| Autor: |
Nenden Fauziah, Nadiatus Silmi, Fairuz Gianirfan Nugroho, Kemal Lesmana Hidayat Putra, Didi Prasetyo Benu, Fry Voni Steky, Risa Rahmawati Sunarya, Brian Yuliarto, Rahmat Hidayat, Veinardi Suendo |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Carbon Trends, Vol 12, Iss , Pp 100292- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2667-0569 |
| DOI: |
10.1016/j.cartre.2023.100292 |
| Popis: |
Graphene has various excellent properties, contributing to its wide potential applications. Electrochemically exfoliated graphene (EEG) is a graphene-like material synthesized via electrochemical methods, requiring a shorter synthesis time and much less chemical waste than the Hummers method. Ultrasonication modification of EEG will increase the structure of defects, dispersion capability, and performance of EEG as a counter electrode (CE) material in dye-sensitized solar cells (DSSC). FTIR-ATR, XRD, and Raman spectroscopy confirmed the EEG material. SEM-EDS analysis observed that all EEGs have thick layer morphology. The dispersion study showed that repeated ultrasonication improves the dispersion ability of the EEG material. In addition, repeated ultrasonication improves the structural defects in EEG material. The EEG with 6 repetitions of sonication (EEG_6) gave the highest performance as a CE in DSSC with 0.890% efficiency, while the reduced graphene oxide (rGO) with the Hummers method is 0.714%. When the mixture of Polyaniline/Graphite/EEG_6 (PG_EEG_6) material was used as a CE, a 2.493% efficiency was gained, better than Pt CE (1.626%). Therefore, using EEG_6 composite as a CE leads to a higher-performing and more eco-friendly DSSC. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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