Figure 6 . (A) Schematic illustration of quenching-resistant
photoluminescence of surface-functionalized GQDs. Reproduced with
permission.[95] Copyright 2021, Wiley-VCH. (B)
Quantum yield and PL intensity at different concentrations of CDs.
Reproduced with permission.[99] Copyright 2017,
American Chemical Society. (C) Schematic of the synthesis of CDs and the
CDs aggregation induced emission enhancement effect caused by
tetrahydrofuran. Reproduced with permission.[101]Copyright 2015, Royal Society of Chemistry. (D) Formation of CDs
monomers and their aggregates. Reproduced with
permission.[102] Copyright 2019, Springer. (E)
Fluorescence and phosphorescence processes of CDs powder at ambient
conditions. Reproduced with permission.[105]Copyright 2019, Wiley-VCH. (F) Schematic diagram of cross-link-enhanced
emission effect leading to the generation of room temperature
phosphorescence. Reproduced with permission.[106]Copyright 2019, Wiley-VCH. (G) Proposed room temperature phosphorescence
mechanism of CDs with different degrees of crosslinking. Reproduced with
permission.[107] Copyright 2022, Wiley-VCH.