Stability of the SnO2/MgO dye-sensitized photoelectrochemical solar cell
Stability of the SnO2/MgO dye-sensitized photoelectrochemical solar cell
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DOI：
10.1016/j.solmat.2006.11.008
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发表时间：
2007-03
影响因子：
6.9
通讯作者：
M. Senevirathna;P. Pitigala;E. Premalal;K. Tennakone;G. Kumara;A. Konno
中科院分区：
文献类型：
--
作者：
M. Senevirathna;P. Pitigala;E. Premalal;K. Tennakone;G. Kumara;A. Konno
染料敏化太阳能电池的二氧化钛作为一种廉价的替代传统的光伏电池被广泛研究。另一种常见的适合染料敏化的具有类似带隙的稳定氧化物材料是SnO 2。尽管仅基于SnO 2的电池易于发生严重的复合损失，但由SnO 2/MgO膜制成的电池（其中SnO 2微晶表面覆盖有MgO的超薄壳）提供了相当高的效率。结果表明，SnO 2/MgO电池的抗染料和电解质降解性能优于TiO 2电池。此外，超薄的MgO对SnO 2的屏障在电池的长期使用或储存期间保持完整。
Dye-sensitized solar cells made of TiO2are extensively studied as a cheap alternative to conventional photovoltaic cells. The other familiar stable oxide material of similar band gap suitable for dye sensitization is SnO2. Although cells based only of SnO2are prone to severe recombination losses, the cells made of SnO2/MgO films where the SnO2crystallite is surface covered with an ultra-thin shell of MgO, deliver reasonably high efficiencies. It is found that SnO2/MgO cells resist dye and electrolyte degradation better than TiO2cells. Furthermore, the ultra-thin barrier of MgO on SnO2remains intact during prolonged usage or storage of the cell.