Efficient thieno[3,2-a]carbazole-based organic dyes for dye-sensitized solar cells

Hua Jiang; Kazuaki Oniwa; Ashraful Islam; Jian Zhao; Liyuan Han; Ying Ji Sun; Ming Bao; Naoki Asao; Yoshinori Yamamoto; Tienan Jin

doi:10.1016/j.tet.2015.04.018

Efficient thieno[3,2-a]carbazole-based organic dyes for dye-sensitized solar cells

Hua Jiang, Kazuaki Oniwa, Ashraful Islam, Jian Zhao, Liyuan Han, Ying Ji Sun, Ming Bao, Naoki Asao, Yoshinori Yamamoto, Tienan Jin

SCI - Research and Analytical Center for Giant Molecules

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

10 Citations (Scopus)

Abstract

Abstract A new series of donor-π-acceptor organic dyes based on thieno[3,2-a]carbazole as a new donor moiety, designated as JH-dyes, has been synthesized for dye-sensitized solar cells (DSCs). The photophysical properties and DSC performances of JH-dyes have been characterized. Among the three JH-dyes, a high power conversion efficiency (η) of 8.04% with a short-circuit current (J_sc) of 14.08 mA cm^-2 and an open-circuit voltage (V_oc) of 0.78 V has been achieved for DSC based on JH03 bearing hexyl chains on the terthiophene π-linker. The electrochemical impedance spectra (EIS) and intensity-modulated photovoltage spectroscopy (IMVS) of JH-cells were measured to understand the effect of molecular structure on charge transfer process and electron life time.

Original language	English
Article number	26621
Pages (from-to)	6534-6540
Number of pages	7
Journal	Tetrahedron
Volume	71
Issue number	37
DOIs	https://doi.org/10.1016/j.tet.2015.04.018
Publication status	Published - 2015 Aug 7

Keywords

Charge transfer
Donor-π-acceptor
Dye-sensitized solar cell
Molecular planarity
Thieno[3,2-a]carbazole

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10.1016/j.tet.2015.04.018

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@article{65ab7c1f21e74cc388f9384b1f6f466c,

title = "Efficient thieno[3,2-a]carbazole-based organic dyes for dye-sensitized solar cells",

abstract = "Abstract A new series of donor-π-acceptor organic dyes based on thieno[3,2-a]carbazole as a new donor moiety, designated as JH-dyes, has been synthesized for dye-sensitized solar cells (DSCs). The photophysical properties and DSC performances of JH-dyes have been characterized. Among the three JH-dyes, a high power conversion efficiency (η) of 8.04% with a short-circuit current (Jsc) of 14.08 mA cm-2 and an open-circuit voltage (Voc) of 0.78 V has been achieved for DSC based on JH03 bearing hexyl chains on the terthiophene π-linker. The electrochemical impedance spectra (EIS) and intensity-modulated photovoltage spectroscopy (IMVS) of JH-cells were measured to understand the effect of molecular structure on charge transfer process and electron life time.",

keywords = "Charge transfer, Donor-π-acceptor, Dye-sensitized solar cell, Molecular planarity, Thieno[3,2-a]carbazole",

author = "Hua Jiang and Kazuaki Oniwa and Ashraful Islam and Jian Zhao and Liyuan Han and Sun, {Ying Ji} and Ming Bao and Naoki Asao and Yoshinori Yamamoto and Tienan Jin",

note = "Funding Information: This work was supported by World Premier International Research Center Initiative (WPI), MEXT (Japan) . This work was partly supported by Core Research for Evolutional Science and Technology (CREST) of the Japan Science and Technology Agency . A.I. acknowledges the support of the JSPS KAKENHI grant No. 26288113 . Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = aug,

day = "7",

doi = "10.1016/j.tet.2015.04.018",

language = "English",

volume = "71",

pages = "6534--6540",

journal = "Tetrahedron",

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number = "37",

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TY - JOUR

T1 - Efficient thieno[3,2-a]carbazole-based organic dyes for dye-sensitized solar cells

AU - Jiang, Hua

AU - Oniwa, Kazuaki

AU - Islam, Ashraful

AU - Zhao, Jian

AU - Han, Liyuan

AU - Sun, Ying Ji

AU - Bao, Ming

AU - Asao, Naoki

AU - Yamamoto, Yoshinori

AU - Jin, Tienan

N1 - Funding Information: This work was supported by World Premier International Research Center Initiative (WPI), MEXT (Japan) . This work was partly supported by Core Research for Evolutional Science and Technology (CREST) of the Japan Science and Technology Agency . A.I. acknowledges the support of the JSPS KAKENHI grant No. 26288113 . Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/8/7

Y1 - 2015/8/7

N2 - Abstract A new series of donor-π-acceptor organic dyes based on thieno[3,2-a]carbazole as a new donor moiety, designated as JH-dyes, has been synthesized for dye-sensitized solar cells (DSCs). The photophysical properties and DSC performances of JH-dyes have been characterized. Among the three JH-dyes, a high power conversion efficiency (η) of 8.04% with a short-circuit current (Jsc) of 14.08 mA cm-2 and an open-circuit voltage (Voc) of 0.78 V has been achieved for DSC based on JH03 bearing hexyl chains on the terthiophene π-linker. The electrochemical impedance spectra (EIS) and intensity-modulated photovoltage spectroscopy (IMVS) of JH-cells were measured to understand the effect of molecular structure on charge transfer process and electron life time.

AB - Abstract A new series of donor-π-acceptor organic dyes based on thieno[3,2-a]carbazole as a new donor moiety, designated as JH-dyes, has been synthesized for dye-sensitized solar cells (DSCs). The photophysical properties and DSC performances of JH-dyes have been characterized. Among the three JH-dyes, a high power conversion efficiency (η) of 8.04% with a short-circuit current (Jsc) of 14.08 mA cm-2 and an open-circuit voltage (Voc) of 0.78 V has been achieved for DSC based on JH03 bearing hexyl chains on the terthiophene π-linker. The electrochemical impedance spectra (EIS) and intensity-modulated photovoltage spectroscopy (IMVS) of JH-cells were measured to understand the effect of molecular structure on charge transfer process and electron life time.

KW - Charge transfer

KW - Donor-π-acceptor

KW - Dye-sensitized solar cell

KW - Molecular planarity

KW - Thieno[3,2-a]carbazole

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JO - Tetrahedron

JF - Tetrahedron

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ER -

Efficient thieno[3,2-a]carbazole-based organic dyes for dye-sensitized solar cells

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