Effect of regioisomeric substitution patterns on the performance of quinoxaline-based dye-sensitized solar cells

Jong Min Park; Chang Young Jung; Yue Wang; Hyun Dong Choi; Seong Je Park; Pinyin Ou; Woo Dong Jang; Jae Yun Jaung

doi:10.1016/j.electacta.2018.12.133

Effect of regioisomeric substitution patterns on the performance of quinoxaline-based dye-sensitized solar cells

Jong Min Park, Chang Young Jung, Yue Wang, Hyun Dong Choi, Seong Je Park, Pinyin Ou, Woo Dong Jang, Jae Yun Jaung

Department of Chemistry

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

14 Citations (Scopus)

Abstract

Regioisomeric quinoxaline-based dyes (NQXs) were synthesized to study the effect of substitution patterns on the performance of quinoxaline-based dye sensitized solar cells (DSSCs). The ¹ H NMR results indicated that the substitution patterns of ethylene groups on the quinoxaline unit greatly affect the molecular architecture through C–H⋯N hydrogen bonding, which also influenced the absorption and efficiency of the DSSCs. The highest occupied molecular orbital (HOMO) levels of the NQXs were estimated to range from 0.94 to 0.99 V by cyclic voltammetry and visible absorption studies, which is suitable for DSSCs. The photocurrent density-voltage curves and incident photon-to-electron conversion efficiency spectra of NQXs indicated that the introduction of phenothiazine groups at the 2- and 3-positions of quinoxaline is the most effective pattern for quinoxaline-based organic sensitizers in DSSCs.

Original language	English
Pages (from-to)	650-662
Number of pages	13
Journal	Electrochimica Acta
Volume	298
DOIs	https://doi.org/10.1016/j.electacta.2018.12.133
Publication status	Published - 2019 Mar 1

Bibliographical note

Funding Information:
This work was supported by the Technology Innovation Program and the New and Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) , and the granted financial resources from the Ministry of Trade, Industry and Energy, Republic of Korea (No. 10047756 and No. 20163030013960 ) The authors would also like to thank Prof. Sung Hoon Jeong (Smart Organic Materials Laboratory, Hanyang University, Korea) and Prof. Min Jae Ko (Advanced Energy Materials Laboratory, Hanyang University, Korea) for allowing us to use their equipment related to cell fabrication, solar simulators, EQE measurements, and EIS measurements.

Publisher Copyright:
© 2018 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Electrochemistry

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10.1016/j.electacta.2018.12.133

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title = "Effect of regioisomeric substitution patterns on the performance of quinoxaline-based dye-sensitized solar cells",

abstract = " Regioisomeric quinoxaline-based dyes (NQXs) were synthesized to study the effect of substitution patterns on the performance of quinoxaline-based dye sensitized solar cells (DSSCs). The 1 H NMR results indicated that the substitution patterns of ethylene groups on the quinoxaline unit greatly affect the molecular architecture through C–H⋯N hydrogen bonding, which also influenced the absorption and efficiency of the DSSCs. The highest occupied molecular orbital (HOMO) levels of the NQXs were estimated to range from 0.94 to 0.99 V by cyclic voltammetry and visible absorption studies, which is suitable for DSSCs. The photocurrent density-voltage curves and incident photon-to-electron conversion efficiency spectra of NQXs indicated that the introduction of phenothiazine groups at the 2- and 3-positions of quinoxaline is the most effective pattern for quinoxaline-based organic sensitizers in DSSCs.",

author = "Park, {Jong Min} and Jung, {Chang Young} and Yue Wang and Choi, {Hyun Dong} and Park, {Seong Je} and Pinyin Ou and Jang, {Woo Dong} and Jaung, {Jae Yun}",

note = "Funding Information: This work was supported by the Technology Innovation Program and the New and Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) , and the granted financial resources from the Ministry of Trade, Industry and Energy, Republic of Korea (No. 10047756 and No. 20163030013960 ) The authors would also like to thank Prof. Sung Hoon Jeong (Smart Organic Materials Laboratory, Hanyang University, Korea) and Prof. Min Jae Ko (Advanced Energy Materials Laboratory, Hanyang University, Korea) for allowing us to use their equipment related to cell fabrication, solar simulators, EQE measurements, and EIS measurements. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

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AU - Park, Jong Min

AU - Jung, Chang Young

AU - Wang, Yue

AU - Choi, Hyun Dong

AU - Park, Seong Je

AU - Ou, Pinyin

AU - Jang, Woo Dong

AU - Jaung, Jae Yun

N1 - Funding Information: This work was supported by the Technology Innovation Program and the New and Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) , and the granted financial resources from the Ministry of Trade, Industry and Energy, Republic of Korea (No. 10047756 and No. 20163030013960 ) The authors would also like to thank Prof. Sung Hoon Jeong (Smart Organic Materials Laboratory, Hanyang University, Korea) and Prof. Min Jae Ko (Advanced Energy Materials Laboratory, Hanyang University, Korea) for allowing us to use their equipment related to cell fabrication, solar simulators, EQE measurements, and EIS measurements. Publisher Copyright: © 2018 Elsevier Ltd

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Regioisomeric quinoxaline-based dyes (NQXs) were synthesized to study the effect of substitution patterns on the performance of quinoxaline-based dye sensitized solar cells (DSSCs). The 1 H NMR results indicated that the substitution patterns of ethylene groups on the quinoxaline unit greatly affect the molecular architecture through C–H⋯N hydrogen bonding, which also influenced the absorption and efficiency of the DSSCs. The highest occupied molecular orbital (HOMO) levels of the NQXs were estimated to range from 0.94 to 0.99 V by cyclic voltammetry and visible absorption studies, which is suitable for DSSCs. The photocurrent density-voltage curves and incident photon-to-electron conversion efficiency spectra of NQXs indicated that the introduction of phenothiazine groups at the 2- and 3-positions of quinoxaline is the most effective pattern for quinoxaline-based organic sensitizers in DSSCs.

AB - Regioisomeric quinoxaline-based dyes (NQXs) were synthesized to study the effect of substitution patterns on the performance of quinoxaline-based dye sensitized solar cells (DSSCs). The 1 H NMR results indicated that the substitution patterns of ethylene groups on the quinoxaline unit greatly affect the molecular architecture through C–H⋯N hydrogen bonding, which also influenced the absorption and efficiency of the DSSCs. The highest occupied molecular orbital (HOMO) levels of the NQXs were estimated to range from 0.94 to 0.99 V by cyclic voltammetry and visible absorption studies, which is suitable for DSSCs. The photocurrent density-voltage curves and incident photon-to-electron conversion efficiency spectra of NQXs indicated that the introduction of phenothiazine groups at the 2- and 3-positions of quinoxaline is the most effective pattern for quinoxaline-based organic sensitizers in DSSCs.

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Effect of regioisomeric substitution patterns on the performance of quinoxaline-based dye-sensitized solar cells

Abstract

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