%0 Journal Article
%T Band-to-Band Absorption Edges Study of Si/Ge Quantum Wells<br>锗硅量子阱结构带间吸收边研究
%A Huang Shihua
%A <br>黄仕华
%J 光子学报
%D 2006
%I 
%X The band-to-band absorption edges of Si/Ge quantum wells were characterized by photocurrent measurement.The regular change of absorption edge was observed in different bias voltage and temperature condition.By fitting of band-to-band absorption edges,the bandgap of Si conduction band to Ge valence band was acquired.With the increase of external electric field,absorption edge curves shifted to low energy direction.By theory calculation,the relationship between the shift of absorption and external electric field was obtained,and it was well agreement with experiment.With the decrease of temperature,absorption edge shifted toward high energy direction.The qualitative analysis of this phenomena was given,and the change rate of bandgap with temperature was acquired by fitting.
%K Si/Ge quantum wells
%K Photocurrent absorption spectra
%K Band-to-band absorption edge
%K External electric field<br>锗硅量子阱
%K 光电流谱
%K 带间吸收边
%K 外加电场
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=CA7588C0BAEFD645&yid=37904DC365DD7266&vid=6209D9E8050195F5&iid=708DD6B15D2464E8&sid=937C5AD88B71B15A&eid=0C0A5470C59ABA43&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=14