Graphene-titania films by supersonic kinetic spraying for enhanced performance of dye-sensitized solar cells

Do Yeon Kim; Bhavana N. Joshi; Jung Jae Park; Jong Gun Lee; You Hong Cha; Tae Yeon Seong; Suk In Noh; Hyo Jin Ahn; Salem S. Al-Deyabe; Sam S. Yoon

doi:10.1016/j.ceramint.2014.03.131

Graphene-titania films by supersonic kinetic spraying for enhanced performance of dye-sensitized solar cells

Do Yeon Kim, Bhavana N. Joshi, Jung Jae Park, Jong Gun Lee, You Hong Cha, Tae Yeon Seong, Suk In Noh, Hyo Jin Ahn, Salem S. Al-Deyabe, Sam S. Yoon

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

Graphene-titania films were fabricated by supersonic kinetic spray, known as aerosol deposition. Graphene concentration was varied to fabricate 0.1, 0.3, 0.5, 0.7, and 1.0 wt% G-TiO₂ films for dye-sensitized solar cell (DSSC) application and to investigate the effect of graphene concentration on their energy conversion efficiency. The G-TiO₂ films were characterized and analyzed based on results from SEM, XRD, XPS, TEM, and the current-voltage curve. The optimal concentration was 0.3 wt%, which decreased the recombination rate, favoring the formation of photogenerated electron-hole pairs. As a result, the conversion efficiency was 5.02% while that of the pure TiO₂ was 3.14%. A clear trend per various concentrations was observed. At higher concentrations than 0.3 wt%, the conversion efficiency decreased owing to higher absorption of light by graphene present on the surface, thus reducing the generation of electron-hole pairs.

Original language	English
Pages (from-to)	11089-11097
Number of pages	9
Journal	Ceramics International
Volume	40
Issue number	7 PART B
DOIs	https://doi.org/10.1016/j.ceramint.2014.03.131
Publication status	Published - 2014

Keywords

Aerosol deposition
Dye-sensitized solar cell
Graphene-titania
Supersonic kinetic spraying

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2014.03.131

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@article{8bc1bf16a1884d8e9ff8324c90e22136,

title = "Graphene-titania films by supersonic kinetic spraying for enhanced performance of dye-sensitized solar cells",

abstract = "Graphene-titania films were fabricated by supersonic kinetic spray, known as aerosol deposition. Graphene concentration was varied to fabricate 0.1, 0.3, 0.5, 0.7, and 1.0 wt% G-TiO2 films for dye-sensitized solar cell (DSSC) application and to investigate the effect of graphene concentration on their energy conversion efficiency. The G-TiO2 films were characterized and analyzed based on results from SEM, XRD, XPS, TEM, and the current-voltage curve. The optimal concentration was 0.3 wt%, which decreased the recombination rate, favoring the formation of photogenerated electron-hole pairs. As a result, the conversion efficiency was 5.02% while that of the pure TiO2 was 3.14%. A clear trend per various concentrations was observed. At higher concentrations than 0.3 wt%, the conversion efficiency decreased owing to higher absorption of light by graphene present on the surface, thus reducing the generation of electron-hole pairs.",

keywords = "Aerosol deposition, Dye-sensitized solar cell, Graphene-titania, Supersonic kinetic spraying",

author = "Kim, {Do Yeon} and Joshi, {Bhavana N.} and Park, {Jung Jae} and Lee, {Jong Gun} and Cha, {You Hong} and Seong, {Tae Yeon} and {In Noh}, Suk and Ahn, {Hyo Jin} and Al-Deyabe, {Salem S.} and Yoon, {Sam S.}",

note = "Funding Information: This work was supported by the Human Resources Development program (No. 20124030200120) of KETEP. This work was also supported by the Industrial Strategic Technology Development Program (10045221). The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding the work through the research group project No. RGP-089.",

year = "2014",

doi = "10.1016/j.ceramint.2014.03.131",

language = "English",

volume = "40",

pages = "11089--11097",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Limited",

number = "7 PART B",

}

TY - JOUR

T1 - Graphene-titania films by supersonic kinetic spraying for enhanced performance of dye-sensitized solar cells

AU - Kim, Do Yeon

AU - Joshi, Bhavana N.

AU - Park, Jung Jae

AU - Lee, Jong Gun

AU - Cha, You Hong

AU - Seong, Tae Yeon

AU - In Noh, Suk

AU - Ahn, Hyo Jin

AU - Al-Deyabe, Salem S.

AU - Yoon, Sam S.

N1 - Funding Information: This work was supported by the Human Resources Development program (No. 20124030200120) of KETEP. This work was also supported by the Industrial Strategic Technology Development Program (10045221). The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding the work through the research group project No. RGP-089.

PY - 2014

Y1 - 2014

N2 - Graphene-titania films were fabricated by supersonic kinetic spray, known as aerosol deposition. Graphene concentration was varied to fabricate 0.1, 0.3, 0.5, 0.7, and 1.0 wt% G-TiO2 films for dye-sensitized solar cell (DSSC) application and to investigate the effect of graphene concentration on their energy conversion efficiency. The G-TiO2 films were characterized and analyzed based on results from SEM, XRD, XPS, TEM, and the current-voltage curve. The optimal concentration was 0.3 wt%, which decreased the recombination rate, favoring the formation of photogenerated electron-hole pairs. As a result, the conversion efficiency was 5.02% while that of the pure TiO2 was 3.14%. A clear trend per various concentrations was observed. At higher concentrations than 0.3 wt%, the conversion efficiency decreased owing to higher absorption of light by graphene present on the surface, thus reducing the generation of electron-hole pairs.

AB - Graphene-titania films were fabricated by supersonic kinetic spray, known as aerosol deposition. Graphene concentration was varied to fabricate 0.1, 0.3, 0.5, 0.7, and 1.0 wt% G-TiO2 films for dye-sensitized solar cell (DSSC) application and to investigate the effect of graphene concentration on their energy conversion efficiency. The G-TiO2 films were characterized and analyzed based on results from SEM, XRD, XPS, TEM, and the current-voltage curve. The optimal concentration was 0.3 wt%, which decreased the recombination rate, favoring the formation of photogenerated electron-hole pairs. As a result, the conversion efficiency was 5.02% while that of the pure TiO2 was 3.14%. A clear trend per various concentrations was observed. At higher concentrations than 0.3 wt%, the conversion efficiency decreased owing to higher absorption of light by graphene present on the surface, thus reducing the generation of electron-hole pairs.

KW - Aerosol deposition

KW - Dye-sensitized solar cell

KW - Graphene-titania

KW - Supersonic kinetic spraying

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U2 - 10.1016/j.ceramint.2014.03.131

DO - 10.1016/j.ceramint.2014.03.131

M3 - Article

AN - SCOPUS:84900499403

SN - 0272-8842

VL - 40

SP - 11089

EP - 11097

JO - Ceramics International

JF - Ceramics International

IS - 7 PART B

ER -

Graphene-titania films by supersonic kinetic spraying for enhanced performance of dye-sensitized solar cells

Abstract

Keywords

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