Synthesis and integration of poly(1-vinylimidazole) polymer electrolyte in dye sensitized solar cells by initiated chemical vapor deposition
By Kuba, Austin G.; Smolin, Yuriy Y.; Soroush, Masoud; Lau, Kenneth K. S.
Published in Chemical Engineering Science
NULL
2016
Abstract
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.
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