Effect of valeric acid as a co-adsorbate on the performance of dye-sensitized solar cells

Cheon Su Kang; Su Kyung Park; Jong Tae Kim; Jin Kyu Kang; Yoon Soo Han; Sie Young Choi

doi:10.1080/15421406.2013.851439

Effect of valeric acid as a co-adsorbate on the performance of dye-sensitized solar cells

Cheon Su Kang
, Su Kyung Park
, Jong Tae Kim
, Jin Kyu Kang
, Yoon Soo Han
, Sie Young Choi

Division of Energy Techonology

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

4 Scopus citations

Abstract

We investigated effects of valeric acid (VA) as a co-adsorbate on the photovoltaic performance of dye-sensitized solar cells (DSSCs). When the introduction of VA onto TiO₂ surface was performed after dye (N719) adsorption, the DSSC with VA showed an increase in short-circuit current (J _sc), open-circuit voltage (V_oc) and fill factor, resulting in a power conversion efficiency of 7.27%, compared to that (6.20%) of reference device without VA. Incorporation of VA on free TiO₂ surface induced longer lifetime of electrons injected from excited dyes to conduction band of TiO₂, leading to the increase of electron collection efficiency and the suppression of charge recombination between injected electrons and I₃ ^- ions, and thus larger J_sc and V_oc, respectively.

Original language	English
Pages (from-to)	9-15
Number of pages	7
Journal	Molecular Crystals and Liquid Crystals
Volume	586
Issue number	1
DOIs	https://doi.org/10.1080/15421406.2013.851439
State	Published - 1 Jan 2013

Bibliographical note

Funding Information:
This work was supported by the Gyeongbuk Science & Technology Promotion Center (GBSP) grant funded by the Korea government (MEST) (GBSP-001-120705-01).

Keywords

Charge recombination
co-adsobate
dye-sensitized solar cell
valeric acid

UN SDGs

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

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10.1080/15421406.2013.851439

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@article{fa5e03a43e634be093ab554ad8d01e47,

title = "Effect of valeric acid as a co-adsorbate on the performance of dye-sensitized solar cells",

abstract = "We investigated effects of valeric acid (VA) as a co-adsorbate on the photovoltaic performance of dye-sensitized solar cells (DSSCs). When the introduction of VA onto TiO2 surface was performed after dye (N719) adsorption, the DSSC with VA showed an increase in short-circuit current (J sc), open-circuit voltage (Voc) and fill factor, resulting in a power conversion efficiency of 7.27\%, compared to that (6.20\%) of reference device without VA. Incorporation of VA on free TiO2 surface induced longer lifetime of electrons injected from excited dyes to conduction band of TiO2, leading to the increase of electron collection efficiency and the suppression of charge recombination between injected electrons and I3 - ions, and thus larger Jsc and Voc, respectively.",

keywords = "Charge recombination, co-adsobate, dye-sensitized solar cell, valeric acid",

author = "Kang, \{Cheon Su\} and Park, \{Su Kyung\} and Kim, \{Jong Tae\} and Kang, \{Jin Kyu\} and Han, \{Yoon Soo\} and Choi, \{Sie Young\}",

note = "Funding Information: This work was supported by the Gyeongbuk Science \& Technology Promotion Center (GBSP) grant funded by the Korea government (MEST) (GBSP-001-120705-01).",

year = "2013",

month = jan,

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doi = "10.1080/15421406.2013.851439",

language = "English",

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journal = "Molecular Crystals and Liquid Crystals",

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TY - JOUR

T1 - Effect of valeric acid as a co-adsorbate on the performance of dye-sensitized solar cells

AU - Kang, Cheon Su

AU - Park, Su Kyung

AU - Kim, Jong Tae

AU - Kang, Jin Kyu

AU - Han, Yoon Soo

AU - Choi, Sie Young

N1 - Funding Information: This work was supported by the Gyeongbuk Science & Technology Promotion Center (GBSP) grant funded by the Korea government (MEST) (GBSP-001-120705-01).

PY - 2013/1/1

Y1 - 2013/1/1

N2 - We investigated effects of valeric acid (VA) as a co-adsorbate on the photovoltaic performance of dye-sensitized solar cells (DSSCs). When the introduction of VA onto TiO2 surface was performed after dye (N719) adsorption, the DSSC with VA showed an increase in short-circuit current (J sc), open-circuit voltage (Voc) and fill factor, resulting in a power conversion efficiency of 7.27%, compared to that (6.20%) of reference device without VA. Incorporation of VA on free TiO2 surface induced longer lifetime of electrons injected from excited dyes to conduction band of TiO2, leading to the increase of electron collection efficiency and the suppression of charge recombination between injected electrons and I3 - ions, and thus larger Jsc and Voc, respectively.

AB - We investigated effects of valeric acid (VA) as a co-adsorbate on the photovoltaic performance of dye-sensitized solar cells (DSSCs). When the introduction of VA onto TiO2 surface was performed after dye (N719) adsorption, the DSSC with VA showed an increase in short-circuit current (J sc), open-circuit voltage (Voc) and fill factor, resulting in a power conversion efficiency of 7.27%, compared to that (6.20%) of reference device without VA. Incorporation of VA on free TiO2 surface induced longer lifetime of electrons injected from excited dyes to conduction band of TiO2, leading to the increase of electron collection efficiency and the suppression of charge recombination between injected electrons and I3 - ions, and thus larger Jsc and Voc, respectively.

KW - Charge recombination

KW - co-adsobate

KW - dye-sensitized solar cell

KW - valeric acid

UR - https://www.scopus.com/pages/publications/84892682340

U2 - 10.1080/15421406.2013.851439

DO - 10.1080/15421406.2013.851439

M3 - Article

AN - SCOPUS:84892682340

SN - 1542-1406

VL - 586

SP - 9

EP - 15

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

IS - 1

ER -

Effect of valeric acid as a co-adsorbate on the performance of dye-sensitized solar cells

Abstract

Bibliographical note

Keywords

UN SDGs

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