Poly(vinyl chloride)-graft-poly(N-vinyl caprolactam) graft copolymer

Synthesis and use as template for porous TiO 2 thin films in dye-sensitized solar cells

Rajkumar Patel, Sung Hoon Ahn, Won Seok Chi, Jong Hak Kim

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Poly(N-vinyl caprolactam) (PNVCL) side chains were grafted to a poly(vinyl chloride) (PVC) backbone via atom transfer radical polymerization. The synthesized PVC-g-PNVCL graft copolymer was templated for the preparation of porous TiO 2 thin films, which involved a sol-gel reaction and calcination process. The interaction of the carbonyl groups in the PVC-g-PNVCL with the titania was revealed by FT-IR spectroscopy. X-ray diffraction and transmission electron microscopy analysis showed the formation of porous TiO 2 thin films with the anatase phase. A series of porous TiO 2 thin films with different pore sizes and porosities was prepared by varying the solution compositions and were used as photoelectrodes in dye-sensitized solar cells (DSSC) with a polymer electrolyte. The DSSC performed best when using the TiO 2 film with higher porosity, lower interfacial resistance, and longer electron life time. The highest energy conversion efficiency, photovoltage (V oc), photocurrent density (J sc), and fill factor (FF) were 1. 2%, 0. 68 V, 3. 2 mA/cm 2, and 0. 57 at 100 mW/cm 2, respectively, for the quasi-solid state DSSC with a 730-nm-thick TiO 2 film.

Original languageEnglish
Pages (from-to)395-402
Number of pages8
JournalIonics
Volume18
Issue number4
DOIs
Publication statusPublished - 2012 Apr 1

Fingerprint

Caprolactam
Vinyl Chloride
Graft copolymers
Polyvinyl Chloride
Grafts
Polyvinyl chlorides
copolymers
templates
solar cells
dyes
chlorides
porosity
Thin films
synthesis
thin films
Porosity
energy conversion efficiency
Atom transfer radical polymerization
photovoltages
Photocurrents

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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title = "Poly(vinyl chloride)-graft-poly(N-vinyl caprolactam) graft copolymer: Synthesis and use as template for porous TiO 2 thin films in dye-sensitized solar cells",
abstract = "Poly(N-vinyl caprolactam) (PNVCL) side chains were grafted to a poly(vinyl chloride) (PVC) backbone via atom transfer radical polymerization. The synthesized PVC-g-PNVCL graft copolymer was templated for the preparation of porous TiO 2 thin films, which involved a sol-gel reaction and calcination process. The interaction of the carbonyl groups in the PVC-g-PNVCL with the titania was revealed by FT-IR spectroscopy. X-ray diffraction and transmission electron microscopy analysis showed the formation of porous TiO 2 thin films with the anatase phase. A series of porous TiO 2 thin films with different pore sizes and porosities was prepared by varying the solution compositions and were used as photoelectrodes in dye-sensitized solar cells (DSSC) with a polymer electrolyte. The DSSC performed best when using the TiO 2 film with higher porosity, lower interfacial resistance, and longer electron life time. The highest energy conversion efficiency, photovoltage (V oc), photocurrent density (J sc), and fill factor (FF) were 1. 2{\%}, 0. 68 V, 3. 2 mA/cm 2, and 0. 57 at 100 mW/cm 2, respectively, for the quasi-solid state DSSC with a 730-nm-thick TiO 2 film.",
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Poly(vinyl chloride)-graft-poly(N-vinyl caprolactam) graft copolymer : Synthesis and use as template for porous TiO 2 thin films in dye-sensitized solar cells. / Patel, Rajkumar; Ahn, Sung Hoon; Chi, Won Seok; Kim, Jong Hak.

In: Ionics, Vol. 18, No. 4, 01.04.2012, p. 395-402.

Research output: Contribution to journalArticle

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AB - Poly(N-vinyl caprolactam) (PNVCL) side chains were grafted to a poly(vinyl chloride) (PVC) backbone via atom transfer radical polymerization. The synthesized PVC-g-PNVCL graft copolymer was templated for the preparation of porous TiO 2 thin films, which involved a sol-gel reaction and calcination process. The interaction of the carbonyl groups in the PVC-g-PNVCL with the titania was revealed by FT-IR spectroscopy. X-ray diffraction and transmission electron microscopy analysis showed the formation of porous TiO 2 thin films with the anatase phase. A series of porous TiO 2 thin films with different pore sizes and porosities was prepared by varying the solution compositions and were used as photoelectrodes in dye-sensitized solar cells (DSSC) with a polymer electrolyte. The DSSC performed best when using the TiO 2 film with higher porosity, lower interfacial resistance, and longer electron life time. The highest energy conversion efficiency, photovoltage (V oc), photocurrent density (J sc), and fill factor (FF) were 1. 2%, 0. 68 V, 3. 2 mA/cm 2, and 0. 57 at 100 mW/cm 2, respectively, for the quasi-solid state DSSC with a 730-nm-thick TiO 2 film.

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