2021
DOI: 10.1021/acsomega.0c05993
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Abstract: Fluorescent carbon dots (CDs) represent a promising eco-friendly next-generation phosphor. However, most CDs exhibit broad photoluminescence (PL) spectra [full width at half-maximum (fwhm) over 60 nm]; few works on CDs with sharp PL spectra (fwhm less than 40 nm) have been reported. In addition, their syntheses and color tuning require harsh conditions of high temperatures, long reaction times, and high pressures with catalysts. Here, we successfully prepared narrow-bandwidth emissive CDs (fwhm of 27−40 nm) fr… Show more

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Cited by 25 publications
(28 citation statements)
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“…
are less than 30 nm, but only one is prepared by hydrothermal method, and the other reaction systems are organic solvents, as shown in Table S1 (Supporting Information). [6][7][8][9][10][11][12][13][14] However, low fluorescence quantum yield (QY) can limit their applications. For instance, white light emitting diodes only based on luminescent materials with low QY are difficult to realize.
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mentioning
confidence: 99%
“…
are less than 30 nm, but only one is prepared by hydrothermal method, and the other reaction systems are organic solvents, as shown in Table S1 (Supporting Information). [6][7][8][9][10][11][12][13][14] However, low fluorescence quantum yield (QY) can limit their applications. For instance, white light emitting diodes only based on luminescent materials with low QY are difficult to realize.
…”
mentioning
confidence: 99%
“…There is full width at half maxima (FWHM) in PL spectra of CDs-B solution due to the nonuniform size and a variety of surface functional groups of CDs. 45 Figure 4d shows the PL spectra of CDs-G solution. The emission peak of CDs-G solution red-shifts along with the excitation wavelength increasing from 360 to 500 nm as shown in Figure 4c.…”
Section: Resultsmentioning
confidence: 99%
“…This indicates that CDs-B solution could not emit orange or red fluorescence. There is full width at half maxima (FWHM) in PL spectra of CDs-B solution due to the nonuniform size and a variety of surface functional groups of CDs Figure d shows the PL spectra of CDs-G solution.…”
Section: Resultsmentioning
confidence: 99%
“…S1. Sources: References [28], [36], [37], [39], [41], [43][44][45][46], [48], [52][53][54][55], [60], [63][64][65][66][67][68][69][70], [72], [73], [78], [79], [80][81][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96][97][98][99].…”
Section: Elemental Compositionmentioning
confidence: 99%
“…Peak emission wavelength as a function of average size (determined by TEM) for ~160 CDs reported in literature. Source: References [28],[30],[32],[33],[35][36][37][38],[44],[46][47][48],[52][53][54],[56],[58][59][60],[64],[65],[67],[68],[70],[78],[79],[81],[84],[85],[87],[88],[90][91][92][93][94][95],[97],[98],[110][111][112][113][114][115][116][117],[119][120][121][122][123][124]...…”
mentioning
confidence: 99%