Electron Transport Analysis for Improvement of Solid-State Dye-Sensitized Solar Cells Using Poly(3,4-ethylenedioxythiophene) as Hole Conductors
| Autor: | Takayuki Kitamura, Norihiro Fukuri, Shozo Yanagida, Naruhiko Masaki, Yuji Wada |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
chemistry.chemical_classification
Photocurrent Materials science business.industry Iodide Energy conversion efficiency Surfaces Coatings and Films Dielectric spectroscopy chemistry.chemical_compound Dye-sensitized solar cell Light intensity chemistry PEDOT:PSS Materials Chemistry Optoelectronics Physical and Theoretical Chemistry business Poly(3 4-ethylenedioxythiophene) |
| Zdroj: | The Journal of Physical Chemistry B. 110:25251-25258 |
| ISSN: | 1520-5207 1520-6106 |
| DOI: | 10.1021/jp064439a |
| Popis: | Dye-sensitized solar cells (DSCs) using solid-state hole conductor, poly(3,4-ethylenedioxythiophene) (PEDOT), were fabricated using in-situ photoelectrochemical polymerization giving short-circuit photocurrent density of 3.20 mA cm-2, open-circuit voltage of 0.77 V, and fill factor of 0.50, and the resulting overall conversion efficiency of 1.25% on average under air mass 1.5 conditions. Furthermore, the electron transport properties of the DSCs based on PEDOT (PEDOT/DSCs) were analyzed using light intensity modulation induced photocurrent and photovoltage decay (SLIM-PCV) measurements and electrochemical impedance spectroscopy (EIS) measurements, and then compared to those of the DSCs based on organic liquid electrolyte containing I-/I3- as redox couple (liquid iodide/iodine electrolyte-DSCs, iodide/DSCs for short). The effective filling of PEDOT in the mesopores of dyed TiO2 layers is an important key to achieve the respectable conversion efficiency of PEDOT/DSCs that is comparable with iodide/DSCs. |
| Databáze: | OpenAIRE |
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