论文标题
用于研究尺寸和电荷选择的多功能型聚苯纳米颗粒的多功能设置
A versatile setup for studying size and charge-state selected polyanionic nanoparticles
论文作者
论文摘要
以金属簇的示例，提出了实验设置和过程，该设置和过程允许从分子束中的单声道中产生尺寸和电荷态选择的聚体。作为此模块化设置的特征，通过在质量选择后进行了三态数字陷阱中的顺序电子附件的进一步充电过程。与其他方法相反，基于RF的概念允许进入重粒子。相对于制备过程，该过程非常灵活，并且可能适合多种阴离子物种。通过将存储条件（即射频）调整为质量与充电比的变化，我们成功地在高度负电荷状态下产生了簇，即AG $ _ {800}^{7 - } $。通过分析相应的光电子光谱来提取电子和光学金属簇的电子和光学特性来证明设置的功能。
Using the example of metal clusters, an experimental setup and procedure is presented, which allows for the generation of size and charge-state selected polyanions from monoanions in a molecular beam. As a characteristic feature of this modular setup, the further charging process via sequential electron attachment within a 3-state digital trap takes place after mass-selection. In contrast to other approaches, the rf based concept permits to access heavy particles. The procedure is highly flexible with respect to the preparation process and potentially suitable for a wide variety of anionic species. By adjusting the storage conditions, i.e., the radio frequency, to the change in the mass-to-charge ratio, we succeeded to produce clusters in highly negative charge states, i.e., Ag$_{800}^{7-}$. The capabilities of the setup are demonstrated by experiments extracting electronic and optical properties of polyanionic metal clusters by analyzing the corresponding photoelectron spectra.
