Direct optical lithography for displays patterns quantum dots at ultra-high resolution using only light; no photoresist needed

https://phys.org/news/2025-09-core-technology-ultra-high-resolution.html

"diazirine structured crosslinker reacts to single UV exposure, activating carboxylic acid functional group to bind to QD surface, forming ultra-fine patterns, achieving 2 μm (6,350 DPI) resolution patterning while also ensuring excellent precision/ stability... then applied PETMP thiol-based compound, passivating surface defects, further improving photoluminescence quantum yield, 10.3% maximum external efficiency, 99,369 cd/m² maximum luminance... displays, AR, VR, micro-QLEDs, transparent devices, image sensors"

Related: Quantum dot and polymer cross-linking enables 50% stretch capability for micro-LED displays
https://phys.org/news/2025-09-quantum-dot-polymer-linking-enables.html