氧化石墨烯作为石墨烯的一种带隙打开的衍生物, 极大地丰富了其光学性质, 并拓展了它在传感和成像方面的应用, 特别是氧化石墨烯限域的π共轭结构对构建发光碳材料提供了十分便利的条件。目前, 有大量的研究工作报道了氧化石墨烯及其衍生物能够产生多种颜色的荧光信号, 然而, 系统地总结这些研究去揭示氧化石墨烯发光机理的相关工作还比较少。本文总结了关于发光氧化石墨烯纳米材料的合成及其在光学成像方面应用的大量研究工作, 为进一步开发新型的发光氧化石墨烯材料提供一些建设性意见。

As an opened-bandgap derivative, graphene oxide greatly enriches its optical properties and extends its applications in sensing and imaging. In particular, graphene oxide-confined π-conjugated structures provide very favorable conditions for the construction of luminescent carbon materials. Nowadays, more and more works have reported that graphene oxide and its derivatives can generate multicolor fluorescent signals. However, systematically summarizing these studies to reveal the luminescence mechanism of graphene oxide are still relatively rare. In this paper, the synthesis of luminescent graphene oxide nanomaterials and their application in optical imaging are summarized, which provides some constructive suggestions for the further development of new luminescent graphene oxide materials.