Theoretical Study on the Growth Behavior and Photoelectron Spectroscopy of Lanthanum-Doped Silicon Clusters LaSi n 0/− (n = 6–20)

  • Yaqing Chen
  • Yuming Liu
  • Suying Li
  • Jucai YangEmail author
Original Paper


The growth behavior and electronic properties of the lowest energy structures of neutral LaSin (n = 6–20) and their anions were explored by means of the ABCluster global structure searching strategy combined with the mPW2PLYP double-hybrid density functional. The results revealed that the growth behavior of the lowest energy structures of anionic LaSi n (n = 10–20) clusters choose La-linked two silicon subclusters to La-encapsulated in silicon cages. For neutral LaSin (n = 6–20), the growth behavior of the lowest energy structures from substitutional structure to linked motifs and finally to encapsulated configurations occurs at n = 14 and 20, respectively. The simulated photoelectron spectroscopy, adiabatic electron affinities, vertical detachment energies, relative stability and HOMO–LUMO energy gaps were presented. Analyses of HOMO–LUMO energy gaps, relative stability, and chemical bonding reveal that the LaSi20 possesses ideal thermodynamic and chemical stability in a high Ih-symmetry endohedral motif, which can turn it into suitable constitutional units for cluster-assembled nanomaterials.


The lowest energy structure of La-doped Si clusters Structural growth behavior Simulated photoelectron spectroscopy Relative stability mPW2PLYP 



This work was supported by the National Natural Science Foundation of China (Grant Nos. 21863007 and 21263010), by Program for Innovative Research Team in Universities of Inner Mongolia Autonomous Region (Gran No. NMGIRT-A1603), and by Natural Science Foundation of Inner Mongolia (Grant No. 2016MS0307).

Supplementary material

10876_2019_1541_MOESM1_ESM.docx (1016 kb)
Supplementary material 1 (DOCX 1015 kb)


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Yaqing Chen
    • 1
  • Yuming Liu
    • 2
  • Suying Li
    • 1
  • Jucai Yang
    • 1
    • 2
    Email author
  1. 1.School of Energy and Power EngineeringInner Mongolia University of TechnologyHohhotPeople’s Republic of China
  2. 2.School of Chemical EngineeringInner Mongolia University of Technology and Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry SimulationHohhotPeople’s Republic of China

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