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Related Experiment Video

Updated: Apr 12, 2026

An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

Published on: June 18, 2020

Graphitic Patterns on CVD Diamond Plate as Microheating/Thermometer Devices.

Daniele Di Gioacchino¹, Augusto Marcelli^1,2, Alessandro Puri¹

¹†INFN- National Laboratory of Frascati, Via Enrico Fermi 40, 00044 Roma, Italy.

ACS Applied Materials & Interfaces

|May 7, 2015

Summary

Researchers developed a compact diamond-based temperature sensor and microheater. This device offers fast response, high accuracy, and stability for precise temperature control in various applications.

Keywords:

CVD diamond graphitic planar structure laser patterning microheater microthermometer

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Area of Science:

Materials Science
Nanotechnology
Solid State Physics

Background:

Developing compact, high-performance temperature sensors and microheaters is crucial for advanced experimental setups.
Synthetic polycrystalline diamond offers unique thermal and electrical properties for microelectronic applications.

Purpose of the Study:

To develop and characterize a novel laser-patterned resistive temperature sensor and microheater on synthetic diamond.
To evaluate the device's performance, including response time, stability, sensitivity, and accuracy.

Main Methods:

Laser patterning of a resistive structure on a synthetic polycrystalline diamond plate.
Utilizing imaging and spectroscopy to analyze the patterned structure's morphology, composition, and carbon phases.
Conducting transport experiments to determine electrical behavior and thermal power measurements.

Main Results:

The patterned structure consists of nondiamond carbon phases with semiconducting behavior.
The device functions as a microthermometer with fast response and excellent long-term stability.
High sensitivity and a simple calibration procedure ensure accurate temperature measurements.
The microheater exhibits linear temperature-input power behavior over a wide range.

Conclusions:

The developed diamond-based microdevice is a promising compact temperature sensor and microheater.
Its properties are suitable for applications requiring precise temperature control with minimal thermal anchoring and mechanical stress.
The device demonstrates potential for integration into compact experimental layouts demanding high accuracy and reliability.