Potential determination device of film thermoelectric material

Abstract

The invention relates to a potential determination device of a film thermoelectric material. The potential determination device comprises a lofting pipe, a heating mechanism, an injection pump, a thermal imager and a voltage tester; the thermal imager is arranged above the lofting pipe, one end of the lofting pipe is provided with the heating mechanism, and the pipeline is wound on the other end of the lofting pipe; the pipeline is connected with the injection pump through an ice groove; and an input end of the voltage tester is connected with copper electrodes at two ends of the lofting pipe. The potential determination device disclosed by the invention is simple and practical, strong in operability, has a certain accuracy degree, and is suitable for preliminarily evaluating the thermoelectric property of the two-dimensional and one-dimensional thermoelectric materials.

Description

technical field [0001] The invention relates to a potential measuring device, in particular to a potential measuring device of a thin film thermoelectric material. Background technique [0002] Thermoelectric materials are functional materials that directly convert thermal energy and electrical energy through the movement of carriers inside the material. Creating a temperature difference across a piece of thermoelectric material creates a potential difference across the material. Thermoelectric batteries made of thermoelectric materials have outstanding features such as no mechanical moving parts, no pollution, no noise, long life and high reliability. [0003] In previous studies, the performance of thermoelectric materials was usually characterized by Seebeck coefficient, dimensionless thermoelectric figure of merit ZT, electrical conductivity, thermal conductivity, and thermoelectromotive force VTE under a certain temperature difference. In recent years, with the in-dep...

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Problems solved by technology

However, traditional thermoelectric testing devices can only measure bulk materials of a certain size. Even though some instruments for testing thermoelectric thin film materials have been developed recently, there are still problems such as complicated testing process, low testing accuracy and high testing costs.

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