(BiSb)2Te3 pyroelectric material

Product Name

^{Name: (BiSb)2Te3 pyroelectric material}

Product Overview

^{Thermoelectric materials are functional materials that can convert thermal and electrical energy by utilizing their internal charge carriers and phonons. The effective operation of thermoelectric materials is mainly based on three physical effects, namely the Seebeck Effect (discovered in 1794, referring to the phenomenon of thermal to electrical conversion between two different conductors), the Peltier Effect (discovered in 1834, the phenomenon of electrical to thermal conversion between two different conductors), and the Thomson Effect (discovered in 1851, the phenomenon of heat absorption and release in a single conductor).}

^{The conversion efficiency of thermoelectric materials is determined by the dimensionless parameter - thermoelectric figure of merit ZT, and its calculation formula is:}

^{ZT=σ S2T/k, where σ is the conductivity, S is the Seeback coefficient, which is the inherent electronic transport performance parameter of thermoelectric materials, T is the temperature, and k is the total thermal conductivity. A common method to improve the performance of thermoelectric materials is to introduce multi-scale second phases to regulate the microstructure of thermoelectric materials, thereby changing the band structure and crystal structure of the matrix to coordinate various parameters and optimize their thermoelectric transmission performance.}

^{Traditional inorganic thermoelectric materials are currently a type of thermoelectric material with a wide range of applications and a long research time. Mainly including Mg based thermoelectric materials (Mg2X (X=Si, Sn)), Bi2Te3 based thermoelectric materials, SiGe based thermoelectric materials, PbX (X=S, Se, Te) based thermoelectric materials, SnX (X=S, Se) based thermoelectric materials, GeTe based thermoelectric materials, and oxide based thermoelectric materials.}

^{Bi2Te3 based thermoelectric materials are the best performing thermoelectric materials at room temperature and are widely used in refrigeration devices near room temperature. The crystal structure of Bi2Te3 is approximately a hexahedral layered structure, arranged in the order of Te (I) - Bi Te (II) - Bi Te (I).}

^{Technical Parameter}

^{Thickness: 50-300 nm}

^{Appearance: Grey black powder}

^{Main ingredient: Bi0.4Sb1.6Te3}

^{Semiconductor type: P-type}

^{Product Features}

^{1. The addition of Sb element increased the carrier concentration and improved the conductivity.}

^{2. Excellent room temperature thermoelectric performance, with high thermoelectric merit values near room temperature.}

^{3. Good electrical conductivity and low thermal conductivity help improve the efficiency of thermoelectric conversion.}

^{Application Fields}

^{1. Equipment components: Used for manufacturing micro refrigeration devices that can achieve precise temperature control in local areas, such as in the cooling of electronic devices.}

^{2. Energy conversion: It can convert industrial waste heat or automobile exhaust waste heat into electrical energy.}

^{3. Detection instruments: In high-end electronic devices such as infrared detectors, micro refrigeration devices made of Bi2Te3 can ensure that the detector works normally at low temperatures, improving its performance and sensitivity.}

^{Related Information}

^{Please e-mail for the detailed characterization data.}

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