Novel high refractive index polymers show promise in sustainable optoelectronics

https://phys.org/news/2024-04-high-refractive-index-polymers-sustainable.html

">92% transparent (amorphous) poly(thiourea)s controlling light: eco-friendly high light-extraction, easily/ low-cost processing/ recycling... each repeating polymer (monomer) unit a simple aromatic ring linked to a thiourea group... sulfur atom polymer strands attract hydrogen atoms linked to nitrogen in another thiourea group due to local electric charge differences, causing dense packing/ networks, high 1.81 refractive index... wearable lighting, thinner/ lighter/ degradable polymer eyeglasses, OLEDs, photodetectors"