节点文献
Influence of Different Surface Modifications on the Photovoltaic Performance and Dark Current of Dye-Sensitized Solar Cells
【摘要】 <正> The TiO2 nanoporous film photoelectrode,as a crucial component of dye-sensitizedsolar cells,has been investigated.The photovoltaic properties and the dark current were studiedby two surface modification methods.One was to apply a compact layer between the conductiveglass substrate and nanoporous TiO2 film.Another was to produce TiO2 nanoparticles amongthe microstructure by TICl4 treatment.A suitable concentration and number of times for TiCl4treatment were found in our experiment.The dark current is suppressed by surface modifications,leading to a significant improvement in the solar cells performance.An excessive concentrationof TICl4 will produce more surface states and introduce a larger dark current reversely.The dyeis also regarded as a source of charge recombination in dark to some extent,due to an amountof surface protonations introduced by the interfacial link in the conductive glass substrate/dyeinterface and dye/TiO2 interface.
【Abstract】 The TiO2 nanoporous film photoelectrode,as a crucial component of dye-sensitized solar cells,has been investigated.The photovoltaic properties and the dark current were studied by two surface modification methods.One was to apply a compact layer between the conductive glass substrate and nanoporous TiO2 film.Another was to produce TiO2 nanoparticles among the microstructure by TICl4 treatment.A suitable concentration and number of times for TiCl4 treatment were found in our experiment.The dark current is suppressed by surface modifications, leading to a significant improvement in the solar cells performance.An excessive concentration of TICl4 will produce more surface states and introduce a larger dark current reversely.The dye is also regarded as a source of charge recombination in dark to some extent,due to an amount of surface protonations introduced by the interfacial link in the conductive glass substrate/dye interface and dye/TiO2 interface.
【Key words】 surface modification; dark current; dye-sensitized; solar cells;
- 【文献出处】 Plasma Science and Technology ,等离子体科学和技术(英文版) , 编辑部邮箱 ,2007年05期
- 【分类号】O439
- 【被引频次】2