Listar por tema "perovskites"
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Accelerating the Assessment of Hysteresis in Perovskite Solar Cells
American Chemical Society (2024)Halide perovskite materials have reached important milestones in the photovoltaic field, positioning them as realistic alternatives to conventional solar cells. However, unavoidable kinetic phenomena have represented a ... -
Advances in Storage Batteries, Layered Hybrid Perovskites and Organic Photovoltaics, and Plasma Activated Ammonia Synthesis
American Chemical Society (2021-01-28)The Energy Spotlight in this issue features three articles recently published in ACS Energy Letters. These highlights are presented by our EAB members, Yan Yu, Ivan Mora-Sero ́ ́, and Jason C. Hicks. They have highlighted ... -
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 ... -
Blade Coating High-Quality Formamidinium–Cesium Lead Halide Perovskites with Green Solvent for Efficient and Stable Solar Cells
Wiley (2022)Perfecting large-area perovskite film coating technology remains a key challenge to commercialize perovskite solar cells. Herein, nontoxic dimethyl sulfoxide (DMSO) is recommended as the only solvent to fabricate formamidinium ... -
Boosting Long-Term Stability of Pure Formamidinium Perovskite Solar Cells by Ambient Air Additive Assisted Fabrication
American Chemical Society (2021-09-13)Due to the high industrial interest for perovskite-based photovoltaic devices, there is an urgent need to fabricate them under ambient atmosphere, not limited to low relative humidity (RH) conditions. The formamidinium ... -
Buried Interface Passivation of Perovskite Solar Cells by Atomic Layer Deposition of Al2O3
American Chemical Society (2023-04-14)Despite having long excited carrier lifetimes and high mobilities in hybrid halide perovskite materials, conventional (n-i-p) devices exhibit significant interfacial nonradiative recombination losses that are little ... -
Chemi-Structural Stabilization of Formamidinium Lead Iodide Perovskite by Using Embedded Quantum Dots
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 ... -
Combining Perovskites and Quantum Dots: Synthesis, Characterization, and Applications in Solar Cells, LEDs, and Photodetectors
Wiley (2022)Metal halide perovskites having high defect tolerance, high absorption characteristics, and high carrier mobility demonstrate great promise as potential light harvesters in photovoltaics and optoelectronics and have ... -
Comparison of Perovskite Solar Cells with other Photovoltaics Technologies from the Point of View of Life Cycle Assessment
Wiley (2021)A review of the life cycle sustainability of perovskite solar cells (PSCs) is presented, distinguishing results between simulated laboratory‐based and simulated industrial‐based PSCs, comparing this technology with the ... -
Current Challenges in the Development of Quantum Dot Sensitized Solar Cells
Wiley (2020-07)Quantum dot sensitized solar cells (QDSSCs) have experienced a continuous performance growth in the past years presenting a photoconversion efficiency > 13%. QDSSCs constitute a smart approach to take advantage of the ... -
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 ... -
Device physics recipe to make spiking neurons
American Institute of Physics (2023-09-26)Neurons, which are made of biological tissue, exhibit cognitive properties that can be replicated in various material substrates. To create brain-inspired computational artificial systems, we can construct microscopic ... -
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 ... -
Dynamic Instability and Time Domain Response of a Model Halide Perovskite Memristor for Artificial Neurons
American Chemical Society (2022-04-22)Memristors are candidate devices for constructing artificial neurons, synapses, and computational networks for brainlike information processing and sensory-motor autonomous systems. However, the dynamics of natural neurons ... -
Electrical Charge Coupling Dominates the Hysteresis Effect of Halide Perovskite Devices
American Chemical Society (2023-01-24)Hysteresis effects in ionic-electronic devices are a valuable resource for the development of switching memory devices that can be used in information storage and brain-like computation. Halide perovskite devices show ... -
Energy Spotlight. Stabilization of Perovskite Solar Cells
American Chemical Society (2021-11-12)Long-term operational stability remains a major challenge in the commercialization of perovskite solar cells (PSCs). While the major thrust of recent research effort has been on understanding the degradation mechanism, ... -
Enhanced Open-Circuit Voltage of Wide-Bandgap Perovskite Photovoltaics by Using Alloyed (FA1–xCsx)Pb(I1–xBrx)3 Quantum Dots
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 ... -
Enhanced operational stability through interfacial modification by active encapsulation of perovskite solar cells
AIP Publishing (2020)Encapsulates are, in general, the passive components of any photovoltaic device that provides the required shielding from the externally stimulated degradation. Here we provide comprehensive physical insight depicting a ... -
Enhancement of the Performance of Perovskite Solar Cells, LEDs, and Optical Amplifiers by Anti-Solvent Additive Deposition
Wiley (2017-02-17)The efficiency of perovskite optoelectronic devices is increased by a novel method; its suitability for perovskite solar cells, light-emitting diodes, and optical amplifiers is demonstrated. The method is based on the ... -
Enhancing the Electronic Properties and Stability of High-EfficiencyTin-Lead Mixed Halide Perovskite Solar Cells via DopingEngineering
American Chemical Society (2022-03-31)Overcoming Voc loss to increase the efficiency of perovskite solar cells (PSCs) has been aggressively studied. In this work, we introduce and compare rubidium iodide (RbI) and potassium iodide (KI) alkali metal halides ...