The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
College of Life Sciences, Xinxiang Medical University, Xinxiang, 453003, China.
Dalton Trans. 2021 Sep 14;50(35):12188-12196. doi: 10.1039/d1dt01510a.
Because of direct π-π interactions and excessive energy resonance transfer, it is very challenging to prepare carbon dots (CDs) with a high fluorescence quantum yield (QY) in the solid state. In this study, novel CDs which gave solid-state fluorescence (SSF) with high brightness were successfully prepared a simple microwave-assisted method. The prepared ScCDs can emit strong blue fluorescence in the solid state, and the absolute QY of this ScCDs powder reaches 51.7%. Such a high QY means that the ScCDs powder could be successfully applied in rapid latent fingerprint (LFP) detection. The LFP detection performance of this ScCDs powder was studied in detail, and the results show that the LFPs developed using the ScCDs powder can be visualized with high definition and contrast under different conditions. This research not only developed a new type of SSF-emitting CDs, but it also proved that the developed CDs have great potential for applications in LFP detection, and this research may also provide inspiration and ideas for the design of new SSF-emitting CDs.
由于直接的π-π相互作用和能量共振转移，制备具有高荧光量子产率（QY）的固态碳点（CDs）极具挑战性。在这项研究中，我们成功地采用一种简单的微波辅助方法制备了具有高亮度固态荧光（SSF）的新型 CDs。所制备的 ScCDs 在固态下能发出强烈的蓝色荧光，且该 ScCDs 粉末的绝对 QY 达到 51.7%。如此高的 QY 意味着 ScCDs 粉末可以成功应用于快速潜伏指纹（LFP）检测。我们详细研究了 ScCDs 粉末的 LFP 检测性能，结果表明，在不同条件下，使用 ScCDs 粉末开发的 LFPs 可以实现高清晰度和高对比度的可视化。这项研究不仅开发了一种新型的 SSF 发射 CDs，还证明了所开发的 CDs 在 LFP 检测中有很大的应用潜力，这项研究可能也为新型 SSF 发射 CDs 的设计提供了灵感和思路。
