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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Soft-template synthesis of nitrogen-doped carbon nanodots: tunable visible-light photoluminescence and phosphor-based light-emitting diodes
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Soft-template synthesis of nitrogen-doped carbon nanodots: tunable visible-light photoluminescence and phosphor-based light-emitting diodes

机译：氮掺杂碳纳米点的软模板合成：可调谐可见光光致发光和基于磷的发光二极管

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摘要

Carbon nanodots (CND) have recently attracted tremendous attention for a variety of optical and optoelectronic applications. Although many attempts have been made to obtain high-quality CND in high yield, there have been few endeavors to regulate its energy structure. In this work, we have synthesized nitrogen-doped carbon nanodots (N-CND) through soft-template synthesis using citric acid and ethylenediamine (EDA) as carbon and nitrogen sources, respectively. The energy structure of N-CND has been modulated by regulating the concentration of EDA. A series of spectroscopic measurements showed that the absorption peak is developed near 370 nm and the photoluminescence peak is red-shifted with increasing nitrogen content. To utilize N-CND's strong near-UV absorption, broad-range visible-light emission, high quantum yield, and good organic compatibility, we have demonstrated phosphor-based light-emitting diodes employing N-CND as a phosphor.
机译：碳纳米点（CND）最近在各种光学和光电应用中引起了极大的关注。尽管已经进行了许多尝试以高收率获得高质量的CND，但是很少有努力调节其能量结构。在这项工作中，我们分别通过使用柠檬酸和乙二胺（EDA）作为碳源和氮源的软模板合成合成了氮掺杂的碳纳米点（N-CND）。 N-CND的能量结构已通过调节EDA的浓度进行了调节。一系列光谱测量表明，吸收峰出现在370 nm附近，并且随着氮含量的增加，光致发光峰发生红移。为了利用N-CND的强大的近紫外线吸收能力，宽范围的可见光发射，高量子产率和良好的有机相容性，我们展示了使用N-CND作为荧光粉的基于荧光粉的发光二极管。

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