High-refractive-index polymers with high transparency

Yunyan Wang; Runhui Huang; Sean Simmons; Megan Bennett; Gu Xu

doi:10.1117/12.3000542

12 March 2024 High-refractive-index polymers with high transparency

Yunyan Wang, Runhui Huang, Sean Simmons, Megan Bennett, Gu Xu

Proceedings Volume 12913, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) V; 129131E (2024) https://doi.org/10.1117/12.3000542
Event: SPIE AR | VR | MR, 2024, San Francisco, California, United States

Conference Poster

Abstract

μThe emergence of adaptive and compact optical and optoelectronic devices, including flexible electronics, wearable displays, and solar panels, has necessitated the use of flexible and fracture-resistant substrates. High refractive index (HRI) polymeric coatings are being explored as promising alternatives to traditional inorganic thin films. In this study, three pure organic platforms were developed that offer tunable refractive indices (1.6 to 1.8 at 550 nm) and high light transmission (>98% at 400 nm for a 2-μm film). These HRI polymers demonstrate excellent compatibility with common processing solvents such as PGMEA, PGME, and acetone, as well as high thermal resistance with a Td of 300-370°C. Furthermore, an extended high-temperature baking study revealed the thermal and optical stability of our HRI polymer coatings, with less than 5% film thickness loss and less than 1% changes in optical properties. Additionally, we have developed photo-imageable formulations based on these HRI polymers, which can yield well-defined small features (<5 Θm) through i-line exposure.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yunyan Wang, Runhui Huang, Sean Simmons, Megan Bennett, and Gu Xu "High-refractive-index polymers with high transparency", Proc. SPIE 12913, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) V, 129131E (12 March 2024); https://doi.org/10.1117/12.3000542

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