Composite electrolytes of polyethylene glycol methyl ether and TiO 2 for dye-sensitized solar cells - Effect of heat treatment

M. Shaheer Akhtar; Jung Guen Park; Ui Yeon Kim; O. Bong Yang

doi:10.1016/j.matchemphys.2011.02.038

Composite electrolytes of polyethylene glycol methyl ether and TiO ₂ for dye-sensitized solar cells - Effect of heat treatment

M. Shaheer Akhtar
, Jung Guen Park
, Ui Yeon Kim
, O. Bong Yang^*

^*Corresponding author for this work

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

6 Scopus citations

Abstract

For solid-state dye-sensitized solar cells (DSSCs), a composite electrolyte of polyethylene glycol methyl ether (PEGME) and titania (TiO₂) nanoparticles was prepared and characterized by Fourier transform-infra red (FT-IR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectroscopy. The heat treatment on PEGME and TiO₂ composite was found to be an essential step to improve morphology, amorphicity and ionic conductivity of PEGME-TiO₂ composite electrolytes. It was attributed to the increased bond strength of OC-O-Ti between PEGME and TiO ₂ and increased surface roughness of composite materials, which may help to absorb a large amount of iodide couple and effective generation of I₃^- ions. A DSSC fabricated with heat treated PEGME-TiO₂ composite electrolyte showed significantly enhanced overall conversion efficiency of 3.1%, which was 20% higher than that of the DSSC fabricated with bare PEGME-TiO₂ composite electrolyte.

Original language	English
Pages (from-to)	479-483
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	127
Issue number	3
DOIs	https://doi.org/10.1016/j.matchemphys.2011.02.038
State	Published - 2011.06.15

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Atomic force microscopy (AFM)
Composite electrolyte
Heat treatment
Polymer

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Physics & Astronomy

Access to Document

10.1016/j.matchemphys.2011.02.038

Cite this

@article{fedca9a6143d4d72bf57fb54be53f76a,

title = "Composite electrolytes of polyethylene glycol methyl ether and TiO 2 for dye-sensitized solar cells - Effect of heat treatment",

abstract = "For solid-state dye-sensitized solar cells (DSSCs), a composite electrolyte of polyethylene glycol methyl ether (PEGME) and titania (TiO2) nanoparticles was prepared and characterized by Fourier transform-infra red (FT-IR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectroscopy. The heat treatment on PEGME and TiO2 composite was found to be an essential step to improve morphology, amorphicity and ionic conductivity of PEGME-TiO2 composite electrolytes. It was attributed to the increased bond strength of OC-O-Ti between PEGME and TiO 2 and increased surface roughness of composite materials, which may help to absorb a large amount of iodide couple and effective generation of I3- ions. A DSSC fabricated with heat treated PEGME-TiO2 composite electrolyte showed significantly enhanced overall conversion efficiency of 3.1\%, which was 20\% higher than that of the DSSC fabricated with bare PEGME-TiO2 composite electrolyte.",

keywords = "Atomic force microscopy (AFM), Composite electrolyte, Heat treatment, Polymer",

author = "Akhtar, \{M. Shaheer\} and Park, \{Jung Guen\} and Kim, \{Ui Yeon\} and Yang, \{O. Bong\}",

year = "2011",

month = jun,

day = "15",

doi = "10.1016/j.matchemphys.2011.02.038",

language = "English",

volume = "127",

pages = "479--483",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

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}

TY - JOUR

T1 - Composite electrolytes of polyethylene glycol methyl ether and TiO 2 for dye-sensitized solar cells - Effect of heat treatment

AU - Akhtar, M. Shaheer

AU - Park, Jung Guen

AU - Kim, Ui Yeon

AU - Yang, O. Bong

PY - 2011/6/15

Y1 - 2011/6/15

N2 - For solid-state dye-sensitized solar cells (DSSCs), a composite electrolyte of polyethylene glycol methyl ether (PEGME) and titania (TiO2) nanoparticles was prepared and characterized by Fourier transform-infra red (FT-IR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectroscopy. The heat treatment on PEGME and TiO2 composite was found to be an essential step to improve morphology, amorphicity and ionic conductivity of PEGME-TiO2 composite electrolytes. It was attributed to the increased bond strength of OC-O-Ti between PEGME and TiO 2 and increased surface roughness of composite materials, which may help to absorb a large amount of iodide couple and effective generation of I3- ions. A DSSC fabricated with heat treated PEGME-TiO2 composite electrolyte showed significantly enhanced overall conversion efficiency of 3.1%, which was 20% higher than that of the DSSC fabricated with bare PEGME-TiO2 composite electrolyte.

AB - For solid-state dye-sensitized solar cells (DSSCs), a composite electrolyte of polyethylene glycol methyl ether (PEGME) and titania (TiO2) nanoparticles was prepared and characterized by Fourier transform-infra red (FT-IR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectroscopy. The heat treatment on PEGME and TiO2 composite was found to be an essential step to improve morphology, amorphicity and ionic conductivity of PEGME-TiO2 composite electrolytes. It was attributed to the increased bond strength of OC-O-Ti between PEGME and TiO 2 and increased surface roughness of composite materials, which may help to absorb a large amount of iodide couple and effective generation of I3- ions. A DSSC fabricated with heat treated PEGME-TiO2 composite electrolyte showed significantly enhanced overall conversion efficiency of 3.1%, which was 20% higher than that of the DSSC fabricated with bare PEGME-TiO2 composite electrolyte.

KW - Atomic force microscopy (AFM)

KW - Composite electrolyte

KW - Heat treatment

KW - Polymer

UR - https://www.scopus.com/pages/publications/79954418316

U2 - 10.1016/j.matchemphys.2011.02.038

DO - 10.1016/j.matchemphys.2011.02.038

M3 - Journal article

AN - SCOPUS:79954418316

SN - 0254-0584

VL - 127

SP - 479

EP - 483

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 3

ER -