Effects of HNO3 treatment of TiO2 nanoparticles on the photovoltaic properties of dye-sensitized solar cells
作者： Kyung-Hee Park , En Mei Jin , Hal Bon Gu , Sang Eun Shim , Chang Kook Hong
DOI: 10.1016/J.MATLET.2009.07.034
关键词: Nanoparticle 、 Short circuit 、 Inorganic chemistry 、 Solar cell 、 Electrolyte 、 Materials science 、 X-ray photoelectron spectroscopy 、 Photocurrent 、 Dye-sensitized solar cell 、 Dispersion (chemistry)
摘要: Abstract The effects of the nitric acid (HNO 3 ) treatment TiO 2 nanoparticles on photovoltaic properties dye-sensitized solar cell (DSSC) were investigated. HNO enhanced dispersion particles, increased surface area and porosity sintered films, relative proportion Ti 3+ state in 2p X-ray photoelectron spectroscopy spectrum, significantly amount adsorbed dye molecules electrode, reduced charge-transfer resistance at /dye/electrolyte interface. short circuit photocurrent density ( I sc was due to resistance. pre-treatment particles improved overall conversion efficiency DSSC by about 14%.
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