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http://dx.doi.org/10.4150/KPMI.2015.22.6.396

The Preparation of Dye-Sensitized Solar Cell Paste Used the Peroxo Titanium Complex and Characteristics by Annealing Temperature  

Park, Hyunsu (Department of Energy Engineering, Dankook University)
Joo, Soyeong (Department of Energy Engineering, Dankook University)
Choi, Joon-Phil (Korea Institute of Materials Science)
Kim, Woo-Byoung (Department of Energy Engineering, Dankook University)
Publication Information
Journal of Powder Materials / v.22, no.6, 2015 , pp. 396-402 More about this Journal
Abstract
The organic binder-free paste for dye-sensitized solar cell (DSSC) has been investigated using peroxo titanium complex. The crystal structure of $TiO_2$ nanoparticles, morphology of $TiO_2$ film and electrical properties are analyzed by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Electrochemical Impedance Spectra (EIS), and solar simulator. The synthesized $TiO_2$ nanopowders by the peroxo titanium complex at 150, 300, $400^{\circ}C$, and $450^{\circ}C$ have anatase phase and average crystal sizes are calculated to be 4.2, 13.7, 16.9, and 20.9 nm, respectively. The DSSC prepared by the peroxo titanium complex binder have higher $V_{oc}$ and lower $J_{sc}$ values than that of the organic binder. It can be attributed to improvement of sintering properties of $TCO/TiO_2$ and $TiO_2/TiO_2$ interface and to formation of agglomerate by the nanoparticles. As a result, we have investigated the organic binder-free paste and 3.178% conversion efficiency of the DSSC at $450^{\circ}C$.
Keywords
Dye-Sensitized Solar Cell; Low-temperature paste; Titanium complex;
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