Germanium Telluride powder is a black or dark gray powder with the chemical formula GeTe₂. It has specific physicochemical properties and has important applications in electronics, phase change storage, thermoelectric materials, and infrared detection.
Properties
Chemical Formula: GeTe₂
Molecular weight: about 343.96 g/mol
Appearance: It is usually in the form of black or dark gray lumps or flakes, with a certain metallic luster, smooth surface, no obvious defects such as pores and cracks.
Density: Its density is relatively high, about 7.32 g/cm³, which makes it better able to withstand ion bombardment in the sputtering process, ensuring the stability of the sputtering process and the uniformity of the sputtered film.
Melting point: With a melting point of about 700°C, it remains solid under conventional sputtering conditions, providing a stable source of material for sputtering and helping to accurately control the growth rate and thickness of the film.
Stability: At room temperature and pressure, Germanium Telluride sputtering targets have good chemical stability. However, under specific environments such as high temperature, strong oxidation or strong acid and alkali, their chemical activity will be enhanced, and they are susceptible to chemical reactions, so care needs to be taken to avoid contact with these substances in the course of use and storage, in order to prevent the targets from being corroded and damaged.
Oxidizing and reducing properties: Both germanium and tellurium elements in Germanium Telluride have certain oxidizing and reducing properties, which makes it able to participate in a variety of redox reactions, providing the basis for the chemical modification and functionalization of the material, for example, by reacting with other elements or compounds, it can regulate the electrical, optical and other properties of the sputtered film.
Reaction with acid and alkali: Germanium Telluride can react with some strong acids and alkalis to generate corresponding germanium salts, tellurium salts and other compounds, so it is necessary to avoid contact with corrosive substances such as acid and alkali during handling and use to prevent affecting the performance and service life of the target material .
Application
Electronic devices: In semiconductor device manufacturing,Germanium Telluride sputtering targets can be used to prepare high-performance thin-film transistors, logic circuits, etc. Their unique electrical properties, such as suitable forbidden band width, high carrier mobility, etc., can satisfy the requirements of miniaturization, high-speed, and low-power consumption of modern electronic devices, and help to improve the performance and integration of electronic devices.
Phase-change storage: Germanium Telluride is one of the commonly used phase-change materials in phase-change memory, which is capable of undergoing rapid crystalline and amorphous transitions at different temperatures and electric fields, thus realizing data storage and reading. GeTe₂-based phase change memory technology has the advantages of fast read/write speed, high storage density, and non-volatility, which is one of the important development directions for the next generation of storage technology.
Thermoelectric material: GeTe₂ has certain thermoelectric properties, which can be used as thermoelectric material in the fields of temperature difference power generation and thermoelectric refrigeration. It can convert thermal energy into electrical energy or use electrical energy to realize the cooling effect, which has potential application value in energy recovery, waste heat utilization and small-scale refrigeration equipment, etc., and helps to improve the efficiency of energy utilization and realize the development of green energy.
Infrared detection: GeTe₂ can be used to manufacture infrared detectors due to its good absorption and response characteristics to infrared light. In the military, security, environmental monitoring and other fields, infrared detectors can realize non-contact detection and imaging of target objects, with good concealment, strong anti-interference ability, etc., which is of great significance for safeguarding national security and social stability.
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
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