• A facile method was developed to achieve visible light (green) and near infrared dual-mode afterglow emissions from carbon dots (CDs)-based materials at ambient conditions for the first time.

• We proposed a promising method in advanced information security applications through a special manner of readout.

• The as-developed method was confirmed to be applicable to many kinds of CDs for achieving or enhancing their afterglow performances.

中文翻译：

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碳点的绿色和近红外双模余辉及其在机密信息读出中的应用

• 开发了一种简便的方法，首次在环境条件下实现基于碳点 (CD) 的材料的可见光（绿色）和近红外双模余辉发射。

• 我们通过一种特殊的读出方式提出了一种在高级信息安全应用中很有前途的方法。

• 所开发的方法被证实适用于多种CD，以实现或增强其余辉性能。