Precursor Symmetry Triggered Modulation of Fluorescence Quantum Yield in Graphene Quantum Dots

• DOI: 10.1002/adfm.202401246
• Publication Date: 2024-03-18T08:19:58Z
• Authors: Liangfeng Chen; Siwei Yang; Yongqiang Li; Zheng Liu; Hang Wang; Yuqing Zhang; Kai Qi; Gang Wang; Peng He; Guqiao Ding
• Keywords: Quantum yield

Abstract Although various effective machine‐learning attempts have been made to investigate the photoluminescence properties of graphene quantum dots (GQDs) or carbon dots, physical correlation behind their mathematical models has not reasonably elucidated. In this work, mechanism between precursor structure and yield GQDs prepared by a “bottom‐up” method is sufficiently studied. Three decisive factors affecting during two‐component reaction system preparation are revealed, namely factor (F1), temperature (F2), concentration (F3). The symmetry precursors in formation sp 2 – 3 hybrid nanostructures considered key modulation fluorescence GQDs. Notably, contrast previous it first demonstrated that normal modes molecular vibration core which structural act on conclusion further proved conducive obtaining with higher absolute up 83.33%.