Insight into excitation-related luminescence properties of carbon dots: synergistic effect from photoluminescence centers in the carbon core and on the surface
文献类型：期刊论文
| 作者 | Li, Bo1,2 ; Guo, Yali1; Iqbal, Anam1; Dong, Yaping2; Li, Wu2; Liu, Weisheng1; Qin, Wenwu1; Wang, Yabin2,3
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| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:109页码:107263-107269 |
| 文献子类 | Article |
| 英文摘要 | Excitation-dependent luminescence (EDE) or excitation-independent luminescence (EIE) property of carbon dots (CDs) has attracted considerable attention. For the first time, we found that nitrogen doped CDs possess adjustable EDE and EIE properties by changing the corresponding environmental pH values for photoluminescence (PL) properties. Structural characterizations and property tests demonstrate that the unique photoluminescence properties of CDs can be attributed to the synergistic effect from the PL centers in the carbon core and on the surface. Doping nitrogen into the carbon core improves the emission efficiency of PL centers; these enhanced PL sites can even dominate fluorescence emission. Passivated surfaces of CDs modified with amino groups not only further boost the emission efficiency, but also make energy levels of PL centers more uniform. In addition, the mechanism of synergistic effect is investigated, which opens up the possibility of designing CDs with desirable PL characteristics. Such nitrogen-doped CDs with adjustable excitation-related luminescence properties have potential applications in detecting acidity or alkalinity of a certain physiological environment by intuitively observing the change in the wavelength. |
| WOS关键词 | GRAPHENE QUANTUM DOTS ; FULL-COLOR EMISSION ; ONE-STEP SYNTHESIS ; PHOTOCATALYTIC ACTIVITY ; INDEPENDENT EMISSION ; BLUE LUMINESCENCE ; DEEP-ULTRAVIOLET ; NITROGEN ; FLUORESCENCE ; LIGHT |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000389342400015 |
| 源URL | [http://ir.isl.ac.cn/handle/363002/6177]  |
| 专题 | 青海盐湖研究所_青海盐湖研究所知识仓储 青海盐湖研究所_盐湖资源综合利用工程技术中心 |
| 作者单位 | 1.Lanzhou Univ, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China 3.Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Bo,Guo, Yali,Iqbal, Anam,et al. Insight into excitation-related luminescence properties of carbon dots: synergistic effect from photoluminescence centers in the carbon core and on the surface[J]. RSC ADVANCES,2016,6(109):107263-107269. |
| APA | Li, Bo.,Guo, Yali.,Iqbal, Anam.,Dong, Yaping.,Li, Wu.,...&Wang, Yabin.(2016).Insight into excitation-related luminescence properties of carbon dots: synergistic effect from photoluminescence centers in the carbon core and on the surface.RSC ADVANCES,6(109),107263-107269. |
| MLA | Li, Bo,et al."Insight into excitation-related luminescence properties of carbon dots: synergistic effect from photoluminescence centers in the carbon core and on the surface".RSC ADVANCES 6.109(2016):107263-107269. |
入库方式： OAI收割
来源：青海盐湖研究所
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