State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, PR China.
Nanoscale. 2013 May 21;5(10):4015-39. doi: 10.1039/c3nr33849e.
To obtain graphene-based fluorescent materials, one of the effective approaches is to convert one-dimensional (1D) graphene to 0D graphene quantum dots (GQDs), yielding an emerging nanolight with extraordinary properties due to their remarkable quantum confinement and edge effects. In this review, the state-of-the-art knowledge of GQDs is presented. The synthetic methods were summarized, with emphasis on the top-down routes which possess the advantages of abundant raw materials, large scale production and simple operation. Optical properties of GQDs are also systematically discussed ranging from the mechanism, the influencing factors to the optical tunability. The current applications are also reviewed, followed by an outlook on their future and potential development, involving the effective synthetic methods, systematic photoluminescent mechanism, bandgap engineering, in addition to the potential applications in bioimaging, sensors, etc.
为了获得基于石墨烯的荧光材料，一种有效的方法是将一维（1D）石墨烯转化为零维（0D）石墨烯量子点（GQDs），由于其显著的量子限制和边缘效应，产生了一种新兴的纳米光源，具有非凡的性质。在这篇综述中，介绍了 GQDs 的最新知识。总结了合成方法，重点介绍了自上而下的路线，该路线具有原料丰富、大规模生产和操作简单的优点。还系统地讨论了 GQDs 的光学性质，包括机制、影响因素和光学可调谐性。综述了其目前的应用，并对其未来和潜在发展进行了展望，涉及有效合成方法、系统的光致发光机制、能带工程，以及在生物成像、传感器等方面的潜在应用。
