Yellow fluorescent graphene quantum dots as a phosphor for white tunable light-emitting diodes.

ABSTRACT: In recent decades, quantum dots have been considered to be highly promising photoluminescent materials for white light devices. During the application of quantum dots in the fabrication of white LEDs, the spectrum and color temperature of the devices are modulated; these devices often involve quantum dots with different emission wavelengths. In this study, yellow-green emitting graphene quantum dots (GQDs) were fabricated using a simple, low-cost and eco-friendly method. The obtained GQDs were cast in UV-curable siloxane. Then, a polymer film with superior optical transparency and excellent monodisperse properties of GQDs was formed. Via the simple adjustment of thickness and the GQD concentration of the color convert matrix, tunable color temperatures (3196-10 870 K) of the GQD-bas

SUBMITTER: Yin L 

PROVIDER: S-EPMC9061975 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature