High-quality products
Reliable performance
- Home
- Technical Services
- Physical Property Analysis
- Thermal Conductivity Measurement Technology
- 3ω-Method
Thermal Conductivity Measurements of Carbon Nanowalls by 3ω-method (CAT#: STEM-PPA-0049-WXH)
Introduction
Carbon nanowalls (CNWs) are one of the allotropic modifications of carbon and are three-dimensional networks of vertically oriented graphene sheets. CNWs can be synthesized on various metallic, semiconductor and insulator substrates using various techniques.
Carbon nanowalls have tunable band gap, high conductivity, high mechanical robustness, high optical absorbance and other remarkable properties.
Principle
The process involves a metal heater applied to the sample that is heated periodically. The temperature oscillations thus produced are then measured. The thermal conductivity and thermal diffusivity of the sample can be determined from their frequency dependence.
Applications
Determining the thermal conductivities of bulk material (i.e. solid or liquid) and thin layers
Procedure
1. Sample preparation and mounting
2. Experimental condition setting
3. Experiment start: Turn on the 3ω signal generator and lock-in amplifier, and control the temperature controller to make the sample temperature reach the set value. When the sample reaches a stable state, data acquisition and processing begin.
4. Data processing
2. Experimental condition setting
3. Experiment start: Turn on the 3ω signal generator and lock-in amplifier, and control the temperature controller to make the sample temperature reach the set value. When the sample reaches a stable state, data acquisition and processing begin.
4. Data processing
Other recommended products
-
Thermal Conductivity Measurements of ytterbium doped CaF2 transparent ceramics by 3ω-method (CAT#: STEM-PPA-0048-WXH)
-
Thermal Conductivity Measurements of Thermal conductivity of silk fibroin fibers by 3ω-method (CAT#: STEM-PPA-0045-WXH)
-
Thermal Conductivity Measurements of Fiber-based thermoelectric materials by 3ω-method (CAT#: STEM-PPA-0040-WXH)
-
Thermal Conductivity Measurements of diamond thin films by 3ω-method (CAT#: STEM-PPA-0043-WXH)
-
Thermal Conductivity Measurements of magnetic nanofluids by 3ω-method (CAT#: STEM-PPA-0039-WXH)
-
Thermal Conductivity Measurements of AlN thin films by 3ω-method (CAT#: STEM-PPA-0041-WXH)
-
Thermal Conductivity Measurements of deuterium by 3ω-method (CAT#: STEM-PPA-0050-WXH)
-
Thermal Conductivity Measurements of Carbon-Nanotube Suspensions by 3ω-method (CAT#: STEM-PPA-0044-WXH)
Wide range of applications
For various laboratory needs
Expert support
Professional service team
Fast delivery
Global shipping