Journal article
Red carbon dots: Optical property regulations and applications
Materials today (Kidlington, England), Vol.30, pp.52-79
11/01/2019
Abstract
Recent years have witnessed a rapid development of the fluorescent carbon dots (CDs), due to their distinctive advantages of straightforward synthesis, excellent biocompatibility, low cost, and tunable optical properties. However, the widespread applications of CDs in biomedical theranostics, light harvesting, and photocatalysis are limited by the lack of emission and/or excitation in the red/near-infrared (NIR) region. Extensive explorations have been conducted to synthesize CDs with intensive red/NIR emission/excitation (red CDs) by rational design and ingenious synthesis to broaden their applications. This review emphasizes the most recent efforts in the development of CDs with intensive emission at a long wavelength, with a focus on the regulation methods for the optical properties of CDs, including particle size, surface state, and heteroatom doping. Key factors in processing red CDs, such as reaction solvent and precursors, are demonstrated. More importantly, employing polyaromatic and dye molecules as carbon sources is highlighted, which could further expand emission/excitation to the NIR region. The boosting applications of red CDs in white light-emitting diodes (WLEDs), biosensing, bioimaging, theranostics, and photocatalysis are demonstrated. Finally, the challenges and perspectives of red CDs are also discussed.
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Details
- Title
- Red carbon dots: Optical property regulations and applications
- Creators
- Zhijun Zhu - Qingdao UniversityYanling Zhai - Qingdao UniversityZhenhua Li - Qingdao UniversityPeiyuan Zhu - Qingdao UniversitySui Mao - Qingdao UniversityChengzhou Zhu - Central China Normal UniversityDan Du - Washington State UniversityLaurence A. Belfiore - Qingdao UniversityJianguo Tang - Qingdao UniversityYuehe Lin - Washington State University
- Publication Details
- Materials today (Kidlington, England), Vol.30, pp.52-79
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Elsevier
- Number of pages
- 28
- Grant note
- first class disciplines of Shandong Province 2017YFE0108300; 2016YFE0110800 / State Key Project of International Cooperation Research WQ20123700111 / National One-Thousand Foreign Expert Program Program for Introducing Talents of Discipline to Universities ("111" plan) 21804074; 51473082 / Natural Scientific Foundation of China; National Natural Science Foundation of China (NSFC) ZR2018BB051 / Natural Scientific Foundation of Shandong Province; Natural Science Foundation of Shandong Province
- Identifiers
- 99901227845001842
- Language
- English
- Resource Type
- Journal article