Near-infrared absorbing squaraine dye with extended π conjugation for dye-sensitized solar cells

Claudio Magistris; Stefano Martiniani; Nadia Barbero; Jinhyung Park; Caterina Benzi; Assaf Anderson; Chun Hung Law; Claudia Barolo; Brian O'Regan

doi:10.1016/j.renene.2013.06.018

Near-infrared absorbing squaraine dye with extended π conjugation for dye-sensitized solar cells

Claudio Magistris, Stefano Martiniani, Nadia Barbero, Jinhyung Park, Caterina Benzi, Assaf Anderson, Chun Hung Law, Claudia Barolo, Brian O'Regan

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

34 Scopus citations

Abstract

A NIR absorbing squaraine dye has been synthesized as a sensitizer for use in dye-sensitized solar cells (DSCs). Following computational calculations, a benz[cd]indole moiety was selected as an electron-rich heterocyclic component and condensed with indole-based emisquaraine bearing a carboxyl group, as an anchor for their immobilization on TiO₂, to obtain an unsymmetrical squaraine with extended absorption due to its extensive π conjugation. The cells based on this dye exhibited a spectral response in the near-infrared region over 750nm in addition to the visible region with a light absorption edge at 900nm. The cells showed 1.1% efficiency and Incident Photon Current Efficiency (IPCE) of 36% at 800nm.

Original language	English
Pages (from-to)	672-678
Number of pages	7
Journal	Renewable Energy
Volume	60
DOIs	https://doi.org/10.1016/j.renene.2013.06.018
State	Published - 2013
Externally published	Yes

Bibliographical note

Funding Information:
CM and C.Benzi acknowledge financial support by Innovasol EU project ( 227057-2 ), JP, CB and NB acknowledge financial support by DSSCX project ( PRIN 2010-2011 , 20104XET32 ) from Ministero dell'Istruzione, dell'Università e della Ricerca . NB thanks MIUR for partial funding her research grant. SM and AA acknowledge support from the Imperial College UROP Bursary and the Alan Howard Scholarship for Energy Futures. We thank Dr. Davide Di Censo for electrochemical measurements and fruitful discussion and Ms. Ada Ferri for her valuable help.

Funding

CM and C.Benzi acknowledge financial support by Innovasol EU project ( 227057-2 ), JP, CB and NB acknowledge financial support by DSSCX project ( PRIN 2010-2011 , 20104XET32 ) from Ministero dell'Istruzione, dell'Università e della Ricerca . NB thanks MIUR for partial funding her research grant. SM and AA acknowledge support from the Imperial College UROP Bursary and the Alan Howard Scholarship for Energy Futures. We thank Dr. Davide Di Censo for electrochemical measurements and fruitful discussion and Ms. Ada Ferri for her valuable help.

Funders	Funder number
DSSCX	PRIN 2010-2011, 20104XET32
Innovasol EU	227057-2
Ministero dell'Istruzione, dell'Università e della Ricerca
Seventh Framework Programme	227057
Imperial College Healthcare Charity
Ministero dell’Istruzione, dell’Università e della Ricerca

Keywords

DFT calculation
Dye-sensitized solar cell
NIR squaraine
Near-infrared

UN SDGs

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

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10.1016/j.renene.2013.06.018

Cite this

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title = "Near-infrared absorbing squaraine dye with extended π conjugation for dye-sensitized solar cells",

abstract = "A NIR absorbing squaraine dye has been synthesized as a sensitizer for use in dye-sensitized solar cells (DSCs). Following computational calculations, a benz[cd]indole moiety was selected as an electron-rich heterocyclic component and condensed with indole-based emisquaraine bearing a carboxyl group, as an anchor for their immobilization on TiO2, to obtain an unsymmetrical squaraine with extended absorption due to its extensive π conjugation. The cells based on this dye exhibited a spectral response in the near-infrared region over 750nm in addition to the visible region with a light absorption edge at 900nm. The cells showed 1.1% efficiency and Incident Photon Current Efficiency (IPCE) of 36% at 800nm.",

keywords = "DFT calculation, Dye-sensitized solar cell, NIR squaraine, Near-infrared",

author = "Claudio Magistris and Stefano Martiniani and Nadia Barbero and Jinhyung Park and Caterina Benzi and Assaf Anderson and Law, {Chun Hung} and Claudia Barolo and Brian O'Regan",

note = "Funding Information: CM and C.Benzi acknowledge financial support by Innovasol EU project ( 227057-2 ), JP, CB and NB acknowledge financial support by DSSCX project ( PRIN 2010-2011 , 20104XET32 ) from Ministero dell'Istruzione, dell'Universit{\`a} e della Ricerca . NB thanks MIUR for partial funding her research grant. SM and AA acknowledge support from the Imperial College UROP Bursary and the Alan Howard Scholarship for Energy Futures. We thank Dr. Davide Di Censo for electrochemical measurements and fruitful discussion and Ms. Ada Ferri for her valuable help. ",

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AU - Magistris, Claudio

AU - Martiniani, Stefano

AU - Barbero, Nadia

AU - Park, Jinhyung

AU - Benzi, Caterina

AU - Anderson, Assaf

AU - Law, Chun Hung

AU - Barolo, Claudia

AU - O'Regan, Brian

N1 - Funding Information: CM and C.Benzi acknowledge financial support by Innovasol EU project ( 227057-2 ), JP, CB and NB acknowledge financial support by DSSCX project ( PRIN 2010-2011 , 20104XET32 ) from Ministero dell'Istruzione, dell'Università e della Ricerca . NB thanks MIUR for partial funding her research grant. SM and AA acknowledge support from the Imperial College UROP Bursary and the Alan Howard Scholarship for Energy Futures. We thank Dr. Davide Di Censo for electrochemical measurements and fruitful discussion and Ms. Ada Ferri for her valuable help.

PY - 2013

Y1 - 2013

N2 - A NIR absorbing squaraine dye has been synthesized as a sensitizer for use in dye-sensitized solar cells (DSCs). Following computational calculations, a benz[cd]indole moiety was selected as an electron-rich heterocyclic component and condensed with indole-based emisquaraine bearing a carboxyl group, as an anchor for their immobilization on TiO2, to obtain an unsymmetrical squaraine with extended absorption due to its extensive π conjugation. The cells based on this dye exhibited a spectral response in the near-infrared region over 750nm in addition to the visible region with a light absorption edge at 900nm. The cells showed 1.1% efficiency and Incident Photon Current Efficiency (IPCE) of 36% at 800nm.

AB - A NIR absorbing squaraine dye has been synthesized as a sensitizer for use in dye-sensitized solar cells (DSCs). Following computational calculations, a benz[cd]indole moiety was selected as an electron-rich heterocyclic component and condensed with indole-based emisquaraine bearing a carboxyl group, as an anchor for their immobilization on TiO2, to obtain an unsymmetrical squaraine with extended absorption due to its extensive π conjugation. The cells based on this dye exhibited a spectral response in the near-infrared region over 750nm in addition to the visible region with a light absorption edge at 900nm. The cells showed 1.1% efficiency and Incident Photon Current Efficiency (IPCE) of 36% at 800nm.

KW - DFT calculation

KW - Dye-sensitized solar cell

KW - NIR squaraine

KW - Near-infrared

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Near-infrared absorbing squaraine dye with extended π conjugation for dye-sensitized solar cells

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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