...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion >Surface modification of TiO_2 electrode by various over-layer coatings and O_2 plasma treatment for dye sensitized solar cells
【24h】

Surface modification of TiO_2 electrode by various over-layer coatings and O_2 plasma treatment for dye sensitized solar cells

机译：染料敏化太阳能电池通过各种外涂层和O_2等离子体处理对TiO_2电极的表面改性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The anti-recombination property and the surface area of TiO_2 influence the efficiency of dye-sensitized solar cells (DSSCs). The effects of various over-layers and O_2 plasma treatment on TiO_2 electrodes have been investigated. Over-layers were coated by dip coating in a solution of saturated Ba(NO_3)_2, Mg(NO_3) _2 and N_2O_6Sr, which reduced the recombination of electrons from the photo excited state of Ru dye. O_2 plasma treatment was applied to improve both the contact ability with the dye and the electron takeover capability by reducing oxygen vacancies on both the TiO _2 and the over-layer surface. The photo conversion efficiency of DSSC was improved by both over-layer coating and O_2 plasma treatment. In particular, dipping in saturated Ba(NO_3)_2 solution and O_2 plasma treatment (BP), the photo conversion efficiency was greatly improved from 5.27% to 6.76%. The reason was that the over-layers and O _2 plasma treatment decreased electron recombination. The energy barrier of the modified over-layers blocks the electron transfer from TiO _2 to the electrolyte, and consequently increases electron density by extending the electron lifetime. O_2 plasma treatment also increased the Ru dye absorption.
机译：TiO_2的抗复合性能和表面积影响染料敏化太阳能电池（DSSCs）的效率。研究了各种覆盖层和O_2等离子体处理对TiO_2电极的影响。通过浸涂在饱和Ba（NO_3）_2，Mg（NO_3）_2和N_2O_6Sr的溶液中来涂覆覆盖层，这减少了电子从Ru染料的光激发态重新结合。进行O_2等离子体处理可通过减少TiO_2和顶层表面上的氧空位来改善与染料的接触能力和电子吸收能力。通过覆盖涂层和O_2等离子体处理均提高了DSSC的光转换效率。特别是，浸入饱和Ba（NO_3）_2溶液和O_2等离子体处理（BP）后，光转换效率从5.27％大大提高到了6.76％。原因是覆盖层和O _2等离子体处理降低了电子复合。改性外层的能垒阻止了电子从TiO _2向电解质的转移，因此通过延长电子寿命来增加电子密度。 O_2等离子体处理也增加了Ru染料的吸收。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号