Abstract
In recent years, room temperature phosphorescent (RTP) materials have experienced rapid growth due to their enduring luminescence, high resolution, and other distinctive characteristics. Simultaneously, carbon dots (CDs) have gained popularity across various disciplines for their efficient luminescence, straightforward synthesis, and environmental friendliness. In this study, we successfully synthesized a range of high-performance carbon dot materials using a simple one-step hydrothermal method. Through detailed morphological and photophysical characterizations, we discovered that these materials exhibited a remarkable phosphorescence quantum yield of up to 53.15 %, an impressive feat for both metal and non-metal carbon dot materials. Furthermore, we explored the enhancing effect of the heavy atom on ultra-efficient long afterglow RTP carbon dot composites and experimentally validated its effectiveness. Finally, we applied these materials to information encryption technology, offering novel ideas and methods for RTP material applications. This research not only opens new avenues for the development of carbon dot materials but also provides a promising direction and outlook for their future use.
Published Version
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