# Composition and Density Analysis in OLED Devices Using Micro-RBS

> This white paper summarizes how Rutherford Backscattering Spectroscopy (RBS) is used to analyze the composition and density of OLED devices.

Source: https://covalent.com/resource-library/composition-and-density-analysis-in-oled-devices-using-micro-rbs/
Updated: 2026-05-15T18:02:48+00:00

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# Composition and Density Analysis in OLED Devices Using Micro-RBS

 [![Composition and Density Analysis in OLED Devices Using Micro-RBS](https://spcdn.shortpixel.ai/spio/ret_img,q_cdnize,to_auto,s_webp:avif/covalent.com/wp-content/uploads/2023/10/Composition-and-Density-Analysis-in-OLED-Devices-Using-Micro-RBS.jpg)](https://covalent.com/wp-content/uploads/2025/09/trc-sman-en-202109-dc-16-p02313.pdf)

Dec 22, 2021

[Toray Research Center](https://covalent.com/news/covalent-announces-partnership-with-toray-research-center/) possesses the world's first introduced high-spatial-resolution RBS system. Accurate composition and density evaluation of a small area can be realized by using a high-energy micro-ion-beam. The composition and density analysis of the IGZO layer in the flexible OLED device and Ir quantification in the emission layer are shown in this white paper.

[Click here to download the Whitepaper](https://covalent.com/wp-content/uploads/2025/09/trc-sman-en-202109-dc-16-p02313.pdf)

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