GB/T 44538-2024 in English

The Chinese National Standard GB/T 44538-2024, "Optical Performance Determination of Amorphous Carbon-Based Thin Films by Ellipsometry", was published on September 29, 2024 and will come into effect on April 1, 2025. This standard provides detailed guidelines for the measurement and evaluation of optical properties in non-crystalline carbon-based thin films using ellipsometric techniques.

The document outlines methods for accurately measuring parameters such as thickness, refractive index, extinction coefficient, and other key optical constants. It also specifies requirements regarding sample preparation, instrument calibration, data acquisition procedures, analysis methodologies, and reporting criteria to ensure consistency and reliability in the assessment of amorphous carbon-based thin films.

By adhering to this standard, researchers and manufacturers involved in advanced materials science can achieve a higher level of precision and interoperability when characterizing these types of films. The adoption of GB/T 44538-2024 is expected to contribute significantly to the advancement of carbon-based thin film technologies across various industries including electronics, optics, and renewable energy.