Thermal Conductivity Measurements of TiO2 Thin Films by 3ω-method (CAT#: STEM-PPA-0038-WXH)

Introduction

Titanium dioxide (TiO2) thin films are one of the important and promising semiconductor materials for environmental and energy applications because of their unique optical and electronic properties.

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Principle Applications Procedure Materials Notes Related Products

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

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