Two-dimensional X-shaped organic dyes bearing two anchoring groups to TiO2 photoanode for efficient dye-sensitized solar cells

Sun Jae Kim; Dong Uk Heo; Beom Jin Yoo; Boeun Kim; Min Jae Ko; Min Ju Cho; Dong Hoon Choi

doi:10.1016/j.synthmet.2012.10.003

Two-dimensional X-shaped organic dyes bearing two anchoring groups to TiO₂ photoanode for efficient dye-sensitized solar cells

Sun Jae Kim, Dong Uk Heo, Beom Jin Yoo, Boeun Kim, Min Jae Ko, Min Ju Cho, Dong Hoon Choi

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

12 Citations (Scopus)

Abstract

Novel two-dimensional X-shaped donor-π-acceptor (D-π-A)-type dyes were designed and successfully synthesized for use in a dye-sensitized solar cell (DSSC). Two triphenylamine units in these dyes act as electron donor units, while two cyanoacrylic acid groups act as electron acceptor units and anchoring groups to the TiO₂ photoanode. The photovoltaic properties of the newly synthesized dye-containing DSSCs were investigated to identify the effects of conjugation length between the electron donors and acceptors, and the molecular energy levels of the dyes. Among the three dyes we synthesized, (2E,2′E)-3,3′-(5′,5″-(4,5-bis(4-(bis(4-tert-butylphenyl) amino)styryl)-1,2-phenylene)bis(2,2′-bithiophene-5′,5-diyl)) bis(2-cyanoacrylic acid) (11) showed the highest power conversion efficiency of 3.14% (η_max = 4.06% with TiCl₄ treatment) under AM 1.5G illumination (100 mW cm^-2) in a photoactive area of 0.418 cm² with short circuit current density of 7.27 mA cm^-2, open circuit photovoltage of 612 mV, and a fill factor of 70.6%.

Original language	English
Pages (from-to)	2095-2101
Number of pages	7
Journal	Synthetic Metals
Volume	162
Issue number	23
DOIs	https://doi.org/10.1016/j.synthmet.2012.10.003
Publication status	Published - 2012 Dec

Bibliographical note

Funding Information:
This work was supported by the Korea Institute of Energy Technology Evaluation and planning (KETEP) grant funded by the Ministry of Knowledge Economy under contract No. 20103020010010-13-2-400. The authors also acknowledge the financial support from the Priority Research Centers Program (NRF20120005860) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST).

Keywords

Photosensitizer
Power conversion efficiency
Solar cell
Synthesis
X-shaped molecule

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

UN SDGs

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

Access to Document

10.1016/j.synthmet.2012.10.003

Cite this

@article{11643cd4a94845288c93df345e3979bf,

title = "Two-dimensional X-shaped organic dyes bearing two anchoring groups to TiO2 photoanode for efficient dye-sensitized solar cells",

abstract = "Novel two-dimensional X-shaped donor-π-acceptor (D-π-A)-type dyes were designed and successfully synthesized for use in a dye-sensitized solar cell (DSSC). Two triphenylamine units in these dyes act as electron donor units, while two cyanoacrylic acid groups act as electron acceptor units and anchoring groups to the TiO2 photoanode. The photovoltaic properties of the newly synthesized dye-containing DSSCs were investigated to identify the effects of conjugation length between the electron donors and acceptors, and the molecular energy levels of the dyes. Among the three dyes we synthesized, (2E,2′E)-3,3′-(5′,5″-(4,5-bis(4-(bis(4-tert-butylphenyl) amino)styryl)-1,2-phenylene)bis(2,2′-bithiophene-5′,5-diyl)) bis(2-cyanoacrylic acid) (11) showed the highest power conversion efficiency of 3.14% (ηmax = 4.06% with TiCl4 treatment) under AM 1.5G illumination (100 mW cm-2) in a photoactive area of 0.418 cm2 with short circuit current density of 7.27 mA cm-2, open circuit photovoltage of 612 mV, and a fill factor of 70.6%.",

keywords = "Photosensitizer, Power conversion efficiency, Solar cell, Synthesis, X-shaped molecule",

author = "Kim, {Sun Jae} and Heo, {Dong Uk} and Yoo, {Beom Jin} and Boeun Kim and Ko, {Min Jae} and Cho, {Min Ju} and Choi, {Dong Hoon}",

note = "Funding Information: This work was supported by the Korea Institute of Energy Technology Evaluation and planning (KETEP) grant funded by the Ministry of Knowledge Economy under contract No. 20103020010010-13-2-400. The authors also acknowledge the financial support from the Priority Research Centers Program (NRF20120005860) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST).",

year = "2012",

month = dec,

doi = "10.1016/j.synthmet.2012.10.003",

language = "English",

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AU - Kim, Sun Jae

AU - Heo, Dong Uk

AU - Yoo, Beom Jin

AU - Kim, Boeun

AU - Ko, Min Jae

AU - Cho, Min Ju

AU - Choi, Dong Hoon

N1 - Funding Information: This work was supported by the Korea Institute of Energy Technology Evaluation and planning (KETEP) grant funded by the Ministry of Knowledge Economy under contract No. 20103020010010-13-2-400. The authors also acknowledge the financial support from the Priority Research Centers Program (NRF20120005860) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST).

PY - 2012/12

Y1 - 2012/12

N2 - Novel two-dimensional X-shaped donor-π-acceptor (D-π-A)-type dyes were designed and successfully synthesized for use in a dye-sensitized solar cell (DSSC). Two triphenylamine units in these dyes act as electron donor units, while two cyanoacrylic acid groups act as electron acceptor units and anchoring groups to the TiO2 photoanode. The photovoltaic properties of the newly synthesized dye-containing DSSCs were investigated to identify the effects of conjugation length between the electron donors and acceptors, and the molecular energy levels of the dyes. Among the three dyes we synthesized, (2E,2′E)-3,3′-(5′,5″-(4,5-bis(4-(bis(4-tert-butylphenyl) amino)styryl)-1,2-phenylene)bis(2,2′-bithiophene-5′,5-diyl)) bis(2-cyanoacrylic acid) (11) showed the highest power conversion efficiency of 3.14% (ηmax = 4.06% with TiCl4 treatment) under AM 1.5G illumination (100 mW cm-2) in a photoactive area of 0.418 cm2 with short circuit current density of 7.27 mA cm-2, open circuit photovoltage of 612 mV, and a fill factor of 70.6%.

AB - Novel two-dimensional X-shaped donor-π-acceptor (D-π-A)-type dyes were designed and successfully synthesized for use in a dye-sensitized solar cell (DSSC). Two triphenylamine units in these dyes act as electron donor units, while two cyanoacrylic acid groups act as electron acceptor units and anchoring groups to the TiO2 photoanode. The photovoltaic properties of the newly synthesized dye-containing DSSCs were investigated to identify the effects of conjugation length between the electron donors and acceptors, and the molecular energy levels of the dyes. Among the three dyes we synthesized, (2E,2′E)-3,3′-(5′,5″-(4,5-bis(4-(bis(4-tert-butylphenyl) amino)styryl)-1,2-phenylene)bis(2,2′-bithiophene-5′,5-diyl)) bis(2-cyanoacrylic acid) (11) showed the highest power conversion efficiency of 3.14% (ηmax = 4.06% with TiCl4 treatment) under AM 1.5G illumination (100 mW cm-2) in a photoactive area of 0.418 cm2 with short circuit current density of 7.27 mA cm-2, open circuit photovoltage of 612 mV, and a fill factor of 70.6%.

KW - Photosensitizer

KW - Power conversion efficiency

KW - Solar cell

KW - Synthesis

KW - X-shaped molecule

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