%0 Journal Article
%T PHOTOREFLECTANCE SPECTRA FOR CONDUCTING POLYMER P3MT<br>导电聚合物P3MT的光调制反射谱
%A YUAN REN-KUAN
%A SHEN XUE-CHU
%A M TOMKIEWICZ
%A D S GINLEY
%A <br>袁仁宽
%A 沈学础
%A M. TOMKIEWICZ
%A D. S. GINLEY
%J 物理学报
%D 1987
%I 
%X We report here the photoreflectance spectra of the conducting polymer. The interband transition and the transition associated with bipolaron have been observed for the poly (3-mythyl thiophene)-P3MT with different doping densities and under different temperatures, different intensities of modulation light. It was also demonstrated experimentally that the bipolaron may be induced by light with photon energy larger than the band gap Eg of the material, the bipolaron is the intrinsic elementary excitation state which is independent on the way of inducement ( photoinduced or doping-induced); bipolaron may be pinned by ionized impurity and then the confinement parameter will be increased.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=1C83920A971C0C1374DDAA93E93C5FBE&yid=9C2DB0A0D5ABE6F8&vid=933658645952ED9F&iid=9CF7A0430CBB2DFD&sid=ADA74056AD01F4A8&eid=C4690645D4CCDCE7&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0