Rohizat, Nurul Syazwani and Ripain, Atiena Husna Abdullah and Lim, Chin Seong and Tan, Chee Leong and Zakaria, Rozalina (2021) Plasmon-enhanced reduced graphene oxide photodetector with monometallic of Au and Ag nanoparticles at VIS-NIR region. Scientific Reports, 11 (1). ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-021-99189-w.
Full text not available from this repository.Abstract
Hybrids plasmonic nanoparticles (NPs) and unique 2D graphene significantly enhanced the photoresponse of the photodetectors. The metallic NPs that exhibit localized surface plasmon resonance (LSPR) improves strong light absorption, scattering and localized electromagnetic field by the incident photons depending on the optimum condition of NPs. We report high-performance photodetectors based on reduced graphene oxide (rGO) integrated with monometallic of Au and Ag nanoparticles via a familiar fabrication technique using an electron beam evaporation machine. Under 680 nm illumination of light, our rGO photodetector exhibited the highest performance for Au-rGO with the highest responsivity of 67.46 AW(-1) and the highest specific detectivity (2.39 x 10(13) Jones). Meanwhile, Ag-rGO achieved the highest responsivity of 17.23 AW(-1), specific detectivity (7.17 x 10(11) Jones) at 785 nm. The response time are 0.146 mu s and 0.135 mu s for Au-rGO and Ag-rGO respectively for both wavelengths. The proposed photodetector with combining monometallic and graphene provide a new strategy to construct reliable and next-generation optoelectronic devices at VIS-NIR region.
| Item Type: | Article |
|---|---|
| Funders: | Impact-Oriented Interdisciplinary Research Grant (IIRG) under University Malaya PPGP (IIRG013C-2019) |
| Uncontrolled Keywords: | Hybrids plasmonic nanoparticles (NPs); Unique 2D graphene; Graphene oxide photodetector; Monometallic of Au; Ag nanoparticles; VIS-NIR region |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Science Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 13 Jul 2022 06:14 |
| Last Modified: | 13 Jul 2022 06:14 |
| URI: | http://eprints.um.edu.my/id/eprint/28019 |
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