Product Name
Name：CsPbBr3 Perovskite quantum dot dispersion
Product Overview
CsPbBr¡ãChas A typical Abx-¡ãCtype perovskite crystal structure, where the A position is cesium ion (Cs + +), the B position is lead ion (Pb² + +) and the X position is bromine ion (Brâï¿?. This crystal structure has a high degree of symmetry and stability. At the nanometer scale, quantum dots show obvious quantum limiting effect. With the decrease of quantum dot size, the movement of electrons and holes is restricted, which leads to the change of band structure and the separation of energy levels. For example, when the quantum dot size decreases from 10 nanometers to 5 nanometers, its band gap increases and the luminous color shifts from green to blue. Quantum dots typically range in size from a few nanometers to tens of nanometers. Quantum dots of different sizes and morphologies can be obtained by controlling the preparation conditions. The common morphology is spherical, cubic shape and so on. For example, in the preparation process of hot injection method, the growth rate of quantum dots can be controlled by adjusting the reaction temperature and time, thus affecting their size and morphology.
Technical Parameter
Size: 5-20 nm
C:10mg/ml,n-hexane/methylbenzene
Product Features
Luminous properties: CsPbBr3 perovskite quantum dots have regulated luminous properties at the nanoscale, and their luminous color can be adjusted by controlling the size and growth conditions of the particles, from blue to green, and even to red.
Quantum effects: Due to size effects, quantum dots have excellent optical and electrical properties that can display quantum confinement effects, giving them unique band structures and optical properties.
Electrical properties: high carrier mobility, theoretical electron mobility up to 10âï¿?cm²/Vs, hole mobility is also relatively high. This facilitates the transfer and separation of charge in the material, which is crucial for improving the performance of optoelectronic devices.
Application Fields
Optoelectronics: CsPbBr3 perovskite quantum dots have potential applications in optoelectronic devices such as solar cells and photodiodes, where they can be used for light absorption, carrier transport and luminescence.
Biomedical: Used as fluorescent markers for bioimaging and cell tracking because of their bright, stable fluorescent signal.
Fluorescence sensors: Using their sensitive optical properties, CsPbBr3 perovskite quantum dots can be used as fluorescence sensors to detect specific molecules, ions or substances in the environment.
Display technology: It also has application potential in LED display and other fields, which can improve the color purity and luminous efficiency of the display device.
Related Information
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