All articles starting with P
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Perovskite nanocrystal white light-emitting diode
A perovskite nanocrystal white light-emitting diode is a white LED using metal halide perovskite nanocrystals, either down-converting light on blue chips or emitting white directly.
Perovskite nanoplatelet
A perovskite nanoplatelet is an ultrathin, plate-shaped crystal of a metal-halide perovskite semiconductor, only a few monolayers thick, whose strong quantum confinement yields narrow emission tuned stepwise by thickness and used in LEDs, lasers, and photodetectors.
Perovskite nanowire laser
A perovskite nanowire laser is a miniature laser in which a single-crystal lead halide perovskite wire serves as gain medium and its own Fabry–Pérot cavity, lasing at room temperature.
Perovskite optoelectronic synapse
A perovskite optoelectronic synapse is an artificial synaptic device built from metal halide perovskite that mimics biological synaptic plasticity, combining light sensing, memory, and processing for neuromorphic vision systems.
Perovskite oxide electrocatalysts
Perovskite oxide electrocatalysts are low-cost, tunable ABO₃ crystalline oxides that speed up the oxygen evolution reaction in water splitting, metal-air batteries, and fuel cells, offering alternatives to noble-metal catalysts.
Perovskite oxide electrodes
Perovskite oxide electrodes are ABO₃-type oxide electrodes used as oxygen, air, and fuel electrodes in fuel cells, electrolyzers, and metal-air batteries, valued for low cost and tunable composition.
Perovskite oxygen evolution catalysts
Perovskite oxygen evolution catalysts are tunable ABO₃ oxide compounds that accelerate the oxygen evolution reaction, the efficiency bottleneck of water electrolysis, offering low-cost alternatives to iridium catalysts.
Perovskite passivation
Perovskite passivation is the set of chemical treatments that neutralize defects in metal halide perovskite films, boosting perovskite solar cell efficiency toward 27% and slowing degradation.
Perovskite photocatalysis
Perovskite photocatalysis is the use of perovskite-structured materials as light-absorbing catalysts driving reactions such as hydrogen evolution, carbon dioxide reduction, and pollutant degradation, constrained by instability and lead toxicity.
Perovskite photodetector
A perovskite photodetector is a light-sensing device using a metal-halide perovskite semiconductor as the photoactive layer, first fabricated in 2014 and matching commercial silicon detectors.
Perovskite photoelectrodes
Perovskite photoelectrodes are semiconductor electrodes, based on ABX3 perovskite materials, that absorb sunlight to drive reactions such as water splitting, CO2 reduction, and nitrogen fixation.
Perovskite quantum dot light-emitting diode
A perovskite quantum dot light-emitting diode, also called PeQLED, is an LED whose emissive layer is metal halide perovskite nanocrystals, developed for high-color-purity displays and lighting.
Perovskite quantum dot solar cells
Perovskite quantum dot solar cells (PQDSCs) are photovoltaic devices whose light-absorbing layer is a film of perovskite nanocrystals, typically FAPbI3, reaching a certified efficiency of 18.23%.
Perovskite quantum dots
Perovskite quantum dots (PQDs) are nanometer-scale crystals of metal halide perovskite semiconductors, typically 2 to 10 nm across, valued for size-tunable, narrow-band light emission in displays, LEDs, and solar cells.
Perovskite quantum-dot LEDs
Perovskite quantum-dot LEDs, or PeQLEDs, are light-emitting diodes that use cesium lead halide perovskite nanocrystals as color-pure, low-cost emitters; their short operating lifetimes hold back commercialization.
Perovskite radiation detector
A perovskite radiation detector uses a metal halide perovskite semiconductor or scintillator to detect ionizing radiation, chiefly X-rays and gamma rays, by converting absorbed photons into charge or light.
Perovskite redox cycles for CO2 splitting
Perovskite redox cycles for CO2 splitting are two-step thermochemical processes that reduce a perovskite oxide at high temperature, then re-oxidize it with CO2 to yield carbon monoxide.
Perovskite scintillator
A perovskite scintillator is a radiation-detection material, typically a lead halide perovskite such as CsPbBr3, that converts X-rays and gamma rays into flashes of visible light for photodetectors to count.
Perovskite semiconductor detector
A perovskite semiconductor detector is a radiation or light sensor made from a metal halide perovskite such as CsPbBr3, used to detect X-rays, gamma rays, and visible light.
Perovskite solar cell
A perovskite solar cell is a photovoltaic device with a lead or tin metal-halide light absorber, whose efficiency has climbed from 3.8% in 2009 to over 26%.
Perovskite solar cell recycling
Perovskite solar cell recycling is the recovery of functional materials, including the lead-halide absorber, from end-of-life perovskite solar cells, since lead toxicity makes it essential for deployment.
Perovskite solar module
A perovskite solar module is a photovoltaic panel whose light-absorbing layer is a metal-halide perovskite thin film, a candidate for low-cost, high-efficiency solar power both alone and in perovskite-silicon tandems.
Perovskite stability under moisture and oxygen
Perovskite stability under moisture and oxygen is how well perovskite solar cells resist water vapor and oxygen, whose reactions decompose the material into lead iodide.
Perovskite tandem solar cell
A perovskite tandem solar cell stacks a wide-bandgap perovskite absorber over silicon or another material, so the two layers capture different parts of the sunlight spectrum and beat either alone.
Perovskite X-ray detector
Halide perovskite X-ray detectors are radiation sensors made of perovskite semiconductors with the crystal formula ABM₃, studied as cheaper, highly sensitive alternatives to silicon and amorphous selenium detectors.
Perovskite-silicon tandem solar cell
A perovskite-silicon tandem solar cell is a photovoltaic device that stacks a perovskite cell on silicon, with certified laboratory efficiency above 35% and first commercial panels shipped in 2024.
Perovskite/CIGS tandem solar cell
A perovskite/CIGS tandem solar cell is a photovoltaic device stacking a wide-bandgap perovskite absorber on a copper indium gallium selenide absorber, lightweight and flexible, with lab efficiencies above 30%.
Perovskite/organic tandem solar cell
A perovskite/organic tandem solar cell is a photovoltaic device stacking a wide-bandgap perovskite sub-cell over a narrow-bandgap organic sub-cell, with lab efficiencies rising from below 17% to over 27%.
Perovskite/quantum-dot tandem solar cells
A perovskite/quantum-dot tandem solar cell is a photovoltaic device that stacks a perovskite top cell over a lead sulfide quantum-dot bottom cell, harvesting both visible and infrared light.
Peroxidase
Peroxidase, an enzyme oxidizing substrates with hydrogen peroxide; found in plants, animals, and microbes; GRN 402 peroxidase from Aspergillus niger is FDA GRAS for bleaching cheese whey.