Publication: Novel gamma-irradiated chitosan-doped reduced graphene-CuInS2 composites as counter electrodes for dye-sensitized solar cells
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
20462069
Rights Holder(s)
Scopus
Bibliographic Citation
Natural Product Research. Vol , No. (2022), p.-
Suggested Citation
Areerob Y., Hamontree C., Sricharoen P., Limchoowong N., Laksee S., Oh W.-C., Pattarith K. Novel gamma-irradiated chitosan-doped reduced graphene-CuInS2 composites as counter electrodes for dye-sensitized solar cells. Natural Product Research. Vol , No. (2022), p.-. doi:10.1039/d2ra01749k Retrieved from: https://hdl.handle.net/20.500.14740/9640
Abstract
To address the issues associated with traditional counter electrodes, a novel gamma-irradiated chitosan-doped reduced graphene-CuInS2 composite (Chi@RGO-CIS) was used as the counter electrode (CE). The system was fabricated following a simple hydrothermal method. The prepared Chi@RGO-CIS was characterized by various spectroscopic and microscopic techniques. The synergistic effect between chitosan, CuInS2, and reduced graphene oxide can help in producing a large surface area. It can also help in the generation of catalytic sites toward I-/I3-redox electrolytes. We used a composite (based on electrical considerations) to study the effect of the amount of graphene on the characteristics and photovoltaic efficiency of the Chi@RGO-CIS composites. The solar cell assembled with 1.5% Chi@RGO-CIS exhibited an efficiency of 12.21%. The efficiency was higher than that of a Pt-based device (9.96%) fabricated under the same conditions. Hence, Chi@RGO-CIS can be potentially used as the CE of dye-sensitized solar cells (DSSCs). It can be used as a substitute for Pt in DSSCs. © 2022 The Royal Society of Chemistry