their crystal structure remains rather rigid. Perovskite-like compounds are known to be good ionic conductors ... -
Origin of discrete donor–acceptor pair transitions in 2D Ruddlesden–Popper perovskites
American Institute of Physics (2024)Two-dimensional (2D) van der Waals nanomaterials have attracted considerable attention for potential use in photonic and light–matter applications at the nanoscale. Thanks to their excitonic properties, 2D perovskites are ... -
Origin of photovoltage in perovskite solar cells probed by first-principles calculations
(2018-06-04)Hybrid halide perovskite solar cells hold great potential for photovoltaic applications, but suffer, however, from anomalous current density-voltage characteristics. With a view to further understanding the performance of ... -
Photonic Processing of MAPbI3 Films by Flash Annealing and Rapid Growth for High-Performance Perovskite Solar Cells
Wiley (2022-10-06)Defects in polycrystalline halide perovskite films can cause a decrease of the solar cell photoconversion efficiency and stability. The perovskite film enhanced during crystal growth by controlling the processing method ... -
Physical Model for the Current–Voltage Hysteresis and Impedance of Halide Perovskite Memristors
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 ... -
Preferred Growth Direction by PbS Nanoplatelets Preserves Perovskite Infrared Light Harvesting for Stable, Reproducible, and Efficient Solar Cells
Wiley (2020)Formamidinium‐based perovskite solar cells (PSCs) present the maximum theoretical efficiency of the lead perovskite family. However, formamidinium perovskite exhibits significant degradation in air. The surface chemistry ... -
Resistance transient dynamics in switchable perovskite memristors
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 ... -
Spectral properties of the dynamic state transition in metal halide perovskite-based memristor exhibiting negative capacitance
American Institute of Physics (2021-02-15)The evolution of device properties in memristor switching between high- and low-resistance states is critical for applications and is still highly subjected to significant ambiguity. Here, we present the dynamic state ... -
Stabilization of Black FAPbI3 Perovskite by Interaction with the Surface of the Polymorphic Phase α-PbO
Wiley-VCH GmbH (2023-02-03)The black phase of formamidinium lead iodide, FAPbI3, is optically active and promising for optoelectronics applications. However, it is difficult to synthesize and stabilize at room temperature since it thermodynamically ...