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Low-Temperature CVD-Grown Graphene Thin Films as Transparent Electrode for Organic Photovoltaics
| Content Provider | MDPI |
|---|---|
| Author | Ali, Alaa Y. Holmes, Natalie P. Ameri, Mohsen Feron, Krishna Thameel, Mahir N. Barr, Matthew G. Fahy, Adam Holdsworth, John Belcher, Warwick Dastoor, Paul Zhou, Xiaojing |
| Copyright Year | 2022 |
| Description | Good conductivity, suitable transparency and uniform layers of graphene thin film can be produced by chemical vapour deposition (CVD) at low temperature and utilised as a transparent electrode in organic photovoltaics. Using chlorobenzene trapped in poly(methyl methacrylate) (PMMA) polymer as the carbon source, growth temperature $(T_{growth}$) of 600 °C at hydrogen $(H_{2}$) flow of 75 standard cubic centimetres per minute (sccm) was used to prepare graphene by CVD catalytically on copper (Cu) foil substrates. Through the $T_{growth}$ of 600 °C, we observed and identified the quality of the graphene films, as characterised by Raman spectroscopy. Finally, P3HT (poly (3-hexylthiophene-2, 5-diyl)): PCBM $(phenyl-C_{61}$-butyric acid methyl ester) bulk heterojunction solar cells were fabricated on graphene-based window electrodes and compared with indium tin oxide (ITO)-based devices. It is interesting to observe that the OPV performance is improved more than 5 fold with increasing illuminated areas, hinting that high resistance between graphene domains can be alleviated by photo generated charges. |
| Starting Page | 681 |
| e-ISSN | 20796412 |
| DOI | 10.3390/coatings12050681 |
| Journal | Coatings |
| Issue Number | 5 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-05-16 |
| Access Restriction | Open |
| Subject Keyword | Coatings Graphene Thin Film Low-temperature Cvd Organic Photovoltaics |
| Content Type | Text |
| Resource Type | Article |
