Facile synthesis of metal-free organic dyes featuring a thienylethynyl spacer for dye sensitized solar cells

Manal Al-Eid; Sunghwan Lim; Kwang Won Park; Brian Fitzpatrick; Chi Hwan Han; Kyungwon Kwak; Jongin Hong; Graeme Cooke

doi:10.1016/j.dyepig.2014.01.004

Facile synthesis of metal-free organic dyes featuring a thienylethynyl spacer for dye sensitized solar cells

Manal Al-Eid, Sunghwan Lim, Kwang Won Park, Brian Fitzpatrick, Chi Hwan Han, Kyungwon Kwak, Jongin Hong, Graeme Cooke

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

46 Citations (Scopus)

Abstract

In this article, we report the facile synthesis of metal-free dyes 6 and 7, their solution-based optical and redox properties and their use as sensitizers in dye-sensitized solar cells (DSSCs). Our studies indicate that the addition of the second thiophene unit in dye 7, decreases the oxidation and reduction potential and consequently the band gap of the molecule compared to 6. Furthermore, increasing the length of the conjugated spacer also affects on the properties of the DSSCs, with dye 7 providing a higher power conversion efficiency compared to 6 (η = 4.49 versus 3.23%).

Original language	English
Pages (from-to)	197-203
Number of pages	7
Journal	Dyes and Pigments
Volume	104
DOIs	https://doi.org/10.1016/j.dyepig.2014.01.004
Publication status	Published - 2014 May
Externally published	Yes

Bibliographical note

Funding Information:
MA-E thanks the Ministry of Higher Education (Saudi Arabia) for a scholarship. BF and GC thank the EPSRC. JH acknowledges Basic Science Research Program (2013-026989) and Mid-career Research Program (2012-047815) through the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP) of Korea . KW acknowledges the Chung-Ang University Excellent Student Scholarship. KK thanks for the support from Basic Science Research Program through the NRF funded by the MSIP of Korea ( 2009-0093817 ).

Keywords

Alkyne
Dye-sensitized solar cells
Metal-free
Organic dye
Solvatochromic
Thiophene

ASJC Scopus subject areas

General Chemical Engineering
Process Chemistry and Technology

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10.1016/j.dyepig.2014.01.004

Cite this

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title = "Facile synthesis of metal-free organic dyes featuring a thienylethynyl spacer for dye sensitized solar cells",

abstract = "In this article, we report the facile synthesis of metal-free dyes 6 and 7, their solution-based optical and redox properties and their use as sensitizers in dye-sensitized solar cells (DSSCs). Our studies indicate that the addition of the second thiophene unit in dye 7, decreases the oxidation and reduction potential and consequently the band gap of the molecule compared to 6. Furthermore, increasing the length of the conjugated spacer also affects on the properties of the DSSCs, with dye 7 providing a higher power conversion efficiency compared to 6 (η = 4.49 versus 3.23%).",

keywords = "Alkyne, Dye-sensitized solar cells, Metal-free, Organic dye, Solvatochromic, Thiophene",

author = "Manal Al-Eid and Sunghwan Lim and Park, {Kwang Won} and Brian Fitzpatrick and Han, {Chi Hwan} and Kyungwon Kwak and Jongin Hong and Graeme Cooke",

note = "Funding Information: MA-E thanks the Ministry of Higher Education (Saudi Arabia) for a scholarship. BF and GC thank the EPSRC. JH acknowledges Basic Science Research Program (2013-026989) and Mid-career Research Program (2012-047815) through the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP) of Korea . KW acknowledges the Chung-Ang University Excellent Student Scholarship. KK thanks for the support from Basic Science Research Program through the NRF funded by the MSIP of Korea ( 2009-0093817 ).",

year = "2014",

month = may,

doi = "10.1016/j.dyepig.2014.01.004",

language = "English",

volume = "104",

pages = "197--203",

journal = "Dyes and Pigments",

issn = "0143-7208",

publisher = "Elsevier B.V.",

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AU - Al-Eid, Manal

AU - Lim, Sunghwan

AU - Park, Kwang Won

AU - Fitzpatrick, Brian

AU - Han, Chi Hwan

AU - Kwak, Kyungwon

AU - Hong, Jongin

AU - Cooke, Graeme

N1 - Funding Information: MA-E thanks the Ministry of Higher Education (Saudi Arabia) for a scholarship. BF and GC thank the EPSRC. JH acknowledges Basic Science Research Program (2013-026989) and Mid-career Research Program (2012-047815) through the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP) of Korea . KW acknowledges the Chung-Ang University Excellent Student Scholarship. KK thanks for the support from Basic Science Research Program through the NRF funded by the MSIP of Korea ( 2009-0093817 ).

PY - 2014/5

Y1 - 2014/5

N2 - In this article, we report the facile synthesis of metal-free dyes 6 and 7, their solution-based optical and redox properties and their use as sensitizers in dye-sensitized solar cells (DSSCs). Our studies indicate that the addition of the second thiophene unit in dye 7, decreases the oxidation and reduction potential and consequently the band gap of the molecule compared to 6. Furthermore, increasing the length of the conjugated spacer also affects on the properties of the DSSCs, with dye 7 providing a higher power conversion efficiency compared to 6 (η = 4.49 versus 3.23%).

AB - In this article, we report the facile synthesis of metal-free dyes 6 and 7, their solution-based optical and redox properties and their use as sensitizers in dye-sensitized solar cells (DSSCs). Our studies indicate that the addition of the second thiophene unit in dye 7, decreases the oxidation and reduction potential and consequently the band gap of the molecule compared to 6. Furthermore, increasing the length of the conjugated spacer also affects on the properties of the DSSCs, with dye 7 providing a higher power conversion efficiency compared to 6 (η = 4.49 versus 3.23%).

KW - Alkyne

KW - Dye-sensitized solar cells

KW - Metal-free

KW - Organic dye

KW - Solvatochromic

KW - Thiophene

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DO - 10.1016/j.dyepig.2014.01.004

M3 - Article

AN - SCOPUS:84893156622

SN - 0143-7208

VL - 104

SP - 197

EP - 203

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Facile synthesis of metal-free organic dyes featuring a thienylethynyl spacer for dye sensitized solar cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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