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Optically transparent polymers with a high refractive index can find a broad range of applications in optoelectronics. The majority of available polymers present lower refractive index values ranging from 1.50 to 1.60. Here, we demonstrate the development of organic polymers with a high refractive index (up to 1.90) for thin-film applications. The synthesized polymers show high transparency in the visible wavelength and are entirely nanoparticle free.
They are among the organic polymers with the highest refractive index ever reported. The developed polymers can be nanopatterned via nanoimprint lithography, a powerful method to fabricate nanostructures following a simple and scalable process.
Carlos A. Pina-Hernandez,Adam Legacy,Stefano Cabrini, andKeiko Munechika
"Ultra-high refractive index polymers in the visible wavelength for nanoimprint lithography", Proc. SPIE 11696, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV, 116960O (5 March 2021); https://doi.org/10.1117/12.2582912
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Carlos A. Pina-Hernandez, Adam Legacy, Stefano Cabrini, Keiko Munechika, "Ultra-high refractive index polymers in the visible wavelength for nanoimprint lithography," Proc. SPIE 11696, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV, 116960O (5 March 2021); https://doi.org/10.1117/12.2582912