%0 Journal Article
%T The Efficient Visible Light from the Surface Layer of Porous Silicon<br>多孔硅的高效可见光发射来自其表面
%A ZHOU Yongdong
%A JI Yixin
%A <br>周咏东
%A 金亿鑫
%J 无机材料学报
%D 1997
%I Science Press
%X The visible cathodolumincscence (CL) spectrum of the visible light emitting porous silicon(peaked at 680nm) was obtAlNed and proved to be similar to the photoluminescence one. The sourceof CL was detected by the scanning electron microscopy (SEM). The SEM microphotographes ofthe surface of the sample shows that the CL only emits from the surface layer and there is no CLfrom the porous layer where the surface layer dropped off. The SEM microphotogrophes on thecross section of the sample shows the same result. The above experiments suggest agAlN that thevisible luminescence from the porous silicon is from the fluorescent material in the surface layer ofthe porous silicon.
%K porous silicon
%K photoluminescence
%K cathodoluminescence
%K SEM<br>多孔硅
%K 光致发光
%K 半导体材料
%K 硅
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=76EBA4C8813A5785BC048739243B6FBF&yid=5370399DC954B911&vid=59906B3B2830C2C5&iid=38B194292C032A66&sid=389DA78D878702A9&eid=E57FE519484CFB70&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=0&reference_num=8