Tunable fluorescent carbon dots: synthesis progress, fluorescence origin, selective and sensitive volatile organic compounds detection.

0533800 - ÚCHP 2022 RIV US eng J - Journal Article
Dolai, Susmita - Bhunia, S.K. - Rajendran, S. - UshaVipinachandran, V. - Ray, S.Ch. - Klusoň, Petr
Tunable fluorescent carbon dots: synthesis progress, fluorescence origin, selective and sensitive volatile organic compounds detection.
Critical Reviews in Solid State and Materials Sciences. Roč. 46, č. 4 (2021), s. 349-370. ISSN 1040-8436. E-ISSN 1547-6561
Grant - others:SERB(IN) SRG/2020/000645; DST INSPIRE(IN) INSPIRE/04/2018/002484
Institutional support: RVO:67985858
Keywords : tunable fluorescent carbon dots * top-down and bottom-up synthetic approaches * fluorescence quantum yield
OECD category: Chemical process engineering
Impact factor: 11.178, year: 2021
Method of publishing: Open access with time embargo

Carbon dots (C-dots) are emergent nanomaterials of carbon-based materials family and have gained significant research interest because of their environmental friendliness, brightness, tunable fluorescence, chemical inertness, low cost, simple synthetic route and availability for wide variety of starting materials. These are considered as potential competitor to conventional semiconductor quantum dots in terms of lower toxicity. It is found that their involvement in adverse fields of chemical and bio-sensing, bio-imaging, drug delivery, photocatalysis, electrocatalysis and light-emitting devices makes as an ideal and potential candidate. Interestingly they are treated as important and versatile platform for engineering multifunctional nanosensors. This review focuses on the remarkable research progress of high quality tunable fluorescent C-dots synthesis via familiar top-down and bottom-up approaches. Their fluorescence origin has been nicely demonstrated by quantum confinement effect, surface state and molecular fluorescence properties. Finally, selective and sensitive atmospheric prevailed volatile organic compounds recognition has been explained with C-dots in both solution and solid phase along with discussion on challenging and future research direction.
Permanent Link: http://hdl.handle.net/11104/0312564