Wenwen Lin, Yu Wei, Min Feng, Chao Li, Baorui Zhang*, Jun Kang, Wendi Liu* and Shanyue Guan*,
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Visible-Light Excited Multicolor Room Temperature Phosphorescence of Boron and Nitrogen Co-Doped Carbon Dots
Recently, room temperature phosphorescence (RTP) materials have drawn considerable attention owing to their extended emission lifetime, substantial Stokes shift, heightened environmental sensitivity, etc. Carbon dots (CDs) are RTP material candidates that possess outstanding optical stability, good water solubility, nontoxic nature, and facile functionalization. Herein, we developed a simple and rapid method for preparing heteroatom-doped RTP CDs and regulating their luminescent properties via controlling the doping element and structure. The obtained CDs can be excited by both ultraviolet and visible light. An obvious improvement in RTP lifetime and yield as well as modulation of emission wavelength can be achieved. The maximum lifetime of the obtained RTP CDs reaches 754.05 ms, with a phosphorescence quantum yield of 16.78%, and the emission wavelength of RTP can be effectively controlled from cyan to yellow. These outstanding properties ensure their utilization in areas like information encryption and anticounterfeiting.
期刊介绍：
ACS Applied Optical Materials is an international and interdisciplinary forum to publish original experimental and theoretical including simulation and modeling research in optical materials complementing the ACS Applied Materials portfolio. With a focus on innovative applications ACS Applied Optical Materials also complements and expands the scope of existing ACS publications that focus on fundamental aspects of the interaction between light and matter in materials science including ACS Photonics Macromolecules Journal of Physical Chemistry C ACS Nano and Nano Letters.The scope of ACS Applied Optical Materials includes high quality research of an applied nature that integrates knowledge in materials science chemistry physics optical science and engineering.
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