High-Resolution Bubble Printing of Quantum Dots.

ABSTRACT: Semiconductor quantum dots (QDs) feature excellent properties, such as high quantum efficiency, tunable emission frequency, and good fluorescence stability. Incorporation of QDs into new devices relies upon high-resolution and high-throughput patterning techniques. Herein, we report a new printing technique known as bubble printing (BP), which exploits a light-generated microbubble at the interface of colloidal QD solution and a substrate to directly write QDs into arbitrary patterns. With the uniform plasmonic hot spot distribution for high bubble stability and the optimum light-scanning parameters, we have achieved full-color QD printing with submicron resolution (650 nm), high throughput (scanning rate of ∼10^-2 m/s), and high adhesion of the QDs to the substrates. The printin

SUBMITTER: Bangalore Rajeeva B 

PROVIDER: S-EPMC5866051 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature