What Are the Different Types of Thermoelectric Materials?

Thermoelectric material is a functional material that can convert thermal energy and electric energy. The Seebeck effect discovered in 1823 and the Peltier effect discovered in 1834 provide theoretical basis for the application of thermoelectric energy converters and thermoelectric refrigeration.

Thermoelectric material

Thermoelectric materials are a kind of

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The choice of electric heating materials can be divided into three categories according to their operating temperature:

(1)

There are generally two ways to increase the ZT value of thermoelectric materials.

The Seebeck effect and the Peltier effect of thermoelectric materials have been discovered for more than 100 years, and countless scientists have conducted in-depth and fruitful research and exploration on it, and achieved brilliant results. With the continuous deepening of research, it is believed that the performance of thermoelectric materials will further improve, and it will definitely become China.

English: thermoelectric material

Will be different materials

The United States GMZ Energy announced on April 22 that it has introduced a breakthrough new material that will help create a new generation of cleaner, more energy-efficient products. This new type of thermoelectric material uses nanotechnology, is clean and environmentally friendly, and can effectively convert waste thermal energy into electrical energy, thereby paving the way for the development of green consumer products and industrial products, and promoting sustainable development in the future.

This GMZ material has many functions and is widely used. It can optimize the cooling function of refrigerators and air conditioners, and can use the heat source of automobile exhaust emission system to generate power. Because GMZ materials have been successfully developed and are cost-effective and easy to adopt, they are commercially viable. It can be used in many products today, can reduce energy consumption and

Generally, the mechanical properties of thermoelectric materials are poor. Taking Bi2Te3 as an example, the structure of the material is -Te-Bi-Te-Te-Bi-Te-layered structure, and between the Te-Te is van der Waals bonding. It is easy to fracture, so the Te-Te layer is liable to slip when the BiTe material receives pressure, resulting in fracture and deformation. This significantly reduces the useful life and range of the material.