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Preparation,Characterization and Electronic Properties of Fluorine-doped Tin Oxide Films
【文件类型】 【消费金额】1.2 【文章页数】4 【会员操作】  
【文章作者】Velázquez-Nevárez G A;Vargas-García J R;Lartundo-Rojas L;CHEN Fei;SHEN Qiang;ZHANG Lianmeng;
【文章摘要】      Tin oxide(SnO_2) and fluorine doped tin oxide(FTO) films were prepared on glass substrates by sol-gel spin-coating using SnCl_4 and NH_4F precursors.Fluorine doping concentration was fixed at 4 at%and 20 at%by controlling precursor sol composition.Films exhibited the tetragonal rutile-type crystal structure regardless of fluorine concentration.Uniform and highly transparent FTO films,with more than 85%of optical transmittance,were obtained by annealing at 600℃.Florine doping of films was verified by analyzing the valence band region obtained by XPS.It was found that the fluorine doping affects the shape of valence band of SnO_2 films.In addition,it was observed that the band gap of SnO_2 is reduced as well as the Fermi level is upward shifted by the effect of fluorine doping.
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【期刊】【卷】【ISSUE】【ISSUEID】    【文章期份】2016    【发布日期】2016/3/15 0:00:00    点击率:1    打印    关闭
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