Journal article
Experimental and theoretical investigation of dye sensitized solar cells integrated with crosslinked poly(vinylpyrrolidone) polymer electrolyte using initiated chemical vapor deposition
Thin solid films, v 635
01 Aug 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Initiated chemical vapor deposition is used to integrate crosslinked poly(vinylpyrrolidone) (PVP) as a polymer electrolyte into the mesoporous TiO2 photoanode of dye sensitized solar cells (DSSCs). By adjusting the fractional saturation ratio of ethylene glycol diacrylate (EGDA) crosslinker to vinylpyrrolidone (VP) monomer, the amount of crosslinker within the crosslinked polymer is controlled directly, and a minimum ratio of 0.2:1 (EGDA to VP) is found to form a robust insoluble crosslinked film. Fineman-Ross copolymer analysis indicates that both VP and EGDA prefer to polymerize with VP rather than with EGDA, likely due to reduced steric hindrance. DSSCs incorporating crosslinked PVP polymer electrolyte are found to have 51% higher power conversion efficiency (37% higher in open circuit voltage and 25% higher in fill factor) compared to DSSCs with liquid electrolytes. First-principles macroscopic mathematical modeling reveals that the polymer electrolyte shifts the conduction band of TiO2 (vs. normal hydrogen electrode) negatively, increases shunt resistance, and affects interfacial processes like back-electron surface recombination in the cell. (C) 2016 Elsevier B.V. All rights reserved.
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Details
- Title
- Experimental and theoretical investigation of dye sensitized solar cells integrated with crosslinked poly(vinylpyrrolidone) polymer electrolyte using initiated chemical vapor deposition
- Creators
- Yuriy Y. Smolin - Drexel UniversitySruthi Janakiraman - Drexel UniversityMasoud Soroush - Drexel UniversityKenneth K. S. Lau - Drexel University
- Publication Details
- Thin solid films, v 635
- Publisher
- Elsevier
- Number of pages
- 8
- Grant note
- CBET-1236180; CBET-0846245 / U.S. National Science Foundation (NSF); National Science Foundation (NSF) 1236180 / Div Of Chem, Bioeng, Env, & Transp Sys; National Science Foundation (NSF); NSF - Directorate for Engineering (ENG)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000404503600003
- Scopus ID
- 2-s2.0-85009357373
- Other Identifier
- 991019168350204721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Coatings & Films
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter