Effects of polymer chemistry on polymer-electrolyte dye sensitized solar cell performance: A theoretical and experimental investigation

Yuriy Y. Smolin, Siamak Nejati, Mona Bavarian, Daeyeon Lee, Kenneth K.S. Lau, Masoud Soroush

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The effects of polymer chemistry on interfacial properties and overall performance in polymer-electrolyte dye sensitized solar cells (DSSCs) are investigated theoretically and experimentally. Specifically, polymer electrolytes based on poly(2-hydroxyethyl methacrylate) (PHEMA), poly(glycidyl methacrylate) (PGMA), and poly(4-vinylpyridine) (P4VP) are considered. These polymers are grown directly within the mesoporous TiO2 photoanode via a single step polymerization and coating using initiated chemical vapor deposition (iCVD) to maximize pore filling. The experimental study coupled with a 1-D first-principles macroscopic DSSC mathematical model provides insight into the cell interfacial processes and overall performance. Parameter estimation using the macroscopic model indicates that the pendant groups on the polymers strongly affect the conduction band position of TiO2, the back electron transfer at the photoanode-electrolyte interface, and the exchange current density at the platinum cathode. The estimated difference between the TiO2 conduction band edge and the redox potential of the electrolyte are 0.87, 0.99 and 1.06 eV for P4VP, PGMA, and PHEMA, respectively. Estimated recombination rate constants for P4VP and PGMA are respectively 54% and 19% lower than that of PHEMA. This study indicates that by varying polymer electrolyte chemistry, DSSC characteristics including open-circuit voltage, short-circuit current density, and fill factor can be tuned.

Original languageEnglish (US)
Pages (from-to)156-164
Number of pages9
JournalJournal of Power Sources
Volume274
DOIs
StatePublished - Jan 15 2015

Fingerprint

polymer chemistry
Electrolytes
Polymers
solar cells
dyes
electrolytes
Polyhydroxyethyl Methacrylate
polymers
PHEMA
Conduction bands
conduction bands
current density
Current density
short circuit currents
open circuit voltage
Open circuit voltage
Platinum
mathematical models
electron transfer
platinum

Keywords

  • Polymer electrolyte Dye sensitized solar cell Macroscopic modeling First principles Initiated chemical vapor deposition

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Effects of polymer chemistry on polymer-electrolyte dye sensitized solar cell performance : A theoretical and experimental investigation. / Smolin, Yuriy Y.; Nejati, Siamak; Bavarian, Mona; Lee, Daeyeon; Lau, Kenneth K.S.; Soroush, Masoud.

In: Journal of Power Sources, Vol. 274, 15.01.2015, p. 156-164.

Research output: Contribution to journalArticle

Smolin, Yuriy Y. ; Nejati, Siamak ; Bavarian, Mona ; Lee, Daeyeon ; Lau, Kenneth K.S. ; Soroush, Masoud. / Effects of polymer chemistry on polymer-electrolyte dye sensitized solar cell performance : A theoretical and experimental investigation. In: Journal of Power Sources. 2015 ; Vol. 274. pp. 156-164.
@article{3f529316bc7f4d49a2af1ee9204c2843,
title = "Effects of polymer chemistry on polymer-electrolyte dye sensitized solar cell performance: A theoretical and experimental investigation",
abstract = "The effects of polymer chemistry on interfacial properties and overall performance in polymer-electrolyte dye sensitized solar cells (DSSCs) are investigated theoretically and experimentally. Specifically, polymer electrolytes based on poly(2-hydroxyethyl methacrylate) (PHEMA), poly(glycidyl methacrylate) (PGMA), and poly(4-vinylpyridine) (P4VP) are considered. These polymers are grown directly within the mesoporous TiO2 photoanode via a single step polymerization and coating using initiated chemical vapor deposition (iCVD) to maximize pore filling. The experimental study coupled with a 1-D first-principles macroscopic DSSC mathematical model provides insight into the cell interfacial processes and overall performance. Parameter estimation using the macroscopic model indicates that the pendant groups on the polymers strongly affect the conduction band position of TiO2, the back electron transfer at the photoanode-electrolyte interface, and the exchange current density at the platinum cathode. The estimated difference between the TiO2 conduction band edge and the redox potential of the electrolyte are 0.87, 0.99 and 1.06 eV for P4VP, PGMA, and PHEMA, respectively. Estimated recombination rate constants for P4VP and PGMA are respectively 54{\%} and 19{\%} lower than that of PHEMA. This study indicates that by varying polymer electrolyte chemistry, DSSC characteristics including open-circuit voltage, short-circuit current density, and fill factor can be tuned.",
keywords = "Polymer electrolyte Dye sensitized solar cell Macroscopic modeling First principles Initiated chemical vapor deposition",
author = "Smolin, {Yuriy Y.} and Siamak Nejati and Mona Bavarian and Daeyeon Lee and Lau, {Kenneth K.S.} and Masoud Soroush",
year = "2015",
month = "1",
day = "15",
doi = "10.1016/j.jpowsour.2014.10.028",
language = "English (US)",
volume = "274",
pages = "156--164",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

TY - JOUR

T1 - Effects of polymer chemistry on polymer-electrolyte dye sensitized solar cell performance

T2 - A theoretical and experimental investigation

AU - Smolin, Yuriy Y.

AU - Nejati, Siamak

AU - Bavarian, Mona

AU - Lee, Daeyeon

AU - Lau, Kenneth K.S.

AU - Soroush, Masoud

PY - 2015/1/15

Y1 - 2015/1/15

N2 - The effects of polymer chemistry on interfacial properties and overall performance in polymer-electrolyte dye sensitized solar cells (DSSCs) are investigated theoretically and experimentally. Specifically, polymer electrolytes based on poly(2-hydroxyethyl methacrylate) (PHEMA), poly(glycidyl methacrylate) (PGMA), and poly(4-vinylpyridine) (P4VP) are considered. These polymers are grown directly within the mesoporous TiO2 photoanode via a single step polymerization and coating using initiated chemical vapor deposition (iCVD) to maximize pore filling. The experimental study coupled with a 1-D first-principles macroscopic DSSC mathematical model provides insight into the cell interfacial processes and overall performance. Parameter estimation using the macroscopic model indicates that the pendant groups on the polymers strongly affect the conduction band position of TiO2, the back electron transfer at the photoanode-electrolyte interface, and the exchange current density at the platinum cathode. The estimated difference between the TiO2 conduction band edge and the redox potential of the electrolyte are 0.87, 0.99 and 1.06 eV for P4VP, PGMA, and PHEMA, respectively. Estimated recombination rate constants for P4VP and PGMA are respectively 54% and 19% lower than that of PHEMA. This study indicates that by varying polymer electrolyte chemistry, DSSC characteristics including open-circuit voltage, short-circuit current density, and fill factor can be tuned.

AB - The effects of polymer chemistry on interfacial properties and overall performance in polymer-electrolyte dye sensitized solar cells (DSSCs) are investigated theoretically and experimentally. Specifically, polymer electrolytes based on poly(2-hydroxyethyl methacrylate) (PHEMA), poly(glycidyl methacrylate) (PGMA), and poly(4-vinylpyridine) (P4VP) are considered. These polymers are grown directly within the mesoporous TiO2 photoanode via a single step polymerization and coating using initiated chemical vapor deposition (iCVD) to maximize pore filling. The experimental study coupled with a 1-D first-principles macroscopic DSSC mathematical model provides insight into the cell interfacial processes and overall performance. Parameter estimation using the macroscopic model indicates that the pendant groups on the polymers strongly affect the conduction band position of TiO2, the back electron transfer at the photoanode-electrolyte interface, and the exchange current density at the platinum cathode. The estimated difference between the TiO2 conduction band edge and the redox potential of the electrolyte are 0.87, 0.99 and 1.06 eV for P4VP, PGMA, and PHEMA, respectively. Estimated recombination rate constants for P4VP and PGMA are respectively 54% and 19% lower than that of PHEMA. This study indicates that by varying polymer electrolyte chemistry, DSSC characteristics including open-circuit voltage, short-circuit current density, and fill factor can be tuned.

KW - Polymer electrolyte Dye sensitized solar cell Macroscopic modeling First principles Initiated chemical vapor deposition

UR - http://www.scopus.com/inward/record.url?scp=84908340409&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84908340409&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2014.10.028

DO - 10.1016/j.jpowsour.2014.10.028

M3 - Article

AN - SCOPUS:84908340409

VL - 274

SP - 156

EP - 164

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -