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In Operando, Photovoltaic, and Microscopic Evaluation of Recombination Centers in Halide Perovskite-Based Solar Cells
American Chemical Society (2022-08-03)The origin of the low densities of electrically active defects in Pb halide perovskite (HaP), a crucial factor for their use in photovoltaics, light emission, and radiation detection, remains a matter of discussion, in ... -
In situ ethanolamine ZnO nanoparticle passivation for perovskite interface stability and highly efficient solar cells
MDPI (2022-02-28)Zinc oxide (ZnO) has interesting optoelectronic properties, but suffers from chemical instability when in contact with perovskite interfaces; hence, the perovskite deposited on the top degrades promptly. Surface passivation ... -
In the Limelight: Perspective Collections on Perovskites
American Chemical Society (2017-08)In our inaugural “ In the Limelight ” Viewpoint, we revisited five high-impact papers that were published in The Journal of Physical Chemistry Letters ( JPC Letters ) in 2014, and we noted that four of the five were written ... -
Increasing the Performance and Stability of Red-Light-Emitting Diodes Using Guanidinium Mixed-Cation Perovskite Nanocrystals
American Chemical Society (2023-05-09)Halide perovskite nanocrystals (PNCs) exhibit growing attention in optoelectronics due to their fascinating color purity and improved intrinsic properties. However, structural defects emerging in PNCs progressively hinder ... -
Inductive and capacitive hysteresis of current-voltage curves: unified structural dynamics in solar energy devices, memristors, ionic transistors, and bioelectronics
American Physical Society (2024-01-08)Hysteresis observed in the current-voltage curves of both electronic and ionic devices is a phenomenon where the curve's shape is altered on the basis of the measurement speed. This effect is driven by internal processes ... -
Inductive Loop in the Impedance Response of Perovskite Solar Cells Explained by Surface Polarization Model
American Chemical Society (2017-03)The analysis of perovskite solar cells by impedance spectroscopy has provided a rich variety of behaviors that demand adequate interpretation. Two main features have been reported: First, different impedance spectral arcs ... -
Influence of Charge Transport Layers on Open-Circuit Voltage and Hysteresis in Perovskite Solar Cells
Elsevier (2018-04)Perovskite materials have experienced an impressive improvement in photovoltaic performance due to their unique combination of optoelectronic properties. Their remarkable progression, facilitated by the use of different ... -
Inhibition of light emission from the metastable tetragonal phase at low temperatures in island-like films of lead iodide perovskites
Royal Society of Chemistry (2019)Photonic applications based on halide perovskites, namely CH3NH3PbI3 (MAPbI3), have recently attracted remarkable attention due to the high efficiencies reported for photovoltaic and light emitting devices. Despite these ... -
Inhomogeneous Broadening of Photoluminescence Spectra and Kinetics of Nanometer-Thick (Phenethylammonium)2PbI4 Perovskite Thin Films: Implications for Optoelectronics
American Chemical Society (2021-06-16)An outstanding potentiality of layered two-dimensional (2D) organic–inorganic hybrid perovskites (2DHPs) is in the development of solar cells, photodetectors, and light-emitting diodes. In 2DHPs, an exciton is localized ... -
Inkjet-Printed Red-Emitting Flexible LEDs Based on Sustainable Inks of Layered Tin Iodide Perovskite
Wiley (2024)Inkjet printing has emerged as a promising technique for the fabrication of halide perovskite (HP) thin films, as it enables precise and controlled deposition of the perovskite ink on a variety of substrates. One main ... -
Insight into Photon Recycling in Perovskite Semiconductors from the Concept of Photon Diffusion
American Physical Society (2018)Photon recycling has been proven to be an important process in metal halide perovskite thin films. We propose a model of photon recycling based on the photon diffusion concept that can interpret experimental observations ... -
Insights into synaptic functionality and resistive switching in lead iodide flexible memristor devices
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. ... -
Insights into the past and future of Janus-di-N-heterocyclic carbenes
(2021-07-19)Janus di-N-heterocyclic carbene (NHC) ligands are a subclass of poly-NHCs that feature coordination to two transition metals in a facially opposed manner. The combination of the structural features of Janus type ligands, ... -
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 ... -
Intensity-Modulated Photocurrent Spectroscopy for Solar Energy Conversion Devices: What Does a Negative Value Mean?
American Chemical Society (2020-01-10)Small perturbation techniques constitute a wide family of tools for the characterization of solar energy conversion devices such as photovoltaic cells and photoelectrochemical (PEC) cells for solar fuel production. Two ... -
Interaction between Colloidal Quantum Dots and Halide Perovskites: Looking for Constructive Synergies
American Chemical Society (2019-02-19)Colloidal quantum dots (QDs) have received extensive attention during the last few decades because of their amazing properties emerging from quantum confinement. In parallel, halide perovskites have attracted attention ... -
Interface Engineering in Perovskite Solar Cells by Low Concentration of Phenylethyl Ammonium Iodide Solution in the Antisolvent Step
Wiley (2021-12-03)In spite of the outstanding properties of metal halide perovskites, its polycrystallinenature induces a wide range of structural defects that results in charge losses thataffect thefinal device performance and stability. ... -
Interfaces in Perovskite Solar Cells
Wiley (2017-11-22)Rapid improvement in photoconversion efficiency (PCE) of solution processable organometallic hybrid halide based perovskite solar cells (PSCs) have taken the photovoltaic (PV) community with a surprise and has extended ... -
Interfacial band-edge energetics for solar fuels production
Royal Society of Chemistry (2015)Photoelectrochemical (PEC) water splitting has received growing attention as a potential pathway to replace fossil fuels and produce a clean, renewable, and sustainable source of fuel. To achieve overall water splitting ... -
Interfacial Engineering at Quantum Dot-Sensitized TiO2 Photoelectrodes for Ultrahigh Photocurrent Generation
American Chemical Society (2021-02-01)Metal oxide semiconductor/chalcogenide quantum dot (QD) heterostructured photoanodes show photocurrent densities >30 mA/cm2 with ZnO, approaching the theoretical limits in photovoltaic (PV) cells. However, comparative ...