Syntheses and Photovoltaic Properties of New Pyrazine-Based Organic Photosensitizers for Dye-Sensitized Solar Cells

Mi-Ra Kim, Thanh Chung Pham, Yeonghwan Choi, Seah Yang, Hyun-Seock Yang, Sung Heum Park, Mijeong Kang and Songyi Lee
Additional contact information
Mi-Ra Kim: Department of Chemistry, Pukyong National University, Busan 48513, Korea
Thanh Chung Pham: Division of Chemical Engineering and Materials Science, Ewha Womans University, Seoul 03760, Korea
Yeonghwan Choi: Department of Chemistry, Pukyong National University, Busan 48513, Korea
Seah Yang: Department of Chemistry, Pukyong National University, Busan 48513, Korea
Hyun-Seock Yang: Department of Physics, Pukyong National University, Busan 48513, Korea
Sung Heum Park: Department of Physics, Pukyong National University, Busan 48513, Korea
Mijeong Kang: Department of Optics and Mechatronics Engineering, Pusan National University, Busan 46241, Korea
Songyi Lee: Department of Chemistry, Pukyong National University, Busan 48513, Korea

Energies, 2022, vol. 15, issue 16, 1-17

Abstract: Three novel pyrazine-based organic photosensitizers denoted as TPP, TPPS, and TPPF were synthesized for dye-sensitized solar cell (DSSC) studies. Chemical structures of the pyrazine-based photosensitizers were designed with pyrazine derivatives as acceptors, triphenylamine groups as donors, and the thiophene–cyanoacryl group as an auxiliary heterocyclic linkers-acceptor. Using UV-vis spectrophotometry, cyclic voltammetry, and density functional theory calculations, optical and electrochemical characteristics of these pyrazine-based photosensitizers were examined and explored in relation to photovoltaic parameters. The effects of the molecular structures of these photosensitizers on the performances of DSSCs were also investigated. The overall conversion efficiencies of DSSCs based on pyrazine-based photosensitizers were 1.31~2.64% under AM 1.5 irradiation of 100 mW/cm 2 . To confirm the effect of interfacial charge transfer on photovoltaic performances of DSSC based on pyrazine-based photosensitizers, interfacial charge transfer resistances were investigated by electrical impedance spectroscopy (EIS) measurements.

Keywords: dye-sensitized solar cells; organic photosensitizer; pyrazine derivatives; photovoltaic properties; electrical impedance analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/16/5938/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/16/5938/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:16:p:5938-:d:889757

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().