Molybdenum Telluride

Molybdenum telluride target is an important coating material.

Basic information:

Chemical formula: MoTe₂, composed of the elements molybdenum (Mo) and tellurium (Te)

Molecular weight: 351.14

CAS number: 12058-20-7

Appearance: Usually dark gray solid with a metallic luster

Density: Approximately 7.7 g/cm³

Melting point: The specific melting point data is difficult to determine, and changes such as decomposition may occur at high temperatures

Crystal structure: belongs to the layered structure, the binding force between layers is relatively weak, this structure makes it has unique properties in some applications, such as can be prepared by mechanical stripping and other methods of few or single layer two-dimensional materials.

Preparation method:

Powder metallurgy: high purity molybdenum telluride powder is prepared first, and then the powder is made into the target material by pressing, sintering and other processes.

Chemical vapor deposition method: The use of molybdenum source and tellurium source gas in a certain temperature, pressure and atmosphere under the biochemical reaction, deposited on the substrate to form a molybdenum telluride film, and then the film is stripped off the substrate to make a target.

Application field:

Semiconductor field: As a semiconductor material, molybdenum telluride targets can be used to prepare semiconductor devices, such as field effect transistors, diodes, etc. Its unique electronic structure and energy band characteristics make the prepared devices have excellent electrical properties.

Optical field: can be used to prepare optical films, such as anti-reflection film, anti-reflection film, etc., can improve the performance and efficiency of optical devices.

Solar cell field: It can be used as electrode material or thin film material for solar cells, which helps to improve the photoelectric conversion efficiency and stability of solar cells.

Quality requirements:

Purity: High purity is an important quality index of molybdenum telluride target, and the purity is generally required to be above 99.9% to ensure that the prepared film has good performance and stability.

Density: The higher density can ensure the stability and uniformity of the target in the sputtering process, and reduce the sputtering process of particles and defects.

Size and shape: According to different application requirements, molybdenum telluride targets need to be prepared into different sizes and shapes, such as round, square, rectangular, etc., and the dimensional accuracy must meet certain requirements.