Abstract
Initiated chemical vapor deposition (iCVD) is used to integrate poly(1-vinylimidazole) (PVIZ) into the mesoporous photoanode of dye sensitized solar cells (DSSCs). To our knowledge, this is the first reported demonstration of PVIZ via iCVD as a novel polymer electrolyte in DSSCs. Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) verified the iCVD polymer as stoichiometric PVIZ. Polymer deposition rate was found to increase with increasing reactor pressure and decreasing substrate temperature. The kinetic studies further determined that the surface polymerization reaction is first order with respect to the surface monomer concentration. The power conversion efficiency of DSSCs incorporating crosslinked PVIZ was found to be 27% higher than that of liquid electrolyte DSSCs as a result of higher open circuit voltage and short circuit current.
| Original language | American English |
|---|---|
| Pages (from-to) | 136-142 |
| Number of pages | 7 |
| Journal | Chemical Engineering Science |
| Volume | 154 |
| DOIs | |
| State | Published - Nov 2 2016 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Industrial and Manufacturing Engineering
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