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首页> 外文期刊>Advanced energy materials >A Low Resistance Calcium/Reduced Titania Passivated Contact for High Efficiency Crystalline Silicon Solar Cells
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A Low Resistance Calcium/Reduced Titania Passivated Contact for High Efficiency Crystalline Silicon Solar Cells

机译：用于高效结晶硅太阳能电池的低电阻钙/还原二氧化钛钝化触点

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摘要

Recent advances in the efficiency of crystalline silicon (c-Si) solar cells have come through the implementation of passivated contacts that simultaneously reduce recombination and resistive losses within the contact structure. In this contribution, low resistivity passivated contacts are demonstrated based on reduced titania (TiOx) contacted with the low work function metal, calcium (Ca). By using Ca as the overlying metal in the contact structure we are able to achieve a reduction in the contact resistivity of TiOx passivated contacts of up to two orders of magnitude compared to previously reported data on Al/TiOx contacts, allowing for the application of the Ca/TiOx contact to n-type c-Si solar cells with partial rear contacts. Implementing this contact structure on the cell level results in a power conversion efficiency of 21.8% where the Ca/TiOx contact comprises only approximate to 6% of the rear surface of the solar cell, an increase of 1.5% absolute compared to a similar device fabricated without the TiOx interlayer.
机译：晶体硅（c-Si）太阳能电池效率的最新进步是通过钝化接触的实现而实现的，该钝化接触同时减少了接触结构内的复合和电阻损耗。在这一贡献中，基于与低功函数金属钙（Ca）接触的还原二氧化钛（TiOx），证明了低电阻钝化接触。与以前报道的有关Al / TiOx触点的数据相比，通过使用Ca作为接触结构中的上覆金属，我们能够使TiOx钝化触点的接触电阻降低多达两个数量级，从而可以实现Ca / TiOx通过部分后触点与n型c-Si太阳能电池接触。在电池级实现这种接触结构可导致21.8％的功率转换效率，其中Ca / TiOx接触仅占太阳能电池后表面的6％，与制造的类似器件相比，绝对值增加1.5％没有TiOx夹层

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  • 来源
    《Advanced energy materials》 |2017年第12期|1602606.1-1602606.7|共7页
  • 作者

    Allen Thomas G.; Bullock James; Jeangros Quentin; Samundsett Christian; Wan Yimao; Cui Jie; Hessler-Wyser Aicha; De Wolf Stefaan; Javey Ali; Cuevas Andres;

  • 作者单位

    Australian Natl Univ, Res Sch Engn, Canberra, ACT 0200, Australia;

    Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA|Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA;

    Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland|Ecole Polytech Fed Lausanne, Inst Micro Engn, Photovolta & Thin Film Elect Lab, Maladiere 71b, CH-200 Neuchatel, Switzerland;

    Australian Natl Univ, Res Sch Engn, Canberra, ACT 0200, Australia;

    Australian Natl Univ, Res Sch Engn, Canberra, ACT 0200, Australia;

    Australian Natl Univ, Res Sch Engn, Canberra, ACT 0200, Australia;

    Ecole Polytech Fed Lausanne, Inst Micro Engn, Photovolta & Thin Film Elect Lab, Maladiere 71b, CH-200 Neuchatel, Switzerland;

    King Abdullah Univ Sci & Technol, KSC, Thuwal 239556900, Saudi Arabia;

    Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA|Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA;

    Australian Natl Univ, Res Sch Engn, Canberra, ACT 0200, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    calcium; passivated contacts; PERC; solar cells; TiO2;

    机译：钙;钝化接触;PERC;太阳能电池;TiO2;

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