Near-infrared enhanced carbon nanodots by thermally assisted growth

被引：32

作者：

Wen, Xiaoming ^{[1
]}

Yu, Pyng ^{[1
]}

Toh, Yon-Rui ^{[1
]}

Lee, Yu-Chieh ^{[1
]}

Hsu, An-Chia ^{[1
]}

Tang, Jau ^{[1
]}

机构：

[1] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 16期

关键词：

GRAPHENE QUANTUM DOTS; PHOTOLUMINESCENCE; EMISSION; NANOPARTICLES; NANOCRYSTALS; FLUORESCENCE; OXIDE;

D O I：

10.1063/1.4760275

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The near-infrared emission, matching the biological window, is conducive to biological applications. To date, most of the reported carbon nanodots emit the blue to green fluorescence and few of carbon nanodots emit the near-infrared with relatively lower efficiency. Here, we report an approach to generate or to enhance the near-infrared luminescence from the green luminescent carbon nanodots. Experiments reveal that the near-infrared emission is significantly enhanced by thermally assisted growth in vacuum, which is attributed to the formation of the larger nano-domains from the small carbon clusters at elevated temperatures. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4760275]

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页数：4

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