%0 Journal Article %T Crystal-Field Symmetry of LuminescenceCenter in Er-Implanted Silicon %A 雷红兵 %A 杨沁清 %A 王启明 %A 周必忠 %J 半导体学报 %D 1997 %I %X Rare-earth doping of semiconductors has been intensively investigated with a view to it sapplication in optoelectronic devices.The presence of an incompletely filled 4f shell offers the attractive possibility of induced intrashell excitations,largely independent of the s... %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=6349CA5B5AB38410&yid=5370399DC954B911&vid=13553B2D12F347E8&iid=59906B3B2830C2C5&sid=90EAFEE49150CFCD&eid=40541F483644ACC4&journal_id=1674-4926&journal_name=半导体学报&referenced_num=0&reference_num=0