Effect of Substrates on Dye-Sensitized Solar Cell Performance Using Nanocrystalline TiO2
نویسندگان
چکیده
The effects of conducting glasses on photovoltatic properties of dye-sensitized solar cells using nanocrystalline TiO2 were studied. The ITO substrate showed low ability to withstand heat during the sintering process, leading to an increase in sheet resistance. The heat stability of ITO conducting glass was improved by depositing metal oxide such as ATO, AZO, and SnO2, on ITO layer. The IPCE spectra of thin MP-TiO2 cell were higher than that of thick P25 cell in the region between 400-475 nm but lower than that of thick P25 cell in the red region, because the thickness of MP-TiO2 film was not enough to scatter the light leading to low absorbed spectra in red region. IPCE spectra can be improved by using the cell made from blend MP-TiO2 with P25. The efficiency of the MP-TiO2+P25 cells using ITO/SnO2 conducting substrate remarkably increased comparing with that of the cells using ITO.
منابع مشابه
Electron Transfer in Dye-Sensitized Nanocrystalline TiO2 Solar Cell
The dye-sensitized solar cells (DSSC) have been regarded as one of the most promising new generation solar cells. Tremendous research efforts have been invested to improve the efficiency of solar energy conversion which is generally determined by the light harvesting efficiency, electron injection efficiency and undesirable electron lifetime. In this review, various characteristics of dye-...
متن کاملInfluence of nanostructured TiO2 film thickness on photoelectrode structure and performance of flexible Dye- Sensitized Solar Cells
A commercial Ti-Nanoxide was deposited on In-doped SnO2 (ITO) polymer substrates by tape casting technique with different thicknesses (7, 14 and 36μm) to be used as photoelectrode in flexible dye-sensitized solar cells (DSSCs). Ruthenium dye was adsorbed on each TiO2 film for 24 h. The resulting photoelectrodes were used to form flexible DSSCs in combination with...
متن کاملOptical Studies and Photovoltaic Performance of Nanocrystalline Titanium Dioxide Sensitized with Local Dye
Nanocrystalline titanium (iv) oxide paste has been deposited on Fluorine doped tin oxide glass substrate by the blade method. The deposited film was subjected to thermal treatment to obtain an electrode foe a photo-electrochemical cell. The electrode was sensitized with prophyrin dye which was a local dye extracted from carica papaya leaves. Avaspec 2.1 spectrophotometer was used to obtain the ...
متن کاملEffect of large TiO2 Nanoparticles as Light Scatter in Matrix of Small Nanoparticles to Improve the Efficiency in Dye- Sensitized Solar Cell
In this study, we investigated the effect of using large TiO2 nanoparticles in the matrix of small nanoparticles to improve the performance of dye-sensitized solar cells (DSSCs), as light scatter to increase the light harvesting. The mixed powder was deposited by electrophoretic deposition (EPD) on FTO (F-SnO2 coated glass). It is shown that adding small quantity of larger...
متن کاملFabrication and Investigation of Flexible Dye Sensitized Nanocrystalline Solar Cell Utilizing Natural Sensitizer Operated with Gold Coated Counter Electrode
Flexible Dye-sensitized solar cells were assembled using flexible transparent electrodes as substrates, nanocrystalline TiO2, an electrolyte based on I3/I, dye molecules and a counter electrode. In this study has been employed natural pomegranate juice for sensitization of nanocrystalline TiO2 and gold layer as counter electrode was prepared by sputtering method on conducting substrates polymer...
متن کامل