Formation of mesoporous TiO2 with large surface areas, interconnectivity and hierarchical pores for dye-sensitized solar cells

Jung Tae Park, Joo Hwan Koh, Jin Ah Seo, Jong Hak Kim

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

TiO2 nanoparticles with anatase/rutile mixed phase and <100 nm in size were surface-modified using hydroxyethyl methacrylate (HEMA) and sulfosuccinic acid (SA), which can coordinate to the TiO2 precursor, titanium(iv) isopropoxide (TTIP). The HEMA in TiO2-HEMA nanoparticles underwent a graft/crosslink polymerization to poly(hydroxyethyl methacrylate) (PHEMA), i.e. TiO2-PHEMA. Following the application of a sol-gel process with TTIP, 3-dimensional (3D) nanostructured TiO2 photoelectrodes with interconnectivity, large surface area and bimodal pores were successfully obtained. The energy conversion efficiency of a polymer electrolyte dye-sensitized solar cell (DSSC) fabricated with TiO 2-PHEMA/TTIP photoelectrode reached 3.5% at 100 mW cm-2, which was much higher than those of pristine TiO2 (1.4%), TiO 2/TTIP (1.6%) and TiO2-HEMA/TTIP (2.0%) photoelectrodes. The higher cell performance of TiO2-PHEMA/TTIP is due to enhanced light harvesting, reduced charge recombination and excellent penetration of polymer electrolytes into the TiO2 pores.

Original languageEnglish
Pages (from-to)17872-17880
Number of pages9
JournalJournal of Materials Chemistry
Volume21
Issue number44
DOIs
Publication statusPublished - 2011 Nov 28

Fingerprint

Titanium
Electrolytes
Nanoparticles
Polymers
Energy conversion
Grafts
Titanium dioxide
Sol-gel process
Conversion efficiency
Dye-sensitized solar cells
hydroxyethyl methacrylate
Polymerization
Acids

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

@article{fbadeccb03524210802fbb54ff9aaa27,
title = "Formation of mesoporous TiO2 with large surface areas, interconnectivity and hierarchical pores for dye-sensitized solar cells",
abstract = "TiO2 nanoparticles with anatase/rutile mixed phase and <100 nm in size were surface-modified using hydroxyethyl methacrylate (HEMA) and sulfosuccinic acid (SA), which can coordinate to the TiO2 precursor, titanium(iv) isopropoxide (TTIP). The HEMA in TiO2-HEMA nanoparticles underwent a graft/crosslink polymerization to poly(hydroxyethyl methacrylate) (PHEMA), i.e. TiO2-PHEMA. Following the application of a sol-gel process with TTIP, 3-dimensional (3D) nanostructured TiO2 photoelectrodes with interconnectivity, large surface area and bimodal pores were successfully obtained. The energy conversion efficiency of a polymer electrolyte dye-sensitized solar cell (DSSC) fabricated with TiO 2-PHEMA/TTIP photoelectrode reached 3.5{\%} at 100 mW cm-2, which was much higher than those of pristine TiO2 (1.4{\%}), TiO 2/TTIP (1.6{\%}) and TiO2-HEMA/TTIP (2.0{\%}) photoelectrodes. The higher cell performance of TiO2-PHEMA/TTIP is due to enhanced light harvesting, reduced charge recombination and excellent penetration of polymer electrolytes into the TiO2 pores.",
author = "Park, {Jung Tae} and Koh, {Joo Hwan} and Seo, {Jin Ah} and Kim, {Jong Hak}",
year = "2011",
month = "11",
day = "28",
doi = "10.1039/c1jm10675a",
language = "English",
volume = "21",
pages = "17872--17880",
journal = "Journal of Materials Chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "44",

}

Formation of mesoporous TiO2 with large surface areas, interconnectivity and hierarchical pores for dye-sensitized solar cells. / Park, Jung Tae; Koh, Joo Hwan; Seo, Jin Ah; Kim, Jong Hak.

In: Journal of Materials Chemistry, Vol. 21, No. 44, 28.11.2011, p. 17872-17880.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Formation of mesoporous TiO2 with large surface areas, interconnectivity and hierarchical pores for dye-sensitized solar cells

AU - Park, Jung Tae

AU - Koh, Joo Hwan

AU - Seo, Jin Ah

AU - Kim, Jong Hak

PY - 2011/11/28

Y1 - 2011/11/28

N2 - TiO2 nanoparticles with anatase/rutile mixed phase and <100 nm in size were surface-modified using hydroxyethyl methacrylate (HEMA) and sulfosuccinic acid (SA), which can coordinate to the TiO2 precursor, titanium(iv) isopropoxide (TTIP). The HEMA in TiO2-HEMA nanoparticles underwent a graft/crosslink polymerization to poly(hydroxyethyl methacrylate) (PHEMA), i.e. TiO2-PHEMA. Following the application of a sol-gel process with TTIP, 3-dimensional (3D) nanostructured TiO2 photoelectrodes with interconnectivity, large surface area and bimodal pores were successfully obtained. The energy conversion efficiency of a polymer electrolyte dye-sensitized solar cell (DSSC) fabricated with TiO 2-PHEMA/TTIP photoelectrode reached 3.5% at 100 mW cm-2, which was much higher than those of pristine TiO2 (1.4%), TiO 2/TTIP (1.6%) and TiO2-HEMA/TTIP (2.0%) photoelectrodes. The higher cell performance of TiO2-PHEMA/TTIP is due to enhanced light harvesting, reduced charge recombination and excellent penetration of polymer electrolytes into the TiO2 pores.

AB - TiO2 nanoparticles with anatase/rutile mixed phase and <100 nm in size were surface-modified using hydroxyethyl methacrylate (HEMA) and sulfosuccinic acid (SA), which can coordinate to the TiO2 precursor, titanium(iv) isopropoxide (TTIP). The HEMA in TiO2-HEMA nanoparticles underwent a graft/crosslink polymerization to poly(hydroxyethyl methacrylate) (PHEMA), i.e. TiO2-PHEMA. Following the application of a sol-gel process with TTIP, 3-dimensional (3D) nanostructured TiO2 photoelectrodes with interconnectivity, large surface area and bimodal pores were successfully obtained. The energy conversion efficiency of a polymer electrolyte dye-sensitized solar cell (DSSC) fabricated with TiO 2-PHEMA/TTIP photoelectrode reached 3.5% at 100 mW cm-2, which was much higher than those of pristine TiO2 (1.4%), TiO 2/TTIP (1.6%) and TiO2-HEMA/TTIP (2.0%) photoelectrodes. The higher cell performance of TiO2-PHEMA/TTIP is due to enhanced light harvesting, reduced charge recombination and excellent penetration of polymer electrolytes into the TiO2 pores.

UR - http://www.scopus.com/inward/record.url?scp=80455141688&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80455141688&partnerID=8YFLogxK

U2 - 10.1039/c1jm10675a

DO - 10.1039/c1jm10675a

M3 - Article

AN - SCOPUS:80455141688

VL - 21

SP - 17872

EP - 17880

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

SN - 0959-9428

IS - 44

ER -