pH-Dependent structure of water-exposed surfaces of CdSe quantum dots.
pH-Dependent structure of water-exposed surfaces of CdSe quantum dots.
复制标题
CdSe 量子点暴露于水的表面的 pH 依赖性结构。
DOI：
10.1039/c9cc01339c
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Weiss,EmilyA
中科院分区：
文献类型：
--
作者：
Westmoreland,DanaE;Nap,RikkertJ;Arcudi,Francesca;Szleifer,Igal;Weiss,EmilyA
由于量子点表面的静电和化学修饰，增加量子点表面的负电荷密度会影响其基态光谱随着pH值的增加而发生红移。这些修饰是通过将表面暴露在水环境中的弱结合配体来实现的。
Increasing negative charge density at the surfaces of CdSe quantum dots (QDs) effects a bathochromic shift of their ground state optical spectra with increasing pH due to electrostatic and chemical modifications at the QD surface. These modifications are enabled by weakly-bound ligands that expose the surface to the aqueous environment.