Abbreviation (ISO4): Journal of Materials Engineering
Editor in chief: Xiangbao CHEN
Journal of Materials Engineering >
Research progress in preparation and application of high-color-purity fluorescent carbon dots
Received date: 2022-11-21
Revised date: 2023-08-12
Online published: 2024-03-10
Narrow-band,high-color-purity luminescent materials are widely used in the fields of ultra-high-definition display and lighting,super-resolution imaging and sensing,bio-imaging and anti-counterfeiting. However,the high-color-purity fluorescent materials mainly used are Ⅱ-Ⅳ semiconductor quantum dots,halide perovskite nanocrystals and so on,which generally contains highly toxic transition metal ions such as Cd and Pb. Moreover,these materials often show low environmental stability. In contrast,carbon dots have many advantages including no heavy metal ions,high photo/chemical stability,low toxicity and wide source of raw materials. Therefore, developing fluorescent carbon dots with high-color-purity has important theoretical and practical significance. Here,the research progress of the synthesis and application of high-color-purity carbon dots was reviewed;the effects of precursor,synthetic methods and some factors on the position and the full width at half maximum of the carbon dots and the application in the field of LED, sensing and imaging were discussed. Additionally,the opportunities and challenges of high-color-purity carbon dots in large-scale synthesis,optical properties including the tune of PL position,the enhancement of the fluorescent quantum yield and color purity,understanding their photoluminescence mechanism as well as developing new applications were proposed.
Key words: high-color-purity; carbon dots; preparation; application
Yanan LI , Yun LIU , Chunyan LIU , Junping XIAO . Research progress in preparation and application of high-color-purity fluorescent carbon dots[J]. Journal of Materials Engineering, 2023 , 51(11) : 14 -22 . DOI: 10.11868/j.issn.1001-4381.2022.000980
表1 合成高色纯度碳点所用的前驱体、合成方法以及光谱特性Table 1 Precursor,synthesis method and spectral properties of high-color-purity carbon dots |
Precursor | Synthesis method | Fluorescence position/nm | FWHM/nm | QY/% | Reference |
---|---|---|---|---|---|
Phloroglucinol | Solvothermal | 472 507 538 598 | 30 29 30 30 | 66 72 62 54 | [30] |
Resorcinol | Solvothermal | 520 610 | 31 33 | 75 72 | [31] |
Phloroglucinol | Heated in an open system | 463 479 481 484 508 509 511 | 40 32 30 32 29 28 27 | 7.2 46 51 47 51 45 48 | [32] |
1,3-dihydroxynaphthalene | Solvothermal | 560 | 30 | 79.7 | [33] |
2,7-naphthalenediol and N,N-Dimethylformamide (DMF) | Solvothermal | 550 | 43 | 38 | [34] |
o-phenylenediamine and HNO3 | Hydrothermal | 630 | 40 | 31.54 | [35] |
o-phenylenediamine | Solvothermal | 620 | 24 | 1.9 | [36] |
o-phenylenediamine and L-/D-cysteine | Solvothermal | 604 | 23.16 | 53.62 | [37] |
o-phenylenediamine | Solvothermal | 595 | 31 | 34.8 | [38] |
o-phenylenediaminea and kraft lignin | Solvothermal | 623 | 31 | 16.26 | [39] |
o-phenylenediaminea and acetic acid | Hydrothermal | 308 | 24 | 20.2 | [40] |
o-phenylenediaminea and citric acid | Hydrothermal | 447 | 40 | 61 | [41] |
1,4-diaminonaphthalene | Solvothermal | 581 | 30 | 82 | [42] |
1,5-diaminonaphthalene and citric acid | Solvothermal | 433 | 35 | 70±10 | [43] |
tris(4-aminophenyl)amine | Solvothermal | 615±2 | 27±1 | 84±5 | [44] |
Rose bengal sodium salt and branched polyethylenimine | Solvothermal | 528 | 30 | 90.49 | [45] |
Tin(Ⅱ) phthalocyanine phthalocyanine | Solvothermal | 683 667 | 21 30 | 7.5 40.6 | [11] |
Ethylene glycol | H2SO4-induced carbonization | 518 | 38 | 62.9 | [46] |
Glutathione and formamide | Microwave | 683 | 30 | 16.8 | [47] |
perylene-3,4,9,10-tetracarboxylic -dianhydride | Solvothermal | 382 and 401 | 30 | 23.9 | [48] |
Dry taxus leaves | Solvothermal | 673 | 20 | 59 | [12] |
Fresh mulberry leaves | Solvothermal | 676 | 20 | 72.6 | [49] |
Fresh magnolia denudata leaves | Solvothermal | 678 | 25 | 22.66 | [50] |
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