| 大粒径TiO2反射层对染料敏化太阳能电池性能改进 |
| Performance Improvement for Dye-Sensitized Solar Cells by Large TiO2 Nano-particles Reflecting Layer |
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| 摘要: 使用大粒径和小粒径两种纳晶TiO2制备双层纳晶薄膜电极，并应用于染料敏化太阳能电池中。用有机碱四甲基氢氧化铵做胶化剂制备的两种大粒径纳晶TiO2(粒径为250 nm和150 nm),用它们分别制备薄膜做为反射层；用小粒径纳晶TiO2(10～ 20 nm)来制备的纳晶多孔薄膜为底层膜，用于吸收大量的染料。研究表明，反射层的加入，大大提高了对光的反射率，改善了光电输出，提高了光电转换效率。 |
| 关键词: 纳晶TiO2 太阳能电池 四甲基氢氧化铵 光电转换效率 |
| 基金项目: |
| Abstract: Double layers of nanocrystalline thin films composed of small and large TiO2 nano-particles were applied to the dye-sensitized solar cells. Reflecting layer is composed of TiO2 large nano-particles with mean grain size of 250 nm or 150 nm prepared using organic alkali tetramethylammonium hydroxide as peptizer. Nano-crystalline TiO2 porous thin film composed of small nanocrystalline(10～20 nm) was used as a substrate layer to absorb large amount of dye molecules. The results show that adding reflecting layer can increase the reflectance of sunlight, improve photoelectric output and the photoelectric conversion efficiency. |
| Keywords: TiO2 nano-particles dye-sensitized solar cells tetramethylammonium hydroxide photoelectric conversion efficiency |
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| 张秀坤,吴季怀,范乐庆,黄妙良,林建明.大粒径TiO2反射层对染料敏化太阳能电池性能改进[J].无机化学学报,2008,24(12):2002-2006. |
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