Engineering the Self-Assembly Induced Emission of Copper Nanoclusters as 3D Nanomaterials with Mesoporous Sphere Structures by the Crosslinking of Ce3+
Engineering the Self-Assembly Induced Emission of Copper Nanoclusters as 3D Nanomaterials with Mesoporous Sphere Structures by the Crosslinking of Ce3+
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通过 Ce3 交联将铜纳米团簇自组装诱导发射设计为具有介孔球结构的 3D 纳米材料
DOI：
10.1021/acsomega.8b02204
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发表时间：
2018-11-01
期刊：
影响因子：
4.1
通讯作者：
Mei, Xifan
中科院分区：
文献类型：
--
作者：
Li, Dan;Wang, Guannan;Mei, Xifan
聚集诱导发射为金属纳米团簇提供了荧光增强策略。然而，由于纳米团簇的聚集路径是随机的，因此聚集的纳米团簇的形貌往往是不规则的，这将导致形成不稳定的产物。在此，通过使用L-半胱氨酸作为还原和保护配体直接合成铜纳米簇。最初，产品的结构是不规则的。此外，Ce 3+的引入通过交联途径使聚集体重新排列。有趣的是，发现重新聚集后，得到了有序的三维纳米材料的介孔球结构。在较高温度下的稳定性测试和发光二极管的制备研究的基础上，它表明，调节产品表现出更有前途的稳定性和颜色纯度的实际应用比随机聚集的产品具有不规则的结构。
Aggregation-induced emission has provided fluorescence enhancement strategies for metal nanoclusters. However, the morphology of the aggregated nanoclusters tended to be irregular due to the random aggregated route, which would result in the formation of an unstable product. Herein, copper nanoclusters were directly synthesized by using L-cysteine as both the reducing and protection ligand. Initially, the structure of the product was irregular. Furthermore, Ce3+ was introduced to re-arrange the aggregates through a crosslinking avenue. It was interesting to find that well-ordered three-dimensional nanomaterials with mesoporous sphere structures were obtained after re-aggregation. On the basis of the stability test at a relatively high temperature and the light-emitting diode fabrication investigation, it revealed that the regulated product demonstrated more promising stability and color purity for practical applications than the random aggregated product with irregular structures.