page_title: High-refractive-index polymer
section_title: Applications
hierarchical_section_title: High-refractive-index polymer / Applications
caption_attribution_description: English: CMOS image sensor
context_page_description: A high-refractive-index polymer is a polymer that has a refractive index greater than 1.50.
  Such materials are required for anti-reflective coating and photonic devices such as light emitting diodes and image sensors. The refractive index of a polymer is based on several factors which include polarizability, chain flexibility, molecular geometry and the polymer backbone orientation.
  As of 2004, the highest refractive index for a polymer was 1.76. Substituents with high molar fractions or high-n nanoparticles in a polymer matrix have been introduced to increase the refractive index in polymers.
caption: A CMOS image sensor
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