Product Name
Name:Single Layer MoS2 quantum dots powder
Product Overview
MoS2 is a typical transition metal disulfide with a two-dimensional layered structure similar to graphene. MoS2 has three crystal structures: 1T type, 2H type, and 3R type. Among them, 1T type and 3R type are metastable phases, and 2H type is stable phase. Macroscopic MoS2 materials mostly exist in 2H type and have a unique sandwich structure, belonging to the hexagonal crystal system.
The synthesis methods of MoS2 are mainly divided into two categories: "top-down" exfoliation method and "bottom-up" exfoliation method. The "top-down" exfoliation method includes micro mechanical exfoliation, liquid-phase exfoliation, and lithium-ion intercalation, mainly using physical means to exfoliate bulk MoS2 into single-layer or few layer layered structures. The "bottom-up" exfoliation method includes chemical vapor deposition, hydrothermal method, and high-temperature thermal decomposition method, mainly using chemical means to grow atoms and molecules into nanoscale thin films and granular MoS2 under certain environmental conditions.
The single-layer quantum dots of molybdenum disulfide provided by Xianfeng are prepared by lithium intercalation method, and large areas of molybdenum disulfide are removed by centrifugation in the later stage. Quantum dots are the main component, and some nanosheets may remain. Quantum dots prepared by intercalation method do not emit light, but due to their numerous defects and specific surface area, they are ideal materials for electrochemical applications.
Technical Parameter
Particle:< 10nm
Product Features
Quantum confinement effect: Due to its extremely small size, the motion of electrons and holes is restricted, resulting in energy state separation and unique optical and electrical properties.
Good electrical performance: high carrier mobility, suitable for manufacturing high-performance electronic devices.
Good biocompatibility: When applied in the biomedical field, it has relatively low toxicity to organisms, which is beneficial for biological labeling and imaging.
High chemical activity: Rich surface active sites, easy to carry out chemical modification and functionalization.
Application Fields
Optoelectronic devices: Molybdenum disulfide quantum dots can be used to prepare optoelectronic devices such as photovoltaic cells, photodetectors, and LEDs. Their excellent optical and electrical properties make these devices more efficient and have a wider range of applications.
Catalyst: Molybdenum disulfide quantum dots can be used as catalysts or catalyst carriers in reactions such as hydrogen production, carbon dioxide reduction, and pollutant degradation.
Sensor: Molybdenum disulfide quantum dots can be used as sensitive components for sensors to detect gases, ions, and molecules in the environment. Its high sensitivity and selectivity make it potentially valuable in fields such as environmental monitoring and biomedical detection.
Biomedical applications: Molybdenum disulfide quantum dots have good biocompatibility and can be used in fields such as biomedical imaging, drug delivery, and biosensors.
Related Information
MoS2 QDs solution is kept in cold storage at 4 C, requiring inert gas protection and used in a week. The longest time is 1 months.
MoS2 QDs powder is kept in the normal temperature drying and avoiding light seal. The longest time is 3 months.
Please e-mail for the detailed characterization data.
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