Fabrication of dye-sensitized solar cells based on push-pull asymmetrical substituted zinc and copper phthalocyanines and reduced graphene oxide nanosheets

Francis Chindeka; Philani Mashazi; Jonathan Britton; David O. Oluwole; Sivuyisiwe Mapukata; Tebello Nyokong

doi:10.1016/j.jphotochem.2020.112612

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Fabrication of dye-sensitized solar cells based on push-pull asymmetrical substituted zinc and copper phthalocyanines and reduced graphene oxide nanosheets

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Fabrication of dye-sensitized solar cells based on push-pull asymmetrical substituted zinc and copper phthalocyanines and reduced graphene oxide nanosheets

Francis Chindeka, Philani Mashazi, Jonathan Britton, David O. Oluwole, Sivuyisiwe Mapukata and Tebello Nyokong

Journal of photochemistry and photobiology. A, Chemistry, Vol.399, p.112612

01/08/2020

DOI: https://doi.org/10.1016/j.jphotochem.2020.112612

Abstract

Chemistry

Chemistry, Physical

Physical Sciences

Science & Technology

Dye sensitized solar cells (DSSCs) were fabricated by using 2(3,5-biscarboxyphenoxy), 9(10), 16(17), 23(24)-tri(tertbutyl) phthalocyaninato Cu (4) and Zn (5) complexes as dyes on the ITO-TiO2 photoanodes containing reduced graphene oxide nanosheets (rGONS) or nitrogen-doped rGONS (NrGONS). The evaluation of the assembled DSSCs revealed that using ITO-TiO2-NrGONS-CuPc photoanode had the highest fill factor (FF) and power conversion efficiency (eta) of 69% and 4.36% respectively. These results show that the asymmetrical phthalocyanine complexes (4) and (5) exhibit significant improvement on the performance of the DSSC compared to our previous work on symmetrical carboxylated phthalocyanines with eta = 3.19%.

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Title: Fabrication of dye-sensitized solar cells based on push-pull asymmetrical substituted zinc and copper phthalocyanines and reduced graphene oxide nanosheets
Creators: Francis Chindeka - Rhodes University
Philani Mashazi - Rhodes University
Jonathan Britton - Rhodes University
David O. Oluwole - Rhodes University
Sivuyisiwe Mapukata - Rhodes University
Tebello Nyokong - Rhodes University
Publication Details: Journal of photochemistry and photobiology. A, Chemistry, Vol.399, p.112612
Publisher: Elsevier
Number of pages: 9
Date published: 01/08/2020
Grant note: CSIR National Laser Centre; Council of Scientific & Industrial Research (CSIR) - India African Laser Centre (ALC) Rhodes University UID 62620 / Rental Pool Programme, National Research Foundation (NRF) of South Africa through DST/NRF South African Research Chairs Initiative for Professor of Medicinal Chemistry and Nanotechnology Department of Science and Technology (DST); Department of Science & Technology (India)
Identifiers: 99820062802346
Academic Unit: School of Chemistry and Chemical Engineering
Language: English
Resource Type: Journal article

Fabrication of dye-sensitized solar cells based on push-pull asymmetrical substituted zinc and copper phthalocyanines and reduced graphene oxide nanosheets

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