A novel method for the synthesis of carbon dots assisted by free radicals

Multicolor and Single-Component White Light-Emitting Carbon Dots from a Single Precursor for Light-Emitting Diodes

“…), generally accompanying the multi-component white phosphors as discussed above (group 2, Table S1). Despite the enormous efforts and explorations, reports that have realized the facile and efficient syntheses of multicolor CDs and single-component W-CDs simultaneously in a single reaction system have been rather limited − (group 3, Table S1), significantly hindering the continuous advancement of this field. Furthermore, in these precedents, the WLEDs either exhibited cold white light (i.e., CCT > 5000 K) or poor color-rendering properties (i.e., CRI < 90).…”

Synthesis and characterization of single-phase Tb3+/Eu3+ doped metal–organic framework phosphors for warm light WLED applications

“…The quantum yield of Tb/Eu@bio-MOF-1 (1) was 52.9%, which is higher than those in most reported works. 11–13 …”

“…Based on our results, the Tb/Eu@bio-MOF-1 (1) may achieve a white light (CIE coordinates: 0.328, 0.338) with a quantum yield as high as 52.9%, which is higher than those in most reported works. [11][12][13] A WLED device was prepared by the combination of an n-UV chip (365 nm) with Tb/Eu@bio-MOF-1 (1). The CRI and CCT values were 86.2 and 4725 K, respectively.…”

One-Pot Synthesis of Dual Color-Emitting CDs: Numerical and Experimental Optimization towards White LEDs

“…Furthermore, such CDs need to be uniformly incorporated into solid-state matrices without relevant degradation of their spectroscopic characteristics [ 18 , 19 , 20 ]. In the past few years, synthesis of CDs through solvothermal treatment of various types of molecular carbonaceous precursors has emerged as a very effective approach to obtaining multicolored emissive CDs [ 13 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. Instead, most of the reported methods for fabricating color-converting nanocomposites rely on blending CDs obtained through separate syntheses, having emission in the blue, green and red upon excitation by a primary source [ 13 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”

“…In the past few years, synthesis of CDs through solvothermal treatment of various types of molecular carbonaceous precursors has emerged as a very effective approach to obtaining multicolored emissive CDs [ 13 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. Instead, most of the reported methods for fabricating color-converting nanocomposites rely on blending CDs obtained through separate syntheses, having emission in the blue, green and red upon excitation by a primary source [ 13 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. Although these strategies allow fine adjustment of the final CCT and CRI via easy regulation of the fluorophore’s relative concentrations, they necessarily involve multiple steps for the synthesis and purification of individual CDs.…”