%0 Journal Article
%T ANALYSIS OF CHARGE CARRIERS IN BIOELECTRETS<br>生物驻极体载流子特性分析
%A Wu Zonghan Xie Xishun Chang Wunyi
%A <br>吴宗汉
%A 解希顺
%A 张文一
%A 朱亚非
%A 徐福东
%J 生物物理学报
%D 1993
%I 
%X In this paper, the properties of charge carriers in pig bone, a kind of bioelectrets, is analyzed.The results showed that conduction carriers in animal bones came mainly from water molecules bound in gelatin fibers and basal cells in general. The Hall coefficient measured by Van der Pauws method showed to be negative for virgin samples, which have some characteristics of a N- type semiconductor. If the measurement was carried out after the sample was dried under high temperature. the inverse transition of Hall coefficient was observed and the sample showed the conductive property of a P - type semiconductor. The transition is cxpalined as that the lose of water molecules makes the positive ions govern the conductive process. The thermally stimulated depolarizaion current (TSDC) spectrum of short circuit of sample was found to have a negative peak during the transport of water molecules. It was found that the exated energy of a negative charge in pig bone was around 0.86eV.
%K Bioelectrets Hall coefficient TSDC<br>生物驻极体
%K 霍尔系数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=D9DA98A28057BE57784B555603F0A222&yid=D418FDC97F7C2EBA&vid=9CF7A0430CBB2DFD&iid=38B194292C032A66&sid=A94616C4391AA5EF&eid=BE5DBC360CD4FFB9&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=3&reference_num=2