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Three-Dimensional Nanoarchitectured Transparent Conducting Oxides: Synthesis, Characterization and Photovoltaic Applications

机译：三维纳米结构的透明导电氧化物：合成，表征和光伏应用

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摘要

The photovoltaic materials in solar cells take multiple tasks including absorbing lights, separating the light-induced electron-hole pairs, and consequently transport charges to the corresponding metallic electrodes. These tasks, however, are often mutually conflicting. In particular, a thick PV layer is desired to absorb enough light for creating sufficient light-induced charges, while a thin PV layer is also desired to shorten the charge transport path length insider the PV layer in order to suppress recombination. Using dye-sensitized solar cells as an exploratory platform, this dilemma is mitigated using a non-traditional 3-dimensional (3-D) highly doped fluorinated SnO_2 (FTO, core)-TiO_2(shell) nanostructured photoanodes. The FTO core serves as conductive core for low-resistance and drift-assisted electron extraction. The thin, conformal and low-doped TiO_2 shell layer is coated by atomic layer deposition, which provides a large area for anchoring dyes and maintains a large resistance against recombination.
机译：太阳能电池中的光伏材料承担多项任务，包括吸收光，分离光感应的电子-空穴对，并因此将电荷传输到相应的金属电极。但是，这些任务通常相互冲突。特别地，期望厚的PV层吸收足够的光以产生足够的光感生电荷，而期望薄的PV层以缩短PV层内部的电荷传输路径长度，从而抑制复合。使用染料敏化太阳能电池作为探索平台，使用非传统的3维（3-D）高掺杂氟化SnO_2（FTO，核心）-TiO_2（壳）纳米结构光阳极可以缓解这一难题。 FTO芯用作低电阻和漂移辅助电子提取的导电芯。薄的，保形的和低掺杂的TiO_2壳层通过原子层沉积涂覆，这为锚定染料提供了较大的面积，并保持了较大的抗复合性。

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  • 会议地点 San Francisco CA(US)
  • 作者

    Zhenzhen Yang; Tao Xu;

  • 作者单位

    Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA;

    Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA;

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  • 正文语种 eng
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