PHOTORESIST-FREE OPTICAL PATTERNING METHOD FOR COLLOIDAL NANOCRYSTALS IN GREEN SOLVENT

Abstract: a photoresist-free optical patterning method for colloidal nanocrystals in a green solvent is provided. a photosensitive ligand structurally similar to the green solvent is introduced to successfully disperse nanocrystals in the green solvent and complete direct photolithography on the nanocrystals. photosensitive nanocrystals obtained through ligand exchange can be effectively dispersed in the green solvent to absorb spectra emitted by the green solvent, thereby preserving about % of photoluminescence quantum yield (plqy) while keeping the morphology and size unchanged. the present invention solves the problem that nanocrystals cannot be subject to direct photolithography in the green solvent, and is expected to be applied to the commercialization of nanocrystals in the field of electroluminescent and photoluminescent quantum dot displays.

Inventor(s): Yuanyuan WANG, Pengwei XIAO, Zhoufan ZHANG, Huanhuan LUO

CPC Classification: G03F7/029 (Inorganic compounds; Onium compounds; Organic compounds having hetero atoms other than oxygen, nitrogen or sulfur)

Search for rejections for patent application number 20250164879