材料科学与工程
材料科學與工程
재료과학여공정
MATERIALS SCIENCE AND ENGINEERING
2001年
1期
30-33,16
,共5页
非晶硅薄膜%硼掺杂%等离子增强化学气相沉积
非晶硅薄膜%硼摻雜%等離子增彊化學氣相沉積
비정규박막%붕참잡%등리자증강화학기상침적
以硅烷(SiH4)和硼烷(B2H6)为气相反应先驱体,采用等离子体增强化学气相沉积法(PECVD)制备出轻掺硼非晶氢硅薄膜。X射线衍射、原子力显微镜和光、暗电导测试表明,一定程度的硼掺杂提高了非晶氢硅薄膜的电导率,降低了非晶氢硅薄膜的光、暗电导比,并促进了非晶氢硅薄膜中硅微晶粒的生长。红外吸收谱研究预示了大量的硼原子与硅、氢原子之间能形成某些形式的复合体,仅有少量硼元素对P型掺杂有贡献。
以硅烷(SiH4)和硼烷(B2H6)為氣相反應先驅體,採用等離子體增彊化學氣相沉積法(PECVD)製備齣輕摻硼非晶氫硅薄膜。X射線衍射、原子力顯微鏡和光、暗電導測試錶明,一定程度的硼摻雜提高瞭非晶氫硅薄膜的電導率,降低瞭非晶氫硅薄膜的光、暗電導比,併促進瞭非晶氫硅薄膜中硅微晶粒的生長。紅外吸收譜研究預示瞭大量的硼原子與硅、氫原子之間能形成某些形式的複閤體,僅有少量硼元素對P型摻雜有貢獻。
이규완(SiH4)화붕완(B2H6)위기상반응선구체,채용등리자체증강화학기상침적법(PECVD)제비출경참붕비정경규박막。X사선연사、원자력현미경화광、암전도측시표명,일정정도적붕참잡제고료비정경규박막적전도솔,강저료비정경규박막적광、암전도비,병촉진료비정경규박막중규미정립적생장。홍외흡수보연구예시료대량적붕원자여규、경원자지간능형성모사형식적복합체,부유소량붕원소대P형참잡유공헌。
Using hydrogen-diluted SiH4 and B2H6 as the precursor gases, boron lightly doped amorphous silicon films were obtaine d by the plasma-enhanced chemical vapor deposition. According to the results fr om X-ray diffraction, Atom Force Microscopy(AFM) and photo/dark photoconductivi ty measurements, lightly doping of boron increases the dark conductivity, decrea ses the photo/dark ratio and enhances the crystallization in amorphous silicon f ilms. Results from FTIR confirm that various kinds of complex were formed among boron, silicon and hydrogen atoms. Only a small amount of boron atom act as acce ptor.