Rigid crosslinker-assisted nondestructive direct photolithograph for patterned QLED displays.

ABSTRACT: Recently, colloidal quantum dots (QDs) with high luminescent efficiency and tunable colors have become ideal materials for next-generation display devices. Direct photolithography is a powerful tool for patterning QD devices, but it faces the serious issue of degradation in the photophysical properties of the patterned QDs. Here, we use relatively rigid cyclopentane as a bridging group to design the crosslinker CPTA, achieving high-resolution direct photolithography of QDs with nearly nondestructive under ambient conditions. The key to the crosslinker design is the introduction of a rigid bridging group that elevates the LUMO level, providing a stronger energy barrier to prevent QD electrons from being trapped or undergoing non-radiative recombination, thus preserving their PL and EL prope

SUBMITTER: Chen Z 

PROVIDER: S-EPMC12290042 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature