1,240 research outputs found

    Irradiation-induced molecular dipole reorientation in inverted polymer solar cell using small molecular electron collection layer

    Full text link
    Inverted polymer solar cell is developed using small molecular tris(8-hydroxyquinolinato) aluminum (Alq3) as an electron collection layer between the active layer and indium-tin-oxide bottom cathode. Upon post-processing light irradiation by simulated solar illumination, the open-circuit voltage of the inverted device increases from 0.52 V to 0.60 V, resulting in the enhancement of the power conversion efficiency from 2.54 to 3.33 with negligible change in the short-circuit current. The performance improvement is attributed to the removal of surface potential due to irradiation-induced molecular dipole reorientation in the Alq3 layer, which reduces the charge transport barrier and improves the charge collection efficiency. © 2011 American Institute of Physics

    地心坐标系与站心坐标系中的速度转换及误差传播

    Get PDF
    Author name used in this publication: 伍吉仓Author name used in this publication: 邓康伟, Conrad TangAuthor name used in this publication: 陈永奇, Chen YongqiTitle in Traditional Chinese: 地心坐標系與站心坐標系中的速度轉換及誤差傳播Journal title in Traditional Chinese: 大地測量與地球動力學2005-2006 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    用边长变化结果计算地应变及块体划分

    Get PDF
    Author name used in this publication: 伍吉仓Author name used in this publication: 邓康伟, Conrad TangAuthor name used in this publication: 陈永奇, Chen YongqiTitle in Traditional Chinese: 用邊長變化結果計算地應變及塊體劃分Journal title in Traditional Chinese: 大地測量與地球動力學2002-2003 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    三角形形状因子对地壳形变计算精度的影响

    Get PDF
    Author name used in this publication: 伍吉仓Author name used in this publication: 邓康伟, Conrad TangAuthor name used in this publication: 陈永奇, Chen YongqiTitle in Traditional Chinese: 三角形形狀因數對地殼形變計算精度的影響Journal title in Traditional Chinese: 大地測量與地球動力學2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Efficient inverted polymer solar cells with thermal-evaporated and solution-processed small molecular electron extraction layer

    Full text link
    Efficient inverted polymer solar cell is reported upon by integrating with a small molecular 1,3,5-tri(phenyl-2-benzimi-dazolyl)-benzene (TPBi) electron extraction layer (EEL) at low processing temperature with thermal-evaporation and solution-process, resulting in the power conversion efficiencies of 3.70 and 3.47, respectively. The potential of TPBi as an efficient EEL is associated with its suitable electronic energy level for electron extraction and hole blocking from the active layer to the indium tin oxide cathode. © 2013 American Institute of Physics

    Enhanced performance in polymer photovoltaic cells with chloroform treated indium tin oxide anode modification

    Full text link
    Enhanced performance of a poly(3-hexylthiophene):(6,6)-phenyl C61 butyric acid methyl ester bulk heterojunction polymer photovoltaic cell is reported by modifying the indium tin oxide (ITO) anode with chloroform solution. Instead of the traditional UV-ozone treatment, the optimized chloroform modification on ITO anode can result in an enhancement in the power conversion efficiency of an identical device, originating from an increase in the photocurrent with negligible change in the open-circuit voltage. The performance enhancement is attributed to the work function modification of the ITO substrate through the surface incorporation of the chlorine, and thus improved charge collection efficiency. © 2011 American Institute of Physics

    Inversion of GPS measurements for a layer of negative dislocation distribution in north China

    Get PDF
    Author name used in this publication: Wu, J. C.Author name used in this publication: Tang, H. W.Author name used in this publication: Chen, Y. Q.2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Surface plasmon-enhanced electroluminescence in organic light-emitting diodes incorporating Au nanoparticles

    Full text link
    Surface plasmon-enhanced electroluminescence (EL) in an organic light-emitting diode is demonstrated by incorporating the synthesized Au nanoparticles (NPs) in the hole injection layer of poly(3,4-ethylene dioxythiophene):polystyrene sulfonic acid. An increase of ∼25% in the EL intensity and efficiency are achieved for devices with Au NPs, whereas the spectral and electrical properties remain almost identical to the control device. Time-resolved photoluminescence spectroscopy reveals that the EL enhancement is ascribed to the increase in spontaneous emission rate due to the plasmonic near-field effect induced by Au NPs. © 2012 American Institute of Physics

    结合遗传算法的LVQ神经网络在声学底质分类中的应用

    Get PDF
    Author name used in this publication: 唐秋华Author name used in this publication: 刘保华Author name used in this publication:Author name used in this publication: 陈永奇Author name used in this publication: 周兴华Author name used in this publication: 丁继胜Title in Traditional Chinese: 結合遺傳算法的LVQ神經網絡在聲學底質分類中的應用Journal title in Traditional Chinese: 地球物理學報2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    基于自组织神经网络的声学底质分类研究

    Get PDF
    Author name used in this publication: 唐秋华Author name used in this publication: 刘保华Author name used in this publication: 陈永奇Author name used in this publication: 周兴华Author name used in this publication: 丁继胜Title in Traditional Chinese: 基于自組織神經網絡的聲學底質分類研究Journal title in Traditional Chinese: 聲學技術2007-2008 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
    corecore