Статья

Red, Green, and Blue Luminescence by Carbon Dots: Full‐Color Emission Tuning and Multicolor Cellular Imaging

Kai JiangDepartment of Applied Physics, Chongqing University, Chongqing 401331 (P. R. China); Division of Functional Materials and Nano-Devices, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy Sciences, Ningbo 315201 (P. R. China)Shan SunDivision of Functional Materials and Nano-Devices, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy Sciences, Ningbo 315201 (P. R. China)Ling ZhangDivision of Functional Materials and Nano-Devices, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy Sciences, Ningbo 315201 (P. R. China)Yue LüDivision of Functional Materials and Nano-Devices, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy Sciences, Ningbo 315201 (P. R. China)Aiguo WuDivision of Functional Materials and Nano-Devices, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy Sciences, Ningbo 315201 (P. R. China)Congzhong CaiDepartment of Applied Physics, Chongqing University, Chongqing 401331 (P. R. China)Hengwei LinDivision of Functional Materials and Nano-Devices, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy Sciences, Ningbo 315201 (P. R. China)

2015en

ABI

Аннотация

A facile approach for preparation of photoluminescent (PL) carbon dots (CDs) is reported. The three resulting CDs emit bright and stable red, green and blue (RGB) colors of luminescence, under a single ultraviolet-light excitation. Alterations of PL emission of these CDs are tentatively proposed to result from the difference in their particle size and nitrogen content. Interestingly, up-conversion (UC)PL of these CDs is also observed. Moreover, flexible full-color emissive PVA films can be achieved through mixing two or three CDs in the appropriate ratios. These CDs also show low cytotoxicity and excellent cellular imaging capability. The facile preparation and unique optical features make these CDs potentially useful in numerous applications such as light-emitting diodes, full-color displays, and multiplexed (UC)PL bioimaging.

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Идентификаторы

DOI: 10.1002/anie.201501193

Цитирования и источники

Цитирований: 4Использованных источников: 0

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