双矿的合合成
Federico Locardi1, Matilde Cirignano, Dmitry Baranov
1Dipartimento di Chimica e Chimica Industriale , Università degli Studi di Genova , Via Dodecaneso 31 , 16146 Genova , Italy.
Journal of the American Chemical Society
|September 11, 2018
概括
研究人员开发了一种双矿银六化物 (Cs2AgInCl6) 纳米晶体的合合成方法. 使用 (Mn) 增强了它们的白色光发光,使其发出明亮的色辐射,并提高了量子产量.
科学领域:
- 材料科学
- 纳米技术
- 无机化学
背景情况:
- 双矿Cs2AgInCl6纳米晶体 (NCs) 是光电子应用的有希望的材料.
- 开发这些NC的受控合成方法对于调整它们的特性至关重要.
- 现有的合成路径可能无法精确控制尺寸分布和光学特征.
研究的目的:
- 报告控制尺寸分布的双矿Cs2AgInCl6的第一个合合成.
- 为了研究原始和Mn-dopedCs2AgInCl6NCs的光发特性.
- 通过补充来增强Cs2AgInCl6NC的光学性能.
主要方法:
- 在105°C下使用金属碳酸盐前体,油胺,油酸,二乙烯和酸进行合合成.
- 将酸盐加入到反应混合物中,以进行Mn-doped的NC合成.
- 使用X射线衍射 (XRD),元素分析和电子自旋共振 (ESR) 光谱进行表征.
- 光发光 (PL) 量子产量测量
主要成果:
- 实现了Cs2AgInCl6NC的受控尺寸分布,预期的双矿晶体结构.
- 清洁的Cs2AgInCl6NC表现出稳定的广谱白光发光,量子产量为~1.6%.
- 的化剂 (高达1.5%) 导致明亮的色辐射,PL的量子产量显著增加了~16%.
结论:
- 开发的合合成方法可以控制Cs2AgInCl6NCs的产生.
- 补充有效地增强了Cs2AgInCl6NCs的光发光特性,从而产生了高效的色发射器.
- 这些Mn-dopedCs2AgInCl6NC显示了需要可调节和高效光发射的应用的潜力.
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