Three-dimensional ordered macro/mesoporous TiO<sub>2</sub> inverse opal electrode with enhanced dye-sensitized solar cells' efficiency

QIN Fangli; YUAN Yao; AI Guanya; WANG Aijun; ZHANG Hongyu

doi:10.11949/j.issn.0438-1157.20170065

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Three-dimensional ordered macro/mesoporous TiO₂ inverse opal electrode with enhanced dye-sensitized solar cells' efficiency

更新时间：2025-12-10

- Three-dimensional ordered macro/mesoporous TiO₂ inverse opal electrode with enhanced dye-sensitized solar cells' efficiency
- CIESC Journal Issue 7, Pages: 2925-2930(2017)
- 作者机构：
  
  1. 中国石油大学(北京)理学院,北京,102249
  2. 油气光学探测技术北京市重点实验室,北京,102249
  3. 中国石油和化工行业联合会油气太赫兹波谱与光电检测重点实验室,北京,100723
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170065
  CLC： Q134.1
- Online First：05 July 2017，
  
  Published：05 July 2017
- 稿件说明：
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QIN Fangli, YUAN Yao, AI Guanya, et al. Three-dimensional ordered macro/mesoporous TiO₂ inverse opal electrode with enhanced dye-sensitized solar cells' efficiency[J]. CIESC Journal, 2017, (7): 2925-2930. DOI: 10.11949/j.issn.0438-1157.20170065.
DOI：

QIN Fangli, YUAN Yao, AI Guanya, et al. Three-dimensional ordered macro/mesoporous TiO₂ inverse opal electrode with enhanced dye-sensitized solar cells' efficiency[J]. CIESC Journal, 2017, (7): 2925-2930. DOI: 10.11949/j.issn.0438-1157.20170065. DOI：

摘要

通过添加不同含量的造孔剂聚乙二醇2000（PEG2000），在二氧化钛反蛋白石结构（TiO2反opal）光阳极骨架结构中引入介孔结构，制备出了三维有序大/介孔TiO2反opal光阳极。用SEM和TEM表征了该光阳极的表面形貌，应用紫外可见光谱表征了其染料吸附-脱附性能，测试了基于该光阳极结构的染料敏化太阳能电池的光电转换特性和阻抗特性。结果表明，介孔结构的引入使TiO2反opal光阳极染料吸附能力增强，组装为染料敏化太阳能电池（DSSCs）后光电转换效率提高，电池交流阻抗降低。同时，随着PEG2000含量的增加，光电转换性能呈现先增加后减小的趋势，这可能来源于过量的PEG2000可造成宏孔骨架结构的破坏。

Abstract

Three dimensional(3D) ordered macro/mesoporous titanium dioxide inverse opal (TiO2-IO) electrodes were fabricated via a sol-gel method with polyethylene glycol(PEG2000) treatment. The effects of PEG2000- treatment on the formation of TiO2-IO

the photovoltaic parameters and dye sensitized solar cells (DSSCs) efficiency were investigated. Macroporous templates with oval structures were prepared by using the self-assembly of monodispersed polystyrene (PS) microspheres. Titanium alkoxide precursors containing PEG2000 (as the mesopore directing agent) were infiltrated into the macroporous templates. 3D ordered macro/mesoporous TiO2-IO films were obtained after removing the PS and PEG2000 by calcinations. This kind of 3D macro/mesoporous electrode results in a better dye absorbtivity and enhanced DSSC efficiency. The experiments demonstrate that this enhanced efficiency not only results from active sites to adsorb dye

but also may lie in the decreased characteristic impedances of the DSSCs

which is attributed to the introduction of the mesopores in the TiO2-IO electrode. However

an excessive quantity of PEG2000 results in a drop of photoelectric conversion efficiency because of the damage of the macroporous structure with excessive PEG-treatment.

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Three-dimensional ordered macro/mesoporous TiO2 inverse opal electrode with enhanced dye-sensitized solar cells' efficiency

DOI：10.11949/j.issn.0438-1157.20170065

摘要

Abstract

关键词

Keywords

references

Three-dimensional ordered macro/mesoporous TiO₂ inverse opal electrode with enhanced dye-sensitized solar cells' efficiency