Journal
NEW CARBON MATERIALS
Volume 36, Issue 3, Pages 527-542Publisher
ELSEVIER
DOI: 10.1016/S1872-5805(21)60042-2
Keywords
Carbon dot; Nanomaterial; Luminescent; White light emitting diode; Optical sensor
Categories
Funding
- Shandong University [JL-JS01029]
- China Tobacco Shandong Industrial Co., Ltd. [JL-JS01029]
- National Natural Science Foundation of China [21875129]
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Carbon dots (CDs) are considered a new star in the family of carbon nanomaterials due to their environmentally friendly, non-toxic, and low-cost advantages, making them ideal candidates to replace rare earth/semiconductor quantum dot-based luminescent materials. However, the challenge lies in retaining their luminescent properties in the solid state due to aggregation-induced quenching. The review provides an overview of CD synthesis methods, strategies for preparing CD-SSL materials, their applications in white light-emitting diodes and optical sensors, as well as discusses the current research shortcomings and future prospects.
Carbon dots (CDs) have been regarded as a new star in the family of carbon nanomaterials, and have been widely studied since they were accidentally discovered in 2004. CD-based solid-state luminescent (CD-SSL) materials have the advantages of being environmentally friendly, non-toxic and low cost, which makes them ideal candidates to replace rare earth/semiconductor quantum dot-based luminescent materials. However, because of their quenching caused by aggregation, it is a great challenge to retain their luminescent properties when they are transferred from solution to the solid state. This review gives a brief introduction to the synthesis methods for CDs, followed by a detailed description of the most widely used strategies for the preparation of CD-SSL materials and their typical applications in white light-emitting diodes and optical sensors. Finally, the shortcomings of current research on CD-SSL materials are discussed, and their future in the above-mentioned as well as other fields is briefly considered.
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