Plasmonic Au-nanoparticle-doped TiO2 thin-film layers on silicon for anti-reflection- and photocurrent-enhancement

摘要：

　　In this work we investigate the plasmonic opto-electrical effects of TiO2 layers with embedded Au nanoparticles (TiO2:AuNP) on Si wafer by spectral photoconductivity measurements.In correlation with a decrease in reflectivity we find a photocurrent enhancement in the Si-wafers in the IR region due to the anti-reflective effect of the TiO2:AuNP layers on top.However,plasmonic absorbance at the local surface plasmon resonance (LSPR) leads to a reduction of photocurrent in the spectral region of LSPR due to the small size of the AuNPs.The presence of a part of AuNPs on the Si surface leads to a reduction of lifetime and hence of photocurrent in the Si wafer.

作者: Jan Amaru T?fflinger Rafael Abargues José L.Valdés Juan P.Martínez-Pastor Caspar Leendertz1 Orman Gref Maurizio Roczen Lars Korte Bernd Rech Esteban Pedrueza Raúl García-Calzada Vladimir Chirvony

作者单位: Helmholtz-Zentrum Berlin, Institute for Silicon Photovoltaics, Kekuléstrasse 5, 12489 Berlin, German UMDO(Unidad Asociada al CSIC-IMM), Instituto de Ciencia de los Materiales, Universidad de Valencia,

会议类型: 国际会议

会议名称: The 22nd International Photovoltaic Science and Engineering Conference (第22届国际光伏科学与工程会议)

会议地点: 杭州

会议语种:英文

页码: 1-4

在线出版日期: 2012-11-05（万方平台首次上网日期，不代表论文的发表时间）