中文摘要：

碳量子点是纳米材料领域一个备受关注的荧光纳米材料，仅近几年里，基于碳量子点的研究，在制备和应用方面均取得了许多突破性的进展。本文简述了碳量子点的优异特性及其合成方法，重点概述了碳量子点的修饰、复合材料的制备以及在发光二极管（LED）应用方面的最新研究进展。以期为碳量子点的发展应用提供思路和参考。

英文摘要：

Carbon quantum dots have attracted much recent attention among the nano-materials family. Recent development on the synthesis and applications of carbon quantum dots materials was reviewed. The superiority and synthesis methods of carbon quantum dots were introduced, and the modification, preparation of composites and application in light emitting diode （LED） of carbon quantum dots were summarized. This review could provide the corresponding information on the future development of carbon quantum dots.