4.7 Article

Facile Preparation of Stable Solid-State Carbon Quantum Dots with Multi-Peak Emission

Journal

NANOMATERIALS
Volume 10, Issue 2, Pages -

Publisher

MDPI
DOI: 10.3390/nano10020303

Keywords

solid-state luminescence; multi-peak emission; yellow carbon quantum dots; white light-emitting diode

Funding

  1. National Natural Science Foundation of China [U1710117, 51972221, 61504090]
  2. Natural Science Foundation of Shanxi Province [201901D111127]

Ask authors/readers for more resources

Aggregation-caused quenching (ACQ) effect, known as the main cause to restrain solid-state luminescence of carbon quantum dots (CQDs), hinders further application of CQDs in white light-emitting diodes (WLED). Here, a complex of CQDs and phthalimide crystals (CQDs/PC) was prepared through a one-step solvothermal method. CQDs/PC prevented CQDs from touching directly by embedding the CQDs in phthalimide crystal matrix in situ, which effectively reduced the ACQ effect. Furthermore, CQDs/PC exhibited multi-peak fluorescence spectra that span the green, yellow and orange spectral regions. Finally, a WLED fabricated based on CQDs/PC achieved a color-rendering index of 82 and a correlated color temperature of 5430 K. This work provides a quick and effective strategy to apply CQDs to WLED.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available