碳量子点在白光发光二极管中的应用进展

Recent Progress in the Application of Carbon Quantum Dots in White-Light-Emitting Diodes

白光发光二极管(WLED)具有能量效率高、工作寿命长、功耗低等优点,多年来受到了学者的广泛重视。目前,大多数商业WLED是使用传统的稀土基荧光粉来构建的。碳量子点(CDs)是一类有吸引力的纳米材料,它具有生物相容性、良好的水溶性、生态友好性、低毒性和光稳定性,最近在生物及光电领域的应用被广泛开发和研究。碳点的电子结构以及光学转换效率可以在很宽的光谱范围内被控制和调整,所以CDs应用在WLED正在受到广泛的重视。本文总结了最近碳量子点在构建WLED方面的进展。

White light emitting diodes (WLEDs) have the advantages of high energy efficiency, long working life and low power consumption, and have been widely studied by scholars for many years. Currently, most commercial WLEDs are constructed using traditional rare-earth-based phosphors. Carbon quantum dots (CDs), an attractive class of nanomaterials with biocompatibility, good water solubility, eco-friendliness, low toxicity, and photostability, have recently been widely developed for bio- and opto-electronic applications. The electronic structure and optical conversion efficiency of carbon dots can be controlled and tuned in a wide spectral range, so the application of CDs in WLEDs is receiving extensive attention. We summarize the recent progress of carbon quantum dots in constructing WLEDs.