title: Magic electron affection in preparation process of silicon nanocrystal.
abstract: It is very interesting that magic electron affection promotes growth of nanocrystals due to nanoscale characteristics of electronic de Broglie wave which produces resonance to transfer energy to atoms. In our experiment, it was observed that silicon nanocrystals rapidly grow with irradiation of electron beam on amorphous silicon film prepared by pulsed laser deposition (PLD), and silicon nanocrystals almost occur in sphere shape on smaller nanocrystals with less irradiation time of electron beam. In the process, it was investigated that condensed structures of silicon nanocrystals are changed with different impurity atoms in silicon film, in which localized states emission was observed. Through electron beam irradiation for 15 min on amorphous Si film doped with oxygen impurity atoms by PLD process, enhanced photoluminescence emission peaks are observed in visible light. And electroluminescence emission is manipulated into the optical communication window on the bigger Si-Yb-Er nanocrystals after irradiation of electron beam for 30 min.
authors.affiliation: Institute of Nanophotonic Physics, Guizhou University, Guiyang 550025(China).
authors.forename: Wei-Qi
authors.initials: WQ
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Ore Deposit Geochemistry Institute of Geochemistry, Chinese Academy of Science Institute of Geochemistry, Guiyang 550003(China).
authors.forename: Shi-Rong
authors.initials: SR
authors.lastname: Liu
authors.affiliation: Institute of Nanophotonic Physics, Guizhou University, Guiyang 550025(China).
authors.forename: Zhong-Mei
authors.initials: ZM
authors.lastname: Huang
authors.affiliation: Institute of Nanophotonic Physics, Guizhou University, Guiyang 550025(China).
authors.forename: Ti-Ger
authors.initials: TG
authors.lastname: Dong
authors.affiliation: Institute of Nanophotonic Physics, Guizhou University, Guiyang 550025(China).
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Ore Deposit Geochemistry Institute of Geochemistry, Chinese Academy of Science Institute of Geochemistry, Guiyang 550003(China).
authors.forename: Cao-Jian
authors.initials: CJ
authors.lastname: Qin