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PI Physik Instrumente - Revolution In Photonics Align LW LB 3/24

Coupling Perovskite to Nanophotonic Cavities for More Efficient Optoelectronics

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COLLEGE PARK, Md. and ZÜRICH, Nov. 29, 2017 — To boost the efficiency of perovskite as a light source for optoelectronics, researchers coupled lead halide perovskite nanocrystals to a nanophotonic cavity. The research team drop cast perovskite nanocrystals in a toluene solution onto a silicon nitride (SiN) cavity. They then excited the device with a pulsed laser, which led to photon emission from the nanocrystals. Room-temperature time-resolved lifetime measurements demonstrated an average spontaneous emission rate enhancement of 2.9 for perovskite nanocrystals within the cavity, as compared to those located on the unpatterned...Read full article

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    Published: November 2017
    Glossary
    optoelectronics
    Optoelectronics is a branch of electronics that focuses on the study and application of devices and systems that use light and its interactions with different materials. The term "optoelectronics" is a combination of "optics" and "electronics," reflecting the interdisciplinary nature of this field. Optoelectronic devices convert electrical signals into optical signals or vice versa, making them crucial in various technologies. Some key components and applications of optoelectronics include: ...
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    photonic crystals
    Photonic crystals are artificial structures or materials designed to manipulate and control the flow of light in a manner analogous to how semiconductors control the flow of electrons. Photonic crystals are often engineered to have periodic variations in their refractive index, leading to bandgaps that prevent certain wavelengths of light from propagating through the material. These bandgaps are similar in principle to electronic bandgaps in semiconductors. Here are some key points about...
    photoluminescence
    The state of optically excited luminescence. Luminescence refers to the light emitted by excited atoms or ions as they decay to lower energy levels.
    nanophotonics
    Nanophotonics is a branch of science and technology that explores the behavior of light on the nanometer scale, typically at dimensions smaller than the wavelength of light. It involves the study and manipulation of light using nanoscale structures and materials, often at dimensions comparable to or smaller than the wavelength of the light being manipulated. Aspects and applications of nanophotonics include: Nanoscale optical components: Nanophotonics involves the design and fabrication of...
    Research & TechnologyeducationAmericasEuropeLasersoptoelectronicsphotovoltaicspulsed lasersnanoMaterialsnanocrystalsphotonic crystalsphotoluminescencenanophotonics

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