Red-absorbing cationic acceptor dyes for photocathodes in tandem solar cells

Christopher J. Wood; Ming Cheng; Charlotte A. Clark; Raphael Horvath; Ian P. Clark; Michelle L. Hamilton; Michael Towrie; Michael W. George; Licheng Sun; Xichuan Yang; Elizabeth A. Gibson

doi:10.1021/jp4119937

Red-absorbing cationic acceptor dyes for photocathodes in tandem solar cells

Christopher J. Wood
, Ming Cheng
, Charlotte A. Clark
, Raphael Horvath
, Ian P. Clark
, Michelle L. Hamilton
, Michael Towrie
, Michael W. George
, Licheng Sun
, Xichuan Yang^*
, Elizabeth A. Gibson

^*Corresponding author for this work

Research output: Journal Publication › Article › peer-review

52 Citations (Scopus)

Abstract

A pair of new donor-π-acceptor dyes that absorb toward the red region of the visible spectrum (CAD 1 and CAD 2) utilizing indolium cationic acceptor units have been synthesized for use in p-type dye-sensitized solar cells (p-DSC). Their optical and electrochemical properties were determined experimentally, including application of ultrafast transient absorption and time-resolved infrared spectroscopies. Our results are supported by computational modeling. NiO-based p-DSCs with CAD 1 and CAD 2 gave short-circuit photocurrent densities of 3.6 and 3.3 mA cm^-2, respectively, which are substantially higher than that of any previous red-absorbing p-DSC. These results are a step toward tandem dye-sensitized solar cells that absorb higher-energy photons at the TiO₂ anode and lower-energy photons at the NiO cathode. Routes to further improve the efficiency of NiO DSCS are also discussed.

Original language	English
Pages (from-to)	16536-16546
Number of pages	11
Journal	Journal of Physical Chemistry C
Volume	118
Issue number	30
DOIs	https://doi.org/10.1021/jp4119937
Publication status	Published - 31 Jul 2014
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp4119937

Cite this

@article{1275e59234e94ec2a4c0f7381fd47fbe,

title = "Red-absorbing cationic acceptor dyes for photocathodes in tandem solar cells",

abstract = "A pair of new donor-π-acceptor dyes that absorb toward the red region of the visible spectrum (CAD 1 and CAD 2) utilizing indolium cationic acceptor units have been synthesized for use in p-type dye-sensitized solar cells (p-DSC). Their optical and electrochemical properties were determined experimentally, including application of ultrafast transient absorption and time-resolved infrared spectroscopies. Our results are supported by computational modeling. NiO-based p-DSCs with CAD 1 and CAD 2 gave short-circuit photocurrent densities of 3.6 and 3.3 mA cm-2, respectively, which are substantially higher than that of any previous red-absorbing p-DSC. These results are a step toward tandem dye-sensitized solar cells that absorb higher-energy photons at the TiO2 anode and lower-energy photons at the NiO cathode. Routes to further improve the efficiency of NiO DSCS are also discussed.",

author = "Wood, \{Christopher J.\} and Ming Cheng and Clark, \{Charlotte A.\} and Raphael Horvath and Clark, \{Ian P.\} and Hamilton, \{Michelle L.\} and Michael Towrie and George, \{Michael W.\} and Licheng Sun and Xichuan Yang and Gibson, \{Elizabeth A.\}",

year = "2014",

month = jul,

day = "31",

doi = "10.1021/jp4119937",

language = "English",

volume = "118",

pages = "16536--16546",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "30",

}

TY - JOUR

T1 - Red-absorbing cationic acceptor dyes for photocathodes in tandem solar cells

AU - Wood, Christopher J.

AU - Cheng, Ming

AU - Clark, Charlotte A.

AU - Horvath, Raphael

AU - Clark, Ian P.

AU - Hamilton, Michelle L.

AU - Towrie, Michael

AU - George, Michael W.

AU - Sun, Licheng

AU - Yang, Xichuan

AU - Gibson, Elizabeth A.

PY - 2014/7/31

Y1 - 2014/7/31

N2 - A pair of new donor-π-acceptor dyes that absorb toward the red region of the visible spectrum (CAD 1 and CAD 2) utilizing indolium cationic acceptor units have been synthesized for use in p-type dye-sensitized solar cells (p-DSC). Their optical and electrochemical properties were determined experimentally, including application of ultrafast transient absorption and time-resolved infrared spectroscopies. Our results are supported by computational modeling. NiO-based p-DSCs with CAD 1 and CAD 2 gave short-circuit photocurrent densities of 3.6 and 3.3 mA cm-2, respectively, which are substantially higher than that of any previous red-absorbing p-DSC. These results are a step toward tandem dye-sensitized solar cells that absorb higher-energy photons at the TiO2 anode and lower-energy photons at the NiO cathode. Routes to further improve the efficiency of NiO DSCS are also discussed.

AB - A pair of new donor-π-acceptor dyes that absorb toward the red region of the visible spectrum (CAD 1 and CAD 2) utilizing indolium cationic acceptor units have been synthesized for use in p-type dye-sensitized solar cells (p-DSC). Their optical and electrochemical properties were determined experimentally, including application of ultrafast transient absorption and time-resolved infrared spectroscopies. Our results are supported by computational modeling. NiO-based p-DSCs with CAD 1 and CAD 2 gave short-circuit photocurrent densities of 3.6 and 3.3 mA cm-2, respectively, which are substantially higher than that of any previous red-absorbing p-DSC. These results are a step toward tandem dye-sensitized solar cells that absorb higher-energy photons at the TiO2 anode and lower-energy photons at the NiO cathode. Routes to further improve the efficiency of NiO DSCS are also discussed.

UR - https://www.scopus.com/pages/publications/84905457055

U2 - 10.1021/jp4119937

DO - 10.1021/jp4119937

M3 - Article

AN - SCOPUS:84905457055

SN - 1932-7447

VL - 118

SP - 16536

EP - 16546

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 30

ER -

Red-absorbing cationic acceptor dyes for photocathodes in tandem solar cells

Abstract

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ASJC Scopus subject areas

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