激光溅射下原子团簇生长的非平衡动力学

在“半球模型”的基础上，在考虑了因等离子体膨胀和热辐射等引起的温度答体积的变化的情况下，进一步考虑了碳簇的链状、单环、双环、多环及富勒烯等五种结构及中性粒子与中性粒子、中性粒子与离子两种反应，计算了碳簇中性分子和离子的形成动力学及其尺寸分布。

Non-equilibrium Kinetics of Clusters Growth under Laser Ablation(II)

Non-equilibrium kinetics of cluster formation has been simulated based on “hemisphere model”of laser plasma expansion. In this article, in addition to the variation of concentration and temperature caused by expansion and radiation, reactivities of different structures and structural conversions among the cluster isomers were also considered. Dissociation of the clusters in the laser plasma and productions of the cluster ions have also been included in the simulation at the first time. The simulated size distribution of carbon clusters is in good consistency with the typical mass spectrum of carbon cluster ions produced by laser ablation.