Flexible Quantum Dot Light-Emitting Devices For Targeted Photomedical Applications

Keywords

flexible quantum dot light-emitting devices; photomedicine

Abstract

Quantum dot light-emitting devices (QLEDs), originally developed for displays, were recently demonstrated to be promising light sources for various photomedical applications, including photodynamic therapy cancer cell treatment and photobimodulation cell metabolism enhancement. With exceptional emission wavelength tunability and potential flexibility, QLEDs could enable wearable, targeted photomedicine with maximized absorption of different medical photosensitizers. In this paper, we report, for the first time, the in vitro study to demonstrate that QLEDs-based photodynamic therapy can effectively kill Methicillin-resistant Staphylococcus aureus, an antibiotic-resistant bacterium. We then present successful synthesis of highly efficient quantum dots with narrow spectra and specific peak wavelengths to match the absorption peaks of different photosensitizers for targeted photomedicine. Flexible QLEDs with a peak external quantum efficiency of 8.2% and a luminance of over 20,000 cd/m2 at a low driving voltage of 6 V were achieved. The tunable, flexible QLEDs could be employed for oral cancer treatment or diabetic wound repairs in the near future. These results represent one fresh stride toward realizing QLEDs' long-term goal to enable the wide clinical adoption of photomedicine.

Publication Date

5-1-2018

Publication Title

Journal of the Society for Information Display

Volume

26

Issue

5

Number of Pages

296-303

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/jsid.650

Socpus ID

85048947295 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85048947295

This document is currently not available here.

Share

COinS