Seebeck Coefficient / Electric Resistance Measurement System ZEM-5 series

A series corresponding to special specifications for the properties of various thermoelectric materials and thin films

A higher level evaluation for various kinds of materials has been required along with the development of thermoelectric materials. This system “Seebeck Coefficient / Electric Resistance Measuring System ZEM-5 series” is specialized in the features of various kinds of materials such as high temperature, high resistance and thin film, etc. and a performance evaluation system to correspond to various kinds of needs.

Applications

• Evaluate the thermoelectric properties of a wide variety of materials including semiconductors, ceramics, and metals

Features

• A series corresponding to special specifications for the characteristics of various thermoelectric materials and thin films
• A type C thermocouple is used for the temperature detection sensor, making this system optimal for evaluating Si-based                      thermoelectric materials (SiGe, MgSi, others) (model HT)
• V/I plot that self-diagnoses the ohmic contact is standard
• Measurement of high temperature up to 1200°C (model HT)
• Measurement of high resistance of maximum 10 MΩ (model HR)
• Measurement of materials formed as a film on substrates (model TF)
• Measurement of low temperature from -150°C to 200°C (model LT)

A patent and a standard

Thermoelectric power JIS R 1650-1 
Resistivity JIS R 1650-2

Specifications

Type ZEM-5HT ZEM-5HR ZEM-5LT ZEM-5TF
Features High temperature High resistance Low and middle temperature Thin film
Temperature Range 100℃~1200℃ 100℃~800℃ -150℃~200℃ 50℃~500℃
Measurement
Atomosphere
Low-pressure He gas
Sample Size 2 to 4 mm square or φ2 to 4 mm x 3 to 15 mm length Deposited substrate:
2 to 4 mm
width x 0.4 to 1.2 mm
thickness mm x 20 mm length
Thin film thickness: nm scale or thicker
* An insulation layer is required between the sample film
and the substrate
Thermocouple C R K R
Measurement
Properties
Seebeck coefficient: ±7%
Electric resistivity: ±7% (less than 5mm long sample is not eligible.)
Optional Cooling water circulator 
Customizations for special uses can also be available

Seebeck coefficient calculation method

Seebeck coefficient measurement shall be done by changing 3 temperature gradients and dividing dark electromotive force.

Setting and measurement screen

Temperature setting screen

V/I plot screen