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MXene-Contacted Silicon Solar Cells with 11.5% Efficiency

机译：MXENE接触的硅太阳能电池，效率为11.5％

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摘要

MXene, a new class of 2D materials, has gained significant attention owing to its attractive electrical conductivity, tunable work function, and metallic nature for wide range of applications. Herein, delaminated few layered Ti3C2Tx MXene contacted Si solar cells with a maximum power conversion efficiency (PCE) of approximate to 11.5% under AM1.5G illumination are demonstrated. The formation of an Ohmic junction of the metallic MXene to n(+)-Si surface efficiently extracts the photogenerated electrons from n(+)np(+)-Si, decreases the contact resistance, and suppresses the charge carrier recombination, giving rise to excellent open-circuit voltage and short-circuit current density. The rapid thermal annealing process further improves the electrical contact between Ti3C2Tx MXene and n(+)-Si surface by reducing sheet resistance, increasing electrical conductivity, and decreasing cell series resistance, thus leading to a remarkable improvement in fill factor and overall PCE. The work demonstrated here can be extended to other MXene compositions as potential electrodes for developing highly performing solar cells.
机译：MXEN是一类新的2D材料，由于其具有吸引力，可调谐的功函数和广泛应用的金属性质而获得了重大关注。在此，分层少数层状Ti3C2TX MXENE接触了在AM1.5G照射下的最大功率转换效率（PCE）的最大功率转换效率（PCE）。金属mxEne对N（+） - Si表面的欧姆结的形成有效地提取了来自N（+）NP（+） - Si的光生电子，降低了接触电阻，并抑制了电荷载体重组，产生优异的开路电压和短路电流密度。快速热退火过程通过降低薄层电阻，增加电导率和降低的细胞串联电阻，进一步改善了Ti3C2TX MxENE和N（+） - Si表面之间的电接触，从而导致填充因子和整体PCE的显着改善。这里证明的工作可以扩展到其他MxENE组合物作为用于显影高度性能的太阳能电池的潜在电极。

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  • 来源
    《Advanced energy materials》 |2019年第22期|1900180.1-1900180.9|共9页
  • 作者

    Fu Hui-Chun; Ramalingam Vinoth; Kim Hyunho; Lin Chun-Ho; Fang Xiaosheng; Alshareef Husam N.; He Jr-Hau;

  • 作者单位

    King Abdullah Univ Sci & Technol Comp Elect & Math Sci & Engn Thuwal 239556900 Saudi Arabia;

    King Abdullah Univ Sci & Technol Comp Elect & Math Sci & Engn Thuwal 239556900 Saudi Arabia;

    King Abdullah Univ Sci & Technol Mat Sci & Engn Phys Sci & Engn Div Thuwal 239556900 Saudi Arabia;

    King Abdullah Univ Sci & Technol Comp Elect & Math Sci & Engn Thuwal 239556900 Saudi Arabia;

    Fudan Univ Dept Mat Sci Shanghai 200433 Peoples R China;

    King Abdullah Univ Sci & Technol Mat Sci & Engn Phys Sci & Engn Div Thuwal 239556900 Saudi Arabia;

    King Abdullah Univ Sci & Technol Comp Elect & Math Sci & Engn Thuwal 239556900 Saudi Arabia;

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

    2D materials; electrodes; metal contact; MXene; solar cells;

    机译：2D材料;电极;金属接触;MXENE;太阳能电池;

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