Product Name
Name：CsPbI2Br Perovskite quantum dot dispersion
Product Overview
Perovskite Quantum Dots (PQDs) are a kind of quantum dots based on perovskite materials, which are a new type of photoelectric nanomaterials. Perovskite quantum dots are composed of semiconductor crystals with perovskite structures, ranging in size from a few nanometers to dozens of nanometers. The perovskite structure is a cubic crystal structure with the universal chemical formula ABX3, in which A and B are two different cations and X is an anion. The dimensions of perovskite quantum dots are smaller than their excitonic Bohr radius and exhibit quantum confinement effects, i. e., their optical and electrical properties are affected by their size and shape. It has many excellent properties, such as high light absorption rate, high fluorescence quantum yield, narrow emission line, wide spectral coverage, emission wavelength tunable, etc. Compared with ordinary perovskite materials, perovskite quantum dots are more stable and crystal phase adjustable.
Technical Parameter
Appearance:Purple-red dispersion
Emission peak:~640nm
Concentration:10 mg/ml
Solvent:Water:n-hexane/methylbenzene
Product Features
1）Lighting wavelength adjustable: by changing the halogen composition of the X position in the perovskite quantum dots (such as chlorine, bromine, iodine), the continuous regulation of the light emission wavelength from blue violet light to red light can be realized, covering the visible spectral range of 395nm-700nm. This property makes perovskite quantum dots have great potential in the field of display technology and lighting.
2）High optical quantum efficiency: perovskite quantum dots can achieve high optical quantum efficiency. This means that they can more efficiently convert the absorbed light energy into the emitted light energy, improving the energy efficiency.
3）Easy to modify and functionalization: perovskite quantum dots have organic ligands on their surface, which allows them to be modified and functionalized with other molecules or nanoparticles through simple coordination exchange or covalent bonding. This property provides more possibilities and flexibility for the application of perovskite quantum dots in multiple fields. Through modification and functionalization, the stability, dispersion, biocompatibility of perovskite quantum dots can be improved, and new functions can be endowed, such as catalysis, sensing, and drug delivery.
Application Fields
1）Display technology: can be used to manufacture high resolution displays, such as OLED, QLED, etc., can achieve wider color gamut, higher color purity and color rendering index than traditional phosphor;
2）Solar cells: The application of perovskite quantum dots in solar cells is attracting increasing attention. Its photoelectric conversion efficiency is constantly improving. For example, according to the simulation experiments obtained by Iranian scientists, the photoelectric conversion efficiency of perovskite quantum dot solar cells can approach 30%. In addition, perovskite quantum dots also have the advantages of long carrier life, high carrier mobility and high light absorption coefficient, which is conducive to achieve efficient photoelectric conversion.
3）Photodetection: Perovskite quantum dots have also shown great potential in the field of photodetectors due to their excellent photoelectric performance. For example, the photoelectric detection device based on perovskite quantum dots has high sensitivity and high response rate, and can be used in environmental optical information monitoring, day-blind ultraviolet monitoring and other fields.
4）Biomedical: The application of perovskite quantum dots in the field of biomedicine is also expanding. Its high quality photoelectric properties make it show some advantages in biological imaging, such as simple synthesis process, strong biological adaptability, multi-color tunable band gap, narrow and symmetric photoluminescence emission spectrum, high quantum yield, etc. These advantages can meet the imaging requirements of multi-color, multi-resolution, high signal-to-noise ratio, and high sensitivity.
Related Information
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