Inkjet Printing of Cadmium-Free Quantum Dots-Based Electroluminescent Devices.

ABSTRACT: InP quantum dots (QDs) have excellent optoelectronic properties and less toxicity than Cd-based QDs, making them excellent candidates for QD-based light-emitting diodes (QLEDs). Inkjet printing is a promising technology to replace other methods, such as spin coating, vacuum evaporation, and lithography, for assembling lower-cost and high-resolution QLEDs. However, inkjet printing faces the challenge of a coffee ring effect. To address this, we combined the solutal and thermal Marangoni effects by employing a binary solvent system (cyclohexylbenzene and decane) and heating the substrate during printing. The thermal Marangoni effect, which has been underexplored in previous studies of inkjet-printed QLEDs, is a focal point of this work. Uniform patterns were obtained with a volume ratio of 2

SUBMITTER: Fu M 

PROVIDER: S-EPMC12012685 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature