Wang Min, Huang Zhenzhen, Guo Zilong, Yang Wensheng
State Key Laboratory for Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun 130012 P. R. China
RSC Adv. 2018 Jan 15;8(6):2866-2871. doi: 10.1039/c7ra11804j. eCollection 2018 Jan 12.
The applications of luminescent metal nanoclusters (NCs) in device fabrication have been greatly limited by their tough solidifying process and poor stability. In this work, we report the facile preparation of metal NCs/barium sulfate (BaSO) composites by incorporating luminescent metal NCs into BaSO matrix by subsequent addition of Ba and SO ions into the aqueous dispersions of the metal NCs. The resulting NCs/BaSO composites maintained the luminescent colour of the metal NCs and possessed improved stability under external stimuli, such as heating, strong acid and organic solvents. The solid metal NCs/BaSO composites with blue, green and red emissions were suitable for the fabrication of white light-emitting devices (WLEDs) and multicolour anti-counterfeiting labels.
发光金属纳米团簇（NCs）在器件制造中的应用因其固化过程艰难且稳定性差而受到极大限制。在本工作中，我们报告了通过将Ba和SO离子随后添加到金属NCs的水分散体中，将发光金属NCs掺入硫酸钡（BaSO）基质中，从而简便地制备金属NCs/硫酸钡（BaSO）复合材料。所得的NCs/BaSO复合材料保持了金属NCs的发光颜色，并且在诸如加热、强酸和有机溶剂等外部刺激下具有改善的稳定性。具有蓝色、绿色和红色发射的固态金属NCs/BaSO复合材料适用于制造白光发光器件（WLEDs）和多色防伪标签。
