The DSSCs properties were measured by Sol2A Oriel New Port Corporation USA, with Keithley-2420 source meter under 1.5 AM illumination. A compact and sealed dye sensitized solar cell (DSSCs) device was fabricated using a standard two-electrode configuration, comprising dye loaded Glass/FTO/P25 (with an active surface area of 0.5 cm2) as photoanode, platinum coated FTO, as a counter electrode which is sealed with the working electrode using a spacer (1 mm) of polyacralamyde. The platinum coated FTO counter electrode, was prepared by dropping a H2PtCl6 solution (0.7 mM) on an FTO glass followed by heating at 400°C for 20 min in air. The dye-adsorbed nanostructured TiO2 electrodes and the Pt counter electrode was sealed with 25 μm-thick Surlyn (SX1170–25, Solaronix) thermoplastic at a pressure of ~210 Kpacm−2 and a temperature of about ~110°C. The Iodolyte AN-50 (Solaronix) electrolyte was inserted through predrilled hole from Pt/FTO counter electrode. Finally device was sealed using thermoplastic. All the measurements were carried out at room temperature in air.
Iodolyte an 50
Manufactured by Solaronix
Iodolyte AN-50 is a liquid electrolyte solution composed of iodide and triiodide ions in acetonitrile. It is designed for use in dye-sensitized solar cells and other electrochemical applications.
Automatically generated - may contain errors
4 protocols using iodolyte an 50
1
Fabrication and Characterization of Dye-Sensitized Solar Cells
2
Dye-Sensitized Solar Cell Fabrication
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All the chemicals were of analytical grade and used without any further purification. Titanium (IV) chloride (99.9%) and D-sorbitol (>98%) were purchased from Sigma Aldrich. Commercial TiO2 paste was also purchased (ENB Korea, 100% anatase, ~20 nm particle-size). The fluorine-doped tin oxide (FTO) substrate (15 Ω, TEC 8, Pilkington glass) was cleaned with soap and successively sonicated in distilled water, acetone, and isopropanol for 20 min, respectively, followed by drying with nitrogen gas flow. N-719 dye (Ruthenium 535-bis TBA) and an electrolyte (Iodolyte AN-50) were purchased from Solaronix.
3
TiO2 Photoanode Fabrication for DSSC
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A TiO2 nanoparticulate paste was prepared by the previously reported recipe and doctor-bladed on a cleaned fluorine-doped tin oxide (FTO) glass (Pilkington, TEC-7, 8 Ω sq−1) [26 (link)]. A semi-dried TiO2 film was prepared by baking on a hot plate at 80 °C for 30 min. After imprinting and transferring the ZnO NRs, the sample was fully sintered at 450 °C for 30 min under air condition. The photoanodes were finalized by immersing into a solution of N719 dye (0.3 mM in ethanol) for 3 h at 80 °C [27 (link)]. The dye-adsorbed photoanode was assembled with a catalytic platinum counter electrode at a gap of 30 μm using a Surlyn film (Dupont), which was filled later with an electrolyte (Solaronix, Iodolyte AN-50).
4
Fabrication of High-Performance DSSCs
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Titanium tetrachloride (TiCl4) (99.98% Spectrochem, India), and Titanium tetraisopropoxide (TTIP) were purchased from Alfa Aesar. Hydrochloric acid (HCl, 35.46%), sulfuric acid (H2SO4, 99.9%),) nitric acid (HNO3, 38%,) and sodium chloride (NaCl) were obtained from Thomas Baker. Absolute ethanol (99.9%) AR-grade was obtained from Changshu Yangyuan Chemicals China. Conducting FTO glass (fluorine-doped SnO2, resistance 15 Ω cm−2, transmittance 90%, Solaronix) was received from Solaronix, Switzerland. Iodolyte AN-50 (Solaronix) redox electrolyte were used in the DSSCs. The sensitizer used in this work is an organic N719 dye (Di-Tetrabutylammonium cis-bis(isothiocyanato)bis(2,2-bipyridyl-4,4′-dicarboxylato)-ruthenium(II), 95% (NMR)) purchased from Dysol.
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