Journal ArticleDOI
Carbon Dot-NaCl Crystals for White-Light Generation and Fabry-Perot Lasing.
TLDR
In this paper, a one-pot synthesis pathway has been developed for carbon dots (CDs)-NaCl crystals formation at room temperature, and a new approach for realizing F-P lasing and white light emission from a non-toxic green source with a quick, facile and low-cost synthesis procedure.Abstract:
Phosphor materials with broad spectral range and an average emission lifetime (20 μs) have been achieved from carbon dots (CDs)-NaCl crystals. A one-pot synthesis pathway has been developed for CDs-NaCl crystals formation at room temperature. Precursor for CDs materials was screened at room temperature by oxidation methodology from different simple sugar molecules. CDs (size less than 10 nm) prepared from the fructose sugar exhibit most intense emission. Utilizing ripe banana peel (contains ∼27% of fructose) as a precursor for the carbon dot formation, white-light emission with a CIE index of (0.29, 0.34) has been achieved from the single source with CDs-NaCl crystals upon excitation at 430 nm. The crystals also function as Fabry-Perot (F-P) mode resonator for lasing, with a laser threshold value of 0.9 mW and a resonating Q-factor of 207. These results outline a new approach for realizing F-P lasing and white light emission from a non-toxic green source with a quick, facile and low-cost synthesis procedure.read more
Citations
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Journal ArticleDOI
Current scenario and recent advancement of doped carbon dots: a short review scientocracy update (2013–2022)
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Ultra-Broadband Random Laser and White-Light Emissive Carbon Dots/Crystal In-Situ Hybrids.
Jingjing Wang,Shaofeng Zhang,Yunfei Li,Cuiyu Wu,Wenfei Zhang,Hailong Zhang,Zheng Xie,Shuyun Zhou +7 more
TL;DR: In this article , a strategy to realize the in-situ hybridization of silane-functionalized CDs (SiCDs) and 1,3,5-benzenetricarboxylic acid trimethyl ester (Et3BTC) by a one-pot solvothermal method is reported.
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Mg2+-doped carbon dots synthesized based on Lycium ruthenicum in cell imaging and promoting osteogenic differentiation in vitro
Yuxi Hou,Ran Zhang,Hu Cheng,Yue Wang,Qingmei Zhang,Lupeng Zhang,Lu Wang,Li Ran,Wu XiuPing,Lina Bing +9 more
TL;DR: In this article , a Mg2+-doped biogenic carbon dot material was developed to determine the optimal ratio of carbon and magnesium sources in the synthesis of the material, and its high biocompatibility was supported by the preparation of biocarbon dots using natural lycium ruthenicum as the carbon source.
Journal ArticleDOI
The structure and stability of faecal pigment-Zinc(II) complexes
TL;DR: In this paper, an in-depth study on the nature of the faecal pigment-zinc(II) complexes using spectroscopic, thermodynamic and computational studies towards a molecular level understanding regarding its structure, complexation and stability is presented.
Journal ArticleDOI
Rapid and sensitive naked eye detection of faecal pigments using their enhanced solid-state green fluorescence on a zinc acetate substrate.
Swayam Prakash,Ashok K. Mishra +1 more
TL;DR: In this paper , a simple, low-cost and rapid fluorescence-based analytical method has been developed in a solid matrix for faecal pigments like stercobilin and urobilin detection.
References
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Journal ArticleDOI
Water‐Soluble Fluorescent Carbon Quantum Dots and Photocatalyst Design
Haitao Li,Xiaodie He,Zhenhui Kang,Zhenhui Kang,Hui Huang,Yang Liu,Yang Liu,Jinglin Liu,Suoyuan Lian,Chi Him A. Tsang,Xiao-Bao Yang,Shuit-Tong Lee +11 more
TL;DR: The facile one-step alkali-assisted electrochemical fabrication of CQDs with sizes of 1.2– 3.8 nm which possess size-dependent photoluminescence (PL) and excellent upconversion luminescence properties are reported and the design of photocatalysts is demonstrated to harness the use of the full spectrum of sunlight.
Journal ArticleDOI
Carbon nanodots: synthesis, properties and applications
TL;DR: In this article, a review of the photo and electron properties of carbon nanodots is presented to provide further insight into their controversial emission origin and to stimulate further research into their potential applications, especially in photocatalysis, energy conversion, optoelectronics, and sensing.
Journal ArticleDOI
Full-Color Light-Emitting Carbon Dots with a Surface-State-Controlled Luminescence Mechanism.
TL;DR: Carbon dots with tunable photoluminescence (PL) and a quantum yield of up to 35% in water were hydrothermally synthesized in one pot and separated via silica column chromatography, and these separated CDs emitted bright and stable luminescence in gradient colors under a single-wavelength UV light.
Journal ArticleDOI
Broad family of carbon nanoallotropes: classification, chemistry, and applications of fullerenes, carbon dots, nanotubes, graphene, nanodiamonds, and combined superstructures.
TL;DR: Applications of Fullerenes, Carbon Dots, Nanotubes, Graphene, Nanodiamonds, and Combined Superstructures.
Journal ArticleDOI
The C.I.E. colorimetric standards and their use
TL;DR: In this article, the authors define a standard observer, three standard illuminants, standard conditions of illuminating and viewing opaque specimens, a standard for evaluating the brightness factor of opaque specimens and a standard trichromatic system for the expression of colour measurements.